Thomas B. Whitaker

Works (76)

Updated: August 9th, 2025 05:04

2025 article

Comparison of repeated sample measurements for Ochratoxin A and Total Aflatoxin in pistachio lots

Davis, J. P., Sanchez, S., Whitaker, T. B., Osborne, J. A., & Samadpour, M. (2025, June 20). World Mycotoxin Journal.

By: J. Davis n, S. Sanchez, T. Whitaker n, J. Osborne n & M. Samadpour

author keywords: pistachio; ochratoxin; aflatoxin; sampling; operating characteristic curves
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Pesticide Residue Analysis and Safety
Source: Web Of Science
Added: August 4, 2025

2023 article

Current sampling plans can introduce high variance in mycotoxin testing results as demonstrated by the online FAO Mycotoxin Sampling Tool

Tittlemier, S. A., & Whitaker, T. B. (2023, April 12). World Mycotoxin Journal.

By: S. Tittlemier * & T. Whitaker n

author keywords: aflatoxins; fumonisins; deoxynivalenol; ochratoxin A; sample size; sampling variance; operating characteristics curve
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Insect and Pesticide Research
Source: Web Of Science
Added: July 10, 2023

2021 article

Are sample size and sample preparation for mycotoxin quantitation in grain products getting trivialized?

Kumphanda, J., Matumba, L., Monjerezi, M., Whitaker, T. B., Saeger, S. D., & Makun, H. A. (2021, July 6). Food Control.

By: J. Kumphanda *, L. Matumba *, M. Monjerezi *, T. Whitaker n, S. Saeger * & H. Makun *

author keywords: Mycotoxin quantitation; Maize; Grains; Sample size; Sample preparation; Test portion
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Insect and Pesticide Research
Source: Web Of Science
Added: August 30, 2021

2021 article

Improved Sample Selection and Preparation Methods for Sampling Plans Used to Facilitate Rapid and Reliable Estimation of Aflatoxin in Chicken Feed

Kibugu, J., Mdachi, R., Munga, L., Mburu, D., Whitaker, T., Huynh, T. P., … Lindahl, J. F. (2021, March 16). Toxins.

By: J. Kibugu *, R. Mdachi*, L. Munga *, D. Mburu *, T. Whitaker n, T. Huynh, D. Grace *, J. Lindahl *

author keywords: aflatoxin; chicken feed; representative sampling; improved aflatoxin test procedure; validation
MeSH headings : Aflatoxin B1 / analysis; Aflatoxin B1 / toxicity; Animal Feed / microbiology; Animal Husbandry; Animals; Chickens; Enzyme-Linked Immunosorbent Assay; Food Analysis; Food Microbiology; Fungi / metabolism; Limit of Detection; Reproducibility of Results; Risk Assessment; Workflow
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Wheat and Barley Genetics and Pathology
TL;DR: The improved procedure showed satisfactory performance, good field applicability and reduced sample analysis turnaround time, and accuracy, precision, limits of detection and quantification, linearity, robustness and ruggedness were used as performance criteria. (via Semantic Scholar)
Source: Web Of Science
Added: April 19, 2021

2021 article

Measurements of High Oleic Purity in Peanut Lots Using Rapid, Single Kernel Near‐Infrared Reflectance Spectroscopy

Davis, B. I., Agraz, C. B., Kline, M., Gottschall, E., Nolt, M., Whitaker, T. B., … Davis, J. P. (2021, April 26). Journal of the American Oil Chemists Society.

By: B. Davis *, C. Agraz*, M. Kline*, E. Gottschall*, M. Nolt*, T. Whitaker n, J. Osborne n, E. Tengstrand ...

author keywords: NIRS; High oleic peanuts; Seed purity; Sorting; Quality control; QSorter explorer
topics (OpenAlex): Peanut Plant Research Studies; Coconut Research and Applications; Spectroscopy and Chemometric Analyses
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: May 17, 2021

2021 article

Review of good agricultural practices for smallholder maize farmers to minimise aflatoxin contamination

Xu, F., Baker, R. C., Whitaker, T. B., Luo, H., Zhao, Y., Stevenson, A., … Zhang, G. (2021, November 3). World Mycotoxin Journal.

By: F. Xu, R. Baker, T. Whitaker n, H. Luo, Y. Zhao, A. Stevenson, C. Boesch*, G. Zhang

author keywords: Aspergillus; maize production chain; smallholder farmers; practical practices
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Genetics and Plant Breeding
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: April 25, 2022

2021 article

Sampling plan designs for gluten estimation in oat flour by discrete and composite sampling

Sharma, G. M., Wang, S. S., Pereira, M., Bedford, B., Wehling, P., Arlinghaus, M., … Chirtel, S. J. (2021, February 17). Food Control.

By: G. Sharma *, S. Wang *, M. Pereira*, B. Bedford *, P. Wehling *, M. Arlinghaus *, J. Warren*, T. Whitaker n ...

author keywords: Gluten; Oat flour; Sampling plan; ELISA
topics (OpenAlex): Celiac Disease Research and Management; Advanced Statistical Process Monitoring; Microscopic Colitis
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: April 4, 2022

2020 article

Evaluation of sampling plans for measurement of gluten in oat groats

Sharma, G. M., Pereira, M., Wang, S. S., Chirtel, S. J., Whitaker, T. B., Wehling, P., … Williams, K. M. (2020, March 23). Food Control.

By: G. Sharma *, M. Pereira*, S. Wang *, S. Chirtel*, T. Whitaker n, P. Wehling *, M. Arlinghaus *, T. Canida*, L. Jackson *, K. Williams*

author keywords: Gluten; Oats; Sampling; ELISA
topics (OpenAlex): Celiac Disease Research and Management; Food composition and properties
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: May 18, 2020

2019 article

Maize meal slurry mixing: an economical recipe for precise aflatoxin quantitation

Kumphanda, J., Matumba, L., Whitaker, T. B., Kasapila, W., & Sandahl, J. (2019, April 8). World Mycotoxin Journal.

By: J. Kumphanda *, L. Matumba *, T. Whitaker n, W. Kasapila * & J. Sandahl

author keywords: dry grind; slurry mixing; sample preparation; aflatoxin analysis; maize; precision; recovery
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Listeria monocytogenes in Food Safety
Source: Web Of Science
Added: July 22, 2019

2019 article

Revisiting the sampling, sample preparation, and analytical variability associated with testing wheat for deoxynivalenol

Tittlemier, S. A., Chan, J., Gaba, D., Pleskach, K., Osborne, J., Slate, A. B., & Whitaker, T. B. (2019, October 10). World Mycotoxin Journal.

By: S. Tittlemier *, J. Chan*, D. Gaba*, K. Pleskach*, J. Osborne n, A. Slate n, T. Whitaker n

author keywords: heterogeneity; variance; sampling; grains; operating characteristic curve
topics (OpenAlex): Mycotoxins in Agriculture and Food; Meat and Animal Product Quality; Spectroscopy and Chemometric Analyses
Source: Web Of Science
Added: December 30, 2019

2018 article

A systematic approach to monitoring high preharvest aflatoxin levels in maize and peanuts in Africa and Asia

Pitt, J. I., Boesch, C., Whitaker, T. B., & Clarke, R. (2018, June 19). World Mycotoxin Journal.

By: J. Pitt *, C. Boesch*, T. Whitaker n & R. Clarke*

author keywords: aflatoxin; maize; peanuts; surveillance; warning
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Peanut Plant Research Studies
TL;DR: An approach is set out based on the establishment of a surveillance system in each community to monitor aflatoxin contamination resulting from drought stress before harvest and advise on remedial actions. (via Semantic Scholar)
Source: Web Of Science
Added: December 31, 2018

2017 article

Sampling dried figs for aflatoxin - Part II: effect of sampling plan design on reducing the risk of misclassifying lots

Ozer, H., Basegmez, H. I. O., Whitaker, T. B., Slate, A. B., & Giesbrecht, F. G. (2017, May 15). World Mycotoxin Journal.

By: H. Ozer*, H. Basegmez *, T. Whitaker n, A. Slate n & F. Giesbrecht

author keywords: Codex Committee on Contaminants in Foods; negative binomial distribution; operating characteristic curves; buyer's risk; and seller's risk
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety
Source: Web Of Science
Added: August 6, 2018

2016 article

Developments in mycotoxin analysis: an update for 2014-2015

Berthiller, F., Brera, C., Crews, C., Iha, M. H., Krska, R., Lattanzio, V. M. T., … Whitaker, T. B. (2016, February 1). World Mycotoxin Journal.

By: F. Berthiller *, C. Brera, C. Crews*, M. Iha *, R. Krska *, V. Lattanzio *, S. MacDonald *, R. Malone ...

author keywords: aflatoxin; Alternaria toxins; ergot alkaloids; fumonisin; ochratoxin A; patulin; trichothecene; zearalenone; sampling; multi-mycotoxin; botanicals; method development
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Plant Pathogens and Fungal Diseases
TL;DR: The critical review aims to briefly discuss the most important developments and trends in mycotoxin determination as well as to address shortcomings of current methodologies. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 article

Sampling dried figs for aflatoxin – Part 1: variability associated with sampling, sample preparation, and analysis

Ozer, H., Basegmez, H. I. O., Whitaker, T. B., Slate, A. B., & Giesbrecht, F. G. (2016, December 12). World Mycotoxin Journal.

By: H. Ozer*, H. Basegmez *, T. Whitaker n, A. Slate n & F. Giesbrecht n

author keywords: sampling variability; sample preparation variability; analytical variability
topics (OpenAlex): Mycotoxins in Agriculture and Food; Listeria monocytogenes in Food Safety; Pesticide Residue Analysis and Safety
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2015 article

Developments in mycotoxin analysis: an update for 2013-2014

Berthiller, F., Brera, C., Crews, C., Iha, M. H., Krsha, R., Lattanzio, V. M. T., … Whitaker, T. B. (2015, January 1). World Mycotoxin Journal.

By: F. Berthiller *, C. Brera *, C. Crews*, M. Iha *, R. Krsha*, V. Lattanzio *, S. MacDonald *, R. Malone ...

author keywords: aflatoxin; Alternaria toxins; ergot alkaloids; fumonisin; ochratoxin A; patulin; trichothecene; zearalenone; sampling; multi-mycotoxin; botanicals; method development
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Plant Pathogens and Fungal Diseases
TL;DR: This review highlights developments in the determination of mycotoxins over a period between mid-2013 and mid-2014, emphasising on analytical methods to determine aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes and zearalenone. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 article

Use of Combined Uncertainty of Pesticide Residue Results for Testing Compliance with Maximum Residue Limits (MRLs)

Farkas, Z., Slate, A., Whitaker, T. B., Suszter, G., & Ambrus, Á. (2015, February 6). Journal of Agricultural and Food Chemistry.

By: Z. Farkas *, A. Slate n, T. Whitaker n, G. Suszter* & Á. Ambrus

author keywords: sampling; uncertainty of measurement results; compliance with legal limits; pesticide residues; self-control of production; certification of compliance
MeSH headings : Crops, Agricultural / chemistry; Crops, Agricultural / economics; Food Contamination / analysis; Food Contamination / economics; Food Contamination / legislation & jurisprudence; Pesticide Residues / analysis; Pesticide Residues / standards
topics (OpenAlex): Pesticide Residue Analysis and Safety; Pesticide Exposure and Toxicity; Agricultural safety and regulations
TL;DR: The uncertainty of pesticide residue levels in crops due to sampling, estimated for 106 individual crops and 24 crop groups from residue data obtained from supervised trials, was adjusted with a factor of 1.3 to accommodate the larger variability of residues under normal field conditions. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 article

Variability and distribution among sample test results when sampling unprocessed oat lots for ochratoxin A

Whitaker, T. B., Slate, A. B., Nowicki, T. W., & Giesbrecht, F. G. (2015, March 26). World Mycotoxin Journal.

By: T. Whitaker n, A. Slate n, T. Nowicki & F. Giesbrecht n

author keywords: sampling plan; maximum level; buyer's risk; seller's risk; OC curve
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Pesticide Residue Analysis and Safety
Source: Web Of Science
Added: August 6, 2018

2015 article

Variability and distribution among sample test results when sampling unprocessed wheat lots for ochratoxin A

Whitaker, T. B., Slate, A. B., Nowicki, T. W., & Giesbrecht, F. G. (2015, December 21). World Mycotoxin Journal.

By: T. Whitaker n, A. Slate n, T. Nowicki & F. Giesbrecht n

author keywords: sampling plan; maximum level; buyer's risk; seller's risk; OC curve
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Pesticide Residue Analysis and Safety
Source: Web Of Science
Added: August 6, 2018

2014 article

Developments in mycotoxin analysis: an update for 2012-2013

Berthiller, F., Burdaspal, P. A., Crews, C., Iha, M. H., Krska, R., Lattanzio, V. M. T., … Whitaker, T. B. (2014, January 25). World Mycotoxin Journal.

By: F. Berthiller *, P. Burdaspal*, C. Crews*, M. Iha *, R. Krska *, V. Lattanzio *, S. MacDonald *, R. Malone* ...

author keywords: aflatoxin; Alternaria toxins; ergot alkaloids; fumonisin; ochratoxin; patulin; trichothecene; zearalenone; sampling; multimycotoxin; botanicals; method development
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Turfgrass Adaptation and Management
Source: Web Of Science
Added: August 6, 2018

2013 article

Development of an Incurred Cornbread Model for Gluten Detection by Immunoassays

Sharma, G. M., Khuda, S. E., Pereira, M., Slate, A., Jackson, L. S., Pardo, C., … Whitaker, T. B. (2013, November 18). Journal of Agricultural and Food Chemistry.

By: G. Sharma *, S. Khuda *, M. Pereira*, A. Slate n, L. Jackson *, C. Pardo*, K. Williams*, T. Whitaker n

author keywords: Gluten; ELISA; immunoassay; incurred food; thermal processing
MeSH headings : Bread / analysis; Enzyme-Linked Immunosorbent Assay / methods; Food Contamination / analysis; Glutens / analysis; Zea mays / chemistry
topics (OpenAlex): Celiac Disease Research and Management; Food Allergy and Anaphylaxis Research; Viral Infections and Immunology Research
TL;DR: The stability and immunoreactivity of gluten proteins, as measured by western blot using three different antibodies, were not adversely affected by the baking conditions, and the predicted analytical coefficient of variation associated with all ELISA kits was below 12% for all incurred levels, indicative of good analytical precision. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2012 article

Developments in mycotoxin analysis: an update for 2010-2011

Shephard, G., Berthiller, F., Burdaspal, P., Crews, C., Jonker, M., Krska, R., … Whitaker, T. (2012, January 27). World Mycotoxin Journal.

By: G. Shephard *, F. Berthiller *, P. Burdaspal, C. Crews*, M. Jonker*, R. Krska *, S. MacDonald *, R. Malone* ...

author keywords: aflatoxin; Alternaria; ergot; fumonisin; ochratoxin; patulin; trichothecene; zearalenone; sampling
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Insect and Pesticide Research; Turfgrass Adaptation and Management
Source: Web Of Science
Added: August 6, 2018

2011 article

Determination of aflatoxin risk components for in-shell Brazil nuts

Vargas, E. A., Santos, E. A., Whitaker, T. B., & Slate, A. B. (2011, June 16). Food Additives & Contaminants Part A.

By: E. Vargas*, E. Santos*, T. Whitaker n & A. Slate n

author keywords: survey; exposure; risk assessment; mycotoxins; aflatoxins
MeSH headings : Aflatoxins / chemistry; Bertholletia / chemistry; Brazil; Food Analysis; Food Contamination / analysis; Food Handling; Nuts / chemistry
topics (OpenAlex): Nuts composition and effects; Mycotoxins in Agriculture and Food; Salmonella and Campylobacter epidemiology
TL;DR: Rotten nuts were found to be a high-risk fraction for aflatoxin in in-shell Brazil nut lots, and the highest correlations were found between the a Flatoxins concentration inin in- shell Brazil nuts samples and the a flatoxin concentration in all defective fractions. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2011 article

Developments in mycotoxin analysis: an update for 2009-2010

Shephard, G., Berthiller, F., Burdaspal, P., Crews, C., Jonker, M., Krska, R., … Whitaker, T. (2011, January 1). World Mycotoxin Journal.

By: G. Shephard *, F. Berthiller *, P. Burdaspal*, C. Crews*, M. Jonker, R. Krska *, S. MacDonald *, B. Malone* ...

author keywords: aflatoxin; Alternaria; ergot; fumonisin; ochratoxin; patulin; trichothecenes; zearalenone; sampling
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Turfgrass Adaptation and Management
TL;DR: This review highlights developments in mycotoxin analysis and sampling over a period between mid-2009 and mid-2010 and covers the major mycotoxins aflatoxins, Alternaria toxins, ergot alkaloids, fumonisins, ochratoxin, patulin, trichothecenes, and zearalenone. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2010 article

Comparing the performance of sampling plans that use a single regulatory limit based upon total aflatoxins to sampling plans that use dual limits based upon B1 and total aflatoxins

Whitaker, T., Slate, A., Adams, J., Birmingham, T., & Giesbrecht, F. (2010, February 1). World Mycotoxin Journal.

By: T. Whitaker*, A. Slate*, J. Adams*, T. Birmingham* & F. Giesbrecht*

author keywords: almonds; aflatoxin; export market; sampling plans; single limits; dual limits
topics (OpenAlex): Pesticide Residue Analysis and Safety; Mycotoxins in Agriculture and Food
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Correlation between aflatoxin contamination and various USDA grade categories of shelled almonds

Journal of AOAC International, 93(3), 943–947.

By: T. Whitaker, A. Slate, T. Birmingham, J. Adams, M. Jacobs & G. Gray

Source: NC State University Libraries
Added: August 6, 2018

2010 article

Developments in mycotoxin analysis: an update for 2008-2009

Shephard, G., Berthiller, F., Dorner, J., Krska, R., Lombaert, G., Malone, B., … Whitaker, T. (2010, February 1). World Mycotoxin Journal.

By: G. Shephard *, F. Berthiller *, J. Dorner*, R. Krska *, G. Lombaert*, B. Malone, C. Maragos *, M. Sabino* ...

author keywords: aflatoxin; alternaria; cyclopiazonic acid; fumonisin; ochratoxin; patulin; trichothecenes; zearalenone; sampling
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Plant Pathogens and Fungal Diseases; Wheat and Barley Genetics and Pathology
TL;DR: This review highlights developments in mycotoxin analysis and sampling over a period between mid-2008 and mid-2009, with emphasis on novel immunological methods and further description of LC-MS andLC-MS/MS, particularly as multimycotoxin applications for different ranges of mycotoxins. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2010 article

Effect of Sample Size in the Evaluation of “In-Field” Sampling Plans for Aflatoxin B1 Determination in Corn

Brera, C., Santis, B. D., Prantera, E., Debegnach, F., Pannunzi, E., Fasano, F., … Whitaker, T. B. (2010, July 7). Journal of Agricultural and Food Chemistry.

By: C. Brera, B. Santis, E. Prantera, F. Debegnach, E. Pannunzi, F. Fasano, C. Berdini, A. Slate n, M. Miraglia, T. Whitaker n

author keywords: Aflatoxin; sampling; field; corn; ear; Monte Carlo
MeSH headings : Aflatoxin B1 / analysis; Food Contamination / analysis; Food Contamination / statistics & numerical data; Sample Size; Selection Bias; Zea mays / chemistry; Zea mays / physiology
topics (OpenAlex): Pesticide Residue Analysis and Safety; Mycotoxins in Agriculture and Food; Optimal Experimental Design Methods
TL;DR: Using the distribution information from the study, operating characteristic curves were developed to show the performance of various sampling plan designs to determine aflatoxin B(1) (AFB(1)) contamination in corn fields. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 article

A Risk Assessment Model for Importation of United States Milling Wheat Containing Tilletia contraversa

Peterson, G. L., Whitaker, T. B., Stefanski, R. J., Podleckis, E. V., Phillips, J. G., Wu, J. S., & Martinez, W. H. (2009, May 14). Plant Disease.

By: G. Peterson *, T. Whitaker n, R. Stefanski*, E. Podleckis*, J. Phillips, J. Wu*, W. Martinez*

topics (OpenAlex): Wheat and Barley Genetics and Pathology; Mycotoxins in Agriculture and Food; Listeria monocytogenes in Food Safety
TL;DR: A quantitative mathematical model was developed to evaluate and communicate the potential risk of dwarf bunt establishment from the importation of U.S. milling wheat containing teliospores of T. contraversa. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 article

Developments in mycotoxin analysis: an update for 2007-2008

Shephard, G., Berthiller, F., Dorner, J., Krska, R., Lombaert, G., Malone, B., … Whitaker, T. (2009, January 23). World Mycotoxin Journal.

By: G. Shephard *, F. Berthiller *, J. Dorner*, R. Krska *, G. Lombaert*, B. Malone, C. Maragos *, M. Sabino* ...

author keywords: aflatoxin; Alternaria toxins; cyclopiazonic acid; ergot; fumonisin; ochratoxin; patulin; trichothecenes; zearalenone; sampling
topics (OpenAlex): Mycotoxins in Agriculture and Food; Plant and fungal interactions; Wheat and Barley Genetics and Pathology; Plant Pathogens and Fungal Diseases
TL;DR: This review highlights developments in mycotoxin analysis and sampling over a period between mid-2007 and mid-2008 and demonstrates the rise of LC-MS methods, the continuing interest in developing alternative and rapid methods and the modification of well-established mycotoxins analytical methods by individual laboratories to meet their own requirements. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 article

Sampling and analytical variability associated with the determination of aflatoxins and ochratoxin A in bulk lots of powdered ginger marketed in 1-lb bags

Whitaker, T. B., Trucksess, M. W., Weaver, C. M., & Slate, A. (2009, June 15). Analytical and Bioanalytical Chemistry.

By: T. Whitaker n, M. Trucksess*, C. Weaver* & A. Slate n

author keywords: Aflatoxin; Ochratoxin A; Ginger; Sampling and analytical variability; Sampling; Foods/beverages; Quality assurance/control
MeSH headings : Aflatoxins / analysis; Food Contamination / analysis; Ginger / chemistry; Ochratoxins / analysis; Sample Size
topics (OpenAlex): Mycotoxins in Agriculture and Food; Essential Oils and Antimicrobial Activity; Phytochemicals and Medicinal Plants
TL;DR: Equations are derived to show the effect of increasing laboratory sample size and/or number of aliquots on reducing the variability of the test procedures used to estimate OTA and AF in powdered ginger. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2008 article

Sampling and Analytical Variability Associated with the Determination of Total Aflatoxins and Ochratoxin A in Powdered Ginger Sold As a Dietary Supplement in Capsules

Trucksess, M. W., Whitaker, T. B., Weaver, C. M., Slate, A., Giesbrecht, F. G., Rader, J. I., & Betz, J. M. (2008, December 23). Journal of Agricultural and Food Chemistry.

By: M. Trucksess*, T. Whitaker*, C. Weaver*, A. Slate*, F. Giesbrecht*, J. Rader*, J. Betz *

author keywords: Sampling; analytical uncertainty; aflatoxins; ochratoxin A; ginger capsules; dietary supplements
MeSH headings : Aflatoxins / analysis; Analysis of Variance; Capsules / chemistry; Chromatography, High Pressure Liquid / methods; Chromatography, High Pressure Liquid / standards; Chromatography, High Pressure Liquid / statistics & numerical data; Consumer Product Safety; Dietary Supplements / analysis; Ginger / chemistry; Ochratoxins / analysis
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Wheat and Barley Genetics and Pathology
TL;DR: The U.S. Food and Drug Administration is studying the need to monitor dietary supplements for mycotoxins such as total aflatoxins and ochratoxin A and the total variability associated with measuring AF and OTA in powdered ginger was partitioned into bottle-to-bottle, within bottle, and analytical variances. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Determining the variability associated with testing shelled corn for aflatoxin using different analytical procedures in Louisiana in 1998

Journal of AOAC International, 90(4), 1036–1041.

By: D. Park, T. Whitaker, J. Simonson, H. Morris, B. Durr & H. Njapau

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Evaluating the performance of sampling plans to detect fumonisin B-1 in maize lots marketed in Nigeria

Journal of AOAC International, 90(4), 1050–1059.

By: T. Whitaker, M. Doko, B. Maestroni, A. Slate & B. Ogunbanwo

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Evaluating the performance of sampling plans to detect hypoglycin A in ackee fruit shipments imported into the United States

Journal of AOAC International, 90(4), 1060–1072.

By: T. Whitaker, J. Saltsman, G. Ware & A. Slate

Source: NC State University Libraries
Added: August 6, 2018

2007 article

FRUITY FERMENTED OFF‐FLAVOR DISTRIBUTION IN SAMPLES FROM LARGE PEANUT LOTS

GREENE, J. L., WHITAKER, T. B., HENDRIX, K. W., & SANDERS, T. H. (2007, July 20). Journal of Sensory Studies.

By: J. Greene*, T. Whitaker*, K. Hendrix n & T. Sanders n

topics (OpenAlex): Peanut Plant Research Studies; Advanced Chemical Sensor Technologies; Coconut Research and Applications
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Sampling almonds for aflatoxin, Part II: Estimating risks associated with various sampling plan designs

Journal of AOAC International, 90(3), 778–785.

By: T. Whitaker, A. Slate, J. Hurley & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Sampling hazelnuts for aflatoxin: Effect of sample size and accept/reject limit on reducing the risk of misclassifying lots

Journal of AOAC International, 90(4), 1028–1035.

By: G. Ozay, F. Seyhan, A. Yilmaz, T. Whitaker, A. Slate & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Predicting aflatoxin and fumonisin in shelled corn lots sing poor-quality grade components

Journal of AOAC International, 89(2), 433–440.

By: A. Johansson, T. Whitaker, W. Hagler, D. Bowman, A. Slate & G. Payne

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Sampling almonds for aflatoxin, part I: Estimation of uncertainty associated with sampling, sample preparation, and analysis

Journal of AOAC International, 89(4), 1027–1034.

By: T. Whitaker, A. Slate, M. Jacobs, J. Hurley, J. Adams & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Sampling hazelnuts for aflatoxin: Uncertainty associated with sampling, sample preparation, and analysis

Journal of AOAC International, 89(4), 1004–1011.

By: G. Ozay, F. Seyhan, A. Yilmaz, T. Whitaker, A. Slate & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Testing green coffee for ochratoxin A, part III: Performance of ochratoxin A sampling plan

Journal of AOAC International, 89(4), 1021–1026.

By: E. Vargas, T. Whitaker, E. Santos, A. Slate, F. Lima & R. Franca

Source: NC State University Libraries
Added: August 6, 2018

2005 article

Design of a sampling plan to detect ochratoxin A in green coffee

Vargas, E. A., Whitaker, T. B., Santos, E. A. D., Slate, A. B., Lima, F. B., & Franca, R. C. A. (2005, December 28). Food Additives & Contaminants.

By: E. Vargas*, T. Whitaker n, E. Santos*, A. Slate n, F. Lima* & R. Franca*

author keywords: ochratoxin A; green coffee; sampling plan; uncertainty
MeSH headings : Coffee / chemistry; Food Analysis / methods; Food Contamination / analysis; Humans; Ochratoxins / analysis; Reproducibility of Results; Sample Size; Specimen Handling / methods
topics (OpenAlex): Mycotoxins in Agriculture and Food; Coffee research and impacts
TL;DR: Specific computer software was developed using the variance and distribution information to predict the probability of accepting or rejecting coffee lots at specific OTA concentrations and an operating characteristic (OC) curve specific to a sampling plan design was used. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Immunochemical analytical methods for the determination of peanut proteins in foods

Journal of AOAC International, 88(1), 161–174.

By: T. Whitaker, K. Williams, M. Trucksess & A. Slate

Source: NC State University Libraries
Added: August 6, 2018

2005 article

Sampling Foods for Mycotoxins

Whitaker, T. B. (2005, December 2). Food Additives & Contaminants.

By: T. Whitaker n

author keywords: mycotoxins; sampling; uncertainty
MeSH headings : Food Analysis / methods; Food Contamination / analysis; Humans; Mycotoxins / analysis; Reproducibility of Results; Sample Size; Specimen Handling / methods
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide and Herbicide Environmental Studies; Pesticide Residue Analysis and Safety
TL;DR: Methods to reduce sampling, sample preparation and analytical variability are discussed and the variability for each step of the mycotoxin test procedure, as measured by the variance statistic, is shown to increase with mycot toxin concentration. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 article

Sampling Uncertainties for the Detection of Chemical Agents in Complex Food Matrices

Whitaker, T. B., & Johansson, A. S. (2005, June 1). Journal of Food Protection.

By: T. Whitaker n & A. Johansson n

MeSH headings : Aflatoxins / isolation & purification; Analysis of Variance; Animals; Bioterrorism / prevention & control; Chromatography, High Pressure Liquid / methods; Dose-Response Relationship, Drug; Food Analysis; Humans; Models, Theoretical; Reproducibility of Results; Sensitivity and Specificity; Zea mays / chemistry
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Listeria monocytogenes in Food Safety
TL;DR: Aflatoxin is easier to detect and identify in foods intentionally contaminated at high levels than in foods with low levels of contamination because the relative standard deviation decreases and the percentage of contaminated kernels increases with an increase in concentration. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Testing green coffee for ochratoxin A, part II: Observed distribution of ochratoxin A test results

Journal of AOAC International, 88(3), 780–787.

By: E. Vargas, T. Whitaker, E. Dos Santos, A. Slate, F. Lima & R. Franca

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Evaluation of sampling plans to detect Cry9C protein in corn flour and meal

Journal of AOAC International, 87(4), 950–960.

By: T. Whitaker, M. Trucksess, F. Giesbrecht, A. Slate & F. Thomas

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Testing green coffee for ochratoxin A, Part I: Estimation of variance components

Journal of AOAC International, 87(4), 884–891.

By: E. Vargas, T. Whitaker, E. Santos, A. Slate, F. Lima & R. Franca

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Variation of analytical results for peanuts in energy bars and milk chocolate

Journal of AOAC International, 87(4), 943–949.

By: M. Trucksess, T. Whitaker, A. Slate, K. Williams, V. Brewer, P. Whittaker, J. Heeres

Source: NC State University Libraries
Added: August 6, 2018

2003 article

Detecting Mycotoxins in Agricultural Commodities

Whitaker, T. B. (2003, January 1). Molecular Biotechnology.

By: T. Whitaker n

author keywords: sampling; mycotoxins; sampling variability; sample preparation variability; analytical variability; buyer's risk; false negatives; seller's risk; false positives; operating characteristic curve; sampling plan performance
MeSH headings : Aflatoxins / analysis; Agriculture / methods; Agriculture / standards; Animal Feed / analysis; Consumer Product Safety / standards; Food Analysis / methods; Food Analysis / standards; Food Contamination / analysis; Mycotoxins / analysis; Quality Control; Reproducibility of Results; Risk Assessment / methods; Risk Assessment / standards; Sample Size; Sensitivity and Specificity; Zea mays / chemistry; Zea mays / microbiology
topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Spectroscopy and Chemometric Analyses
TL;DR: Methods to reduce sampling, sample preparation, and analytical variability are discussed and the variability for each step of the mycotoxin test procedure, as measured by the variance statistic, is shown to increase with mycot toxin concentration. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Estimating deoxynivalenol in shelled corn barge lots by measuring deoxynivalenol in corn screenings

Journal of AOAC International, 86(6), 1187–1192.

By: T. Whitaker, J. Richard, F. Giesbrecht, A. Slate & N. Ruiz

Source: NC State University Libraries
Added: August 6, 2018

2003 article

Standardisation of mycotoxin sampling procedures: an urgent necessity

Whitaker, T. B. (2003, April 23). Food Control.

By: T. Whitaker n

topics (OpenAlex): Mycotoxins in Agriculture and Food; Pesticide Residue Analysis and Safety; Plant Disease Management Techniques
Source: Web Of Science
Added: August 6, 2018

2002 article

Sampling Wheat for Deoxynivalenol

Whitaker, T. B., Hagler, W. M., Giesbrecht, F. G., & Johansson, A. S. (2002, January 1). Advances in Experimental Medicine and Biology.

By: T. Whitaker*, W. Hagler n, F. Giesbrecht n & A. Johansson n

Ed(s):

MeSH headings : Algorithms; Analysis of Variance; Calibration; Quality Control; Reproducibility of Results; Trichothecenes / analysis; Triticum / chemistry
topics (OpenAlex): Mycotoxins in Agriculture and Food; Wheat and Barley Genetics and Pathology; Pesticide Residue Analysis and Safety
TL;DR: The variability associated with testing wheat for deoxynivalenol (DON) was measured using a 0.454 kg sample, a Romer mill, 25 g of comminuted subsample and the Romer Fluoroquant analytical method. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Statistical approach for risk assessment of aflatoxin sampling plan used by manufacturers for raw shelled peanuts

Journal of AOAC International, 85(4), 925–932.

By: M. Vandeven, T. Whitaker & A. Slate

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Distribution among sample test results when testing shelled corn lots for fumonisin

Journal of AOAC International, 84(3), 770–776.

By: T. Whitaker, W. Hagler, A. Johansson, F. Giesbrecht & M. Trucksess

Source: NC State University Libraries
Added: August 6, 2018

2001 journal article

Sampling grain shipments to detect genetically modified seed

Journal of AOAC International, 84(6), 1941–1946.

By: T. Whitaker, L. Freese, F. Giesbrecht & A. Slate

Source: NC State University Libraries
Added: August 6, 2018

2001 article

Variability associated with the official USDA sampling plan used to inspect export wheat shipments for Tilletia controversa spores

Whitaker, T. B., Wu, J., Peterson, G. L., Giesbrecht, F. G., & Johansson, A. S. (2001, December 1). Plant Pathology.

By: T. Whitaker n, J. Wu*, G. Peterson *, F. Giesbrecht n & A. Johansson n

author keywords: dwarf bunt; sampling; Tilletia controversa; variability; wheat
topics (OpenAlex): Turfgrass Adaptation and Management; Pesticide Residue Analysis and Safety; Mycotoxins in Agriculture and Food
TL;DR: The variability among the 16 TC test sample results, as measured by the standard deviation, was found to increase with TC concentration and the functional relationship was approximately linear in a full-log plot and regression analysis was used to determine the coefficients of the regression equation. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Performance of three pneumatic probe samplers and four analytical methods used to estimate aflatoxins in bulk cottonseed

Journal of AOAC International, 83(5), 1247–1251.

By: D. Park, T. Whitaker, F. Giesbrecht & H. Njapau

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Sampling agricultural commodities for mycotoxins

Journal of AOAC International, 83(5), 12451245.

By: T. Whitaker

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Sampling, sample preparation, and analytical variability associated with testing wheat for deoxynivalenol

Journal of AOAC International, 83(5), 1285–1292.

By: T. Whitaker, W. Hagler, F. Giesbrecht & A. Johansson

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Testing shelled corn for aflatoxin, Part I: Estimation of variance components

Journal of AOAC International, 83(5), 1264–1269.

By: A. Johansson, T. Whitaker, W. Hagler, F. Giesbrecht, J. Young & D. Bowman

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Testing shelled corn for aflatoxin, Part II: Modeling the observed distribution of aflatoxin test results

Journal of AOAC International, 83(5), 1270–1278.

By: A. Johansson, T. Whitaker, F. Giesbrecht, W. Hagler & J. Young

Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

Testing shelled corn for aflatoxin, Part III: Evaluating the performance of aflatoxin sampling plans

Journal of AOAC International, 83(5), 1279–1284.

By: A. Johansson, T. Whitaker, F. Giesbrecht, W. Hagler & J. Young

Source: NC State University Libraries
Added: August 6, 2018

1999 article

Fate of Dwarf Bunt Fungus Teliospores During Milling of Wheat into Flour

Bechtel, D. B., Wilson, J. D., Eustace, W. D., Behnke, K. C., Whitaker, T., Peterson, G. L., & Sauer, D. B. (1999, March 1). Cereal Chemistry.

By: D. Bechtel*, J. Wilson*, W. Eustace*, K. Behnke*, T. Whitaker n, G. Peterson, D. Sauer *

topics (OpenAlex): Mycotoxins in Agriculture and Food; Listeria monocytogenes in Food Safety; Fermentation and Sensory Analysis
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
15. Life on Land (Web of Science)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Performance of sampling plans to determine aflatoxin in farmers' stock peanut lots by measuring aflatoxin in high-risk- grade components

Journal of AOAC International, 82(2), 264–270.

By: T. Whitaker, W. Hagler & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

Estimating aflatoxin in farmers' stock peanut lots by measuring aflatoxin in various peanut-grade components

Journal of AOAC International, 81(1), 61–67.

By: T. Whitaker, W. Hagler, F. Giesbrecht, J. Dorner, F. Dowell & R. Cole

Source: NC State University Libraries
Added: August 6, 2018

1998 article

Investigations of the Problems of Assessing Aflatoxin Levels in Peanuts

Giesbrecht, F. G., & Whitaker, T. B. (1998, June 1). Biometrics.

By: F. Giesbrecht n & T. Whitaker*

author keywords: aflatoxin concentration; compound gamma; modeling; negative binomial
topics (OpenAlex): Genetics and Plant Breeding; Mycotoxins in Agriculture and Food; Spectroscopy and Chemometric Analyses
TL;DR: A number of probability distributions that have been used to model the occurrence of aflatoxin in peanuts are compared and two distributions, the compound gamma and the negative binomial, are shown to have special appeal in that both can be justified by reasoning from the fundamental biological and stochastic processes that generate the a Flatoxin. (via Semantic Scholar)
UN Sustainable Development Goals Color Wheel
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1998 journal article

Variability associated with testing shelled corn for fumonisin

Journal of AOAC International, 81(6), 1162–1168.

By: T. Whitaker, M. Trucksess, A. Johansson, F. Giesbrecht, W. Hagler & D. Bowman

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Suitability of several statistical models to simulate observed distribution of sample test results in inspections of aflatoxin-contaminated peanut lots

Journal of AOAC International, 79(4), 981.

By: T. Whitaker, F. Giesbrecht & J. Wu

Source: NC State University Libraries
Added: August 6, 2018

1996 journal article

Variability associated with analytical methods used to measure aflatoxin in agricultural commodities

Journal of AOAC International, 79(2), 476.

By: T. Whitaker, W. Horwitz, R. Albert & S. Nesheim

Source: NC State University Libraries
Added: August 6, 2018

1995 journal article

Evaluation of sampling plans used in the United States, United Kingdom, and the Netherlands to test raw shelled peanuts for aflatoxin

Journal of AOAC International, 78(4), 1010.

By: T. Whitaker, J. Springer, P. Defize, W. DeKoe & R. Coker

Source: NC State University Libraries
Added: August 6, 2018

1994 journal article

Effects of sample size and sample acceptance level on the number of aflatoxin-contaminated farmers' stock lots accepted and rejected at the buying point

Journal of AOAC International, 77(6), 1672.

By: T. Whitaker, J. Wu, F. Dowell, W. Hagler & F. Giesbrecht

Source: NC State University Libraries
Added: August 6, 2018

1994 journal article

Predicting the distribution of aflatoxin test results from farmers' stock peanuts

Journal of AOAC International, 77(3), 659.

By: T. Whitaker, F. Giesbrecht, J. Wu, W. Hagler & F. Dowell

Source: NC State University Libraries
Added: August 6, 2018

1994 journal article

Variability associated with sampling, sample preparation, and chemical testing for aflatoxin in farmers' stock peanuts

Journal of AOAC International, 77(1), 107.

By: T. Whitaker, F. Dowell, W. Hagler, F. Giesbrecht & J. Wu

Source: NC State University Libraries
Added: August 6, 2018

1991 article

Variability Associated with Determining Grade Factors and Support Price of Farmers Stock Peanuts1

Whitaker, T. B., Dickens, J. W., & Giesbrecht, F. G. (1991, July 1). Peanut Science.

By: T. Whitaker*, J. Dickens & F. Giesbrecht*

topics (OpenAlex): Peanut Plant Research Studies
Source: NC State University Libraries
Added: August 6, 2018

1990 journal article

Reply to "Reaction to a paper by Whitaker and Dickens on aflatoxin testing plans for shelled peanuts in the U.S. and the export market"

Journal of the Association of Official Analytical Chemists, 73(5), 812.

By: T. Whitaker

Source: NC State University Libraries
Added: August 6, 2018

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