Works (46)

Updated: August 16th, 2024 13:38

2018 journal article

Stem, Leaf, and Panicle Yield and Nutrient Content of Biomass and Sweet Sorghum

AGRONOMY JOURNAL, 110(5), 1659–1665.

By: A. Heitman n, M. Castillo n, T. Smyth n & C. Crozier n

Contributors: A. Heitman n, M. Castillo n, T. Smyth n & C. Crozier n

TL;DR: Compared with previous reports from grain-type sorghum cultivars, far less has been reported regarding the relative partition of biomass yield and nutrient among the stem, leaf, and panicle components for dedicated bioenergy Sorghum. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: October 19, 2018

2017 journal article

Yield and Nitrogen Removal of Bioenergy Grasses as Influenced by Nitrogen Rate and Harvest Management in the Coastal Plain Region of North Carolina

BioEnergy Research, 11(1), 44–53.

By: Z. Wang n, T. Jot Smyth, C. Crozier*, R. Gehl* & A. Heitman n

author keywords: Biomass yield; Harvest frequency; Switchgrass; Miscanthus
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: Web Of Science, Crossref
Added: August 6, 2018

2015 journal article

Quantitative Study of the Interfacial Adsorption of Cellullase to Cellulose

JOURNAL OF PHYSICAL CHEMISTRY C, 119(25), 14160–14166.

By: G. Hu n, J. Heitmann n, B. Zhong*, L. Lucia n & D. Argyropoulos n

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2012 journal article

Dimensional and hygroexpansive behaviors of cellulose microfi brils (MFs) from kraft pulp-based fibers as a function of relative humidity

HOLZFORSCHUNG, 66(8), 1001–1008.

By: J. Lee n, J. Pawlak n & J. Heitmann n

author keywords: atomic force microscopy (AFM); cellulose microfi brils (MF); dimensional changes; hygroexpansion
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Longitudinal and concurrent dimensional changes of cellulose aggregate fibrils during sorption stages

MATERIALS CHARACTERIZATION, 61(5), 507–517.

By: J. Lee n, J. Pawlak n & J. Heitmann n

author keywords: Atomic force microscopy; Cellulose aggregate fibrils; Dimensional changes; Humidity; Hygro-expansivity; Longitudinal contraction; Relaxation
UN Sustainable Development Goal Categories
15. Life on Land (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Monitoring Cellulase Protein Adsorption and Recovery Using SDS-PAGE

Industrial & Engineering Chemistry Research, 49(18), 8333–8338.

By: G. Hu n, J. Heitmann n, O. Rojas n, J. Pawlak n & D. Argyropoulos n

TL;DR: The cellul enzyme system from Trichoderma reesei had a higher adsorption on all substrates studied than the cellulase system from Aspergillius niger, and higher pH favored desorption from the substrate studied. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2009 journal article

Importance of Cellulosic Fines Relative to the Dewatering Rates of Fiber Suspensions

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 48(20), 9106–9112.

By: H. Chen n, A. Park n, J. Heitmann n & M. Hubbe n

Source: Web Of Science
Added: August 6, 2018

2009 journal article

In Situ Monitoring of Cellulase Activity by Microgravimetry with a Quartz Crystal Microbalance

JOURNAL OF PHYSICAL CHEMISTRY B, 113(44), 14761–14768.

By: G. Hu n, J. Heitmann n & O. Rojas n

MeSH headings : Biosensing Techniques; Cellulase / chemistry; Cellulase / metabolism; Cellulose / chemistry; Cellulose / metabolism; Gold / chemistry; Hydrolysis; Kinetics; Quartz / chemistry; Temperature
TL;DR: Quartz crystal microgravimetry was used to investigate the interactions between cellulase enzymes and model cellulose substrates and cellulase adsorption was found to be nonspecific and irreversible on gold-, PVAm-, and cellulose-coated quartz crystal sensors. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Quantification of Cellulase Activity Using the Quartz Crystal Microbalance Technique

ANALYTICAL CHEMISTRY, 81(5), 1872–1880.

By: G. Hu n, J. Heitmann n & O. Rojas n

MeSH headings : Cellulase / chemistry; Cellulase / metabolism; Cellulose / metabolism; Crystallization; Electrochemistry / methods; Equipment Design; Models, Chemical; Nanotechnology; Quartz / chemistry; Surface Properties
TL;DR: A new method to determine the activity of cellulase has been developed using a quartz crystal microbalance (QCM) technique, and it is shown that the QCM technique provides results closer to those obtained by measuring the actual reducing sugars. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Feedstock pretreatment strategies for producing ethanol from wood, bark, and forest residues

BioResources, 3(1), 270–294.

By: G. Hu, J. Heitmann & O. Rojas

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

2007 journal article

A simple method to tune the gross antibacterial activity of cellulosic biomaterials

CARBOHYDRATE POLYMERS, 69(4), 805–810.

By: L. Adamopoulos n, J. Montegna*, G. Hampikian*, D. Argyropoulos n, J. Heitmann n & L. Lucia n

author keywords: antibacterial materials; cellulose; fatty acids
TL;DR: The potential application of these materials in the biomedical field appears promising as they displayed a broad spectrum of antibacterial activity and could be tuned simply by grossly changing the surface area of the cellulosic surface topology. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Local morphological and dimensional changes of enzyme-degraded cellulose materials measured by atomic force microscopy

CELLULOSE, 14(6), 643–653.

By: J. Lee n, J. Heitmann n & J. Pawlak n

author keywords: atomic force microscopy; cellulases; cellulose nano-crystal; cellulose microfibrils; cellulose aggregate fibrils; deformations; dimensional changes; enzymatic hydrolysis; relative humidity; moisture
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

Rheology of carboxymethyl cellulose solutions treated with cellulases

BioResources, 2(1), 20–33.

By: J. Lee, J. Heitmann & J. Pawlak

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

2006 journal article

A colloidal probe microscopy study of cellulose/gypsum interactions

MATERIALS CHARACTERIZATION, 59(2), 144–150.

By: J. Bastidas n, J. Pawlak n, R. Venditti n, J. Heitmann n, M. Hubbe n & J. Kadla*

author keywords: gypsum; cellulose; wallboard; colloidal probe microscopy; crystal faces; adhesion; interfacial surface energy
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Colloidal effects of acrylamide polyampholytes - Part 1. Electrokinetic behavior

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 281(1-3), 74–81.

By: T. Sezaki n, M. Hubbe n, J. Heitmann n, D. Argyropoulos n & X. Wang n

author keywords: polyampholytes; microelectrophoresis; streaming current; potentiometric titrations; isoelectric pH; amphoteric; polyelectrolytes
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Colloidal effects of acrylamide polyampholytes - Part 2: Adsorption onto cellulosic fibers

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 289(1-3), 89–95.

By: T. Sezaki n, M. Hubbe n, J. Heitmann n & D. Argyropoulos n

author keywords: adsorption; colloidal titrations; polyampholytes; amphoteric polymers; streaming current; iso-electric; pH; salt
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

Technique for the measurement of dimensional changes of natural microfibril materials under variable humidity environments

Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing, 445, 632–640.

By: J. Lee n, J. Heitmann n & J. Pawlak n

UN Sustainable Development Goal Categories
Sources: NC State University Libraries, NC State University Libraries
Added: August 6, 2018

2006 journal article

The Positive Pulse Jar (PPJ): A flexible device for retention studies

Paperi Ja Puu = Paper and Timber, 88(1), 39–45.

By: M. Hubbe, T. Tripattharanan, J. Heitmann & R. Venditti

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

2004 journal article

Dependency of polyelectrolyte complex stoichiometry on the order of addition - 2. Aluminum chloride and poly-vinylsulfate

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 246(1-3), 71–79.

By: J. Chen n, M. Hubbe n, J. Heitmann n, D. Argyropoulos n & O. Rojas n

author keywords: electrokinetics; streaming current; aluminum; polyelectrolyte complexation; titrations; stoichiometry; order of addition; polynuclear aluminum ion
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 journal article

Effect of idealised flow conditions on retention aid performance. Part 1, Cationic acrylamide copolymer

Appita Journal, 57(5), 404–410.

By: T. Tripattharanan, M. Hubbe, R. Venditti & J. Heitmann

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

2004 journal article

Effect of idealised flow conditions on retention aid performance. Part 2, Polymer bridging, charged patches, and charge neutralisation

Appita Journal, 57(6), 448–454.

By: T. Tripattharanan, M. Hubbe, J. Heitmann & R. Venditti

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

2004 journal article

Effects of sugar addition before drying on the wet flexibility of redispersed kraft fibres

Journal of Pulp and Paper Science, 30(1), 29–34.

By: M. Zhang, M. Hubbe, R. Venditti & J. Heitmann

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

2004 journal article

Refining to overcome effects of drying unbleached Kraft fibers in the presence or absence of sugar

Progress in Paper Recycling, 13(2), 5–12.

By: M. Zhang, M. Hubbe, R. Venditti & J. Heitmann

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

2004 journal article

The effect of paper additives on toner agglomeration during the recycling process

Progress in Paper Recycling, 13(14), 16–23.

By: J. Chen, J. Heitmann, H. Chang, M. Hubbe & R. Venditti

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

2003 journal article

Dependency of polyelectrolyte complex stoichiometry on the order of addition. 1. Effect of salt concentration during streaming current titrations with strong poly-acid and polybase

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 223(1-3), 215–230.

By: J. Chen n, J. Heitmann n & M. Hubbe n

author keywords: electrokinetics; streaming current; polyelectrolyte complexation; titrations; stoichiometry
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Can recycled kraft fibres benefit from chemical addition before they are first dried?

Appita Journal, 55(2), 135–144.

By: M. Zhang, M. Hubbe, R. Venditti & J. Heitmann

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

2001 conference paper

Effect of chemical pretreatments of never-dried pulp on the strength of recycled linerboard

Proceedings, TAPPI Papermakers Conference. TAPPI.

By: M. Zhang, M. Hubbe, R. Venditti & J. Heitmann

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

2001 patent

Method for making dissolving pulp from paper products containing hardwood fibers

Washington, DC: U.S. Patent and Trademark Office.

By: L. Jackson, T. Joyce & J. Heitmann

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

2000 journal article

Conventional kraft pulping using enzyme pretreatment technology: role of diffusivity in enhancing pulp uniformity

Paperi Ja Puu = Paper and Timber, 82(2), 114–119.

By: C. Jacobs-Young, R. Gustafson & J. Heitmann

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

2000 journal article

Influence of lignin and its degradation products on enzymatic hydrolysis of xylan

JOURNAL OF BIOTECHNOLOGY, 80(3), 241–247.

By: F. Kaya*, J. Heitmann* & T. Joyce*

author keywords: hemicellulase; hydrolysis; lignin; black liquor; degradation; circular dichroism
MeSH headings : Biodegradation, Environmental; Biotechnology / methods; Circular Dichroism; Enzyme Activation / drug effects; Hydrolysis / drug effects; Lignin / metabolism; Lignin / pharmacology; Paper; Xylans / metabolism; Xylosidases / metabolism
TL;DR: The influence of lignin, lign in model compounds, and black liquor from the kraft pulping process on the hydrolysis of xylan by xylanase was investigated and circular dichroism spectroscopy indicated a change in the structure of x Dylanase in the presence of black liquor. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2000 conference paper

Loss of bonding strength dye to drying and repulping of Kraft fibers: Effects of chemical additives

In Y.-C. Su & E. I. C. Wang (Eds.), Proceedings, International Symposium on Environmentally Friendly and Emerging Technologies for a Sustainable Pulp and Paper Industry, Taipei, Taiwan, April 25-27, 2000. Taipei, Taiwan: Taiwan Forestry Research Institute; Taiwan Technical Association of Pulp and Paper Industry.

By: M. Zhang, M. Hubbe, R. Venditti & J. Heitmann

Ed(s): Y. Su & . E. I. C. Wang

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

1999 journal article

Adsorption of hemicellulases onto bleached kraft fibers

JOURNAL OF BIOTECHNOLOGY, 67(1), 67–75.

By: P. Gerber n, J. Heitmann n, T. Joyce*, J. Buchert* & M. Siika-aho*

author keywords: adsorption; enzymes; hemicellulases; xylanase; mannanase; kraft pulps
TL;DR: The presence of a cellulose binding domain was the main factor which influenced the adsorption of two Trichoderma reesei mannanases and a Trichodma longibrachiatum xylanase onto bleached kraft fibers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Effect of dissolved lignin and related compounds on the enzymatic hydrolysis of cellulose model compound

Cellulose Chemistry and Technology, 33(3-4), 203–213.

By: F. Kaya, J. Heitmann & T. Joyce

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

1999 patent

Method of cleaning papermaking felts with enzymes

Washington, DC: U.S. Patent and Trademark Office.

By: J. Heitmann & T. Joyce

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

1998 chapter

Conventional kraft pulping using enzyme pretreatment technology: Role of chip thickness, specie and enzyme combinations

In Innovative advances in the forest products industries: the 1997 Forest Products Symposium (pp. 1–15). New York: American Institute of Chemical Engineers.

By: C. Jacobs-Young, J. Heitmann & R. Venditti

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

1997 journal article

Adsorption of a Trichoderma reesei endoglucanase and cellobiohydrolase onto bleached Kraft fibres

CELLULOSE, 4(4), 255–268.

By: P. Gerber n, T. Joyce n, J. Heitmann n, M. Siika-Aho & J. Buchert

author keywords: biotechnology; cellulase; endoglucanase; cellobiohydrolase; adsorption
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Purification and characterization of xylanases from Trichoderma

BIORESOURCE TECHNOLOGY, 61(2), 127–140.

By: P. Gerber n, J. Heitmann n & T. Joyce*

author keywords: purification; enzymes; xylanase; chromatography
TL;DR: This review organizes current techniques for xylanase purification and examines the properties of xylanases that have been previously characterized and a strategy for the isolation of an endoxylanase from a commercial preparation of T. longibrachiatum is developed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1997 conference paper

Scanning electron microscopy analysis of fiber free toner agglomeration

1997 recycling symposium: Proceedings, 501–505. Chicago: Tappi Press.

By: J. Small, R. Venditti & J. Heitmann

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

1997 chapter

Stickies related research at North Carolina State University

In Paper recycling challeng (Vol. 1, pp. 45–49). Appleton, Wisc: Doshi & Associates.

By: R. Venditti, E. Andrews, H. Chang & J. Heitmann

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

1996 patent

Deinking of xerographic printed wastepaper using long chain alcohol

Washington, DC: U.S. Patent and Trademark Office.

By: H. Chang, T. Wu & J. Heitmann

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

journal article

Measurement and impact of charge: A practical guide

Hubbe, M. A., Chen, J., & Heitmann, J. A. Solutions! (Norcross, Ga.), 87(11), 47–49.

By: M. Hubbe, J. Chen & J. Heitmann

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

conference paper

Measurement of colloidal charge in the paper mill by streaming current

Chen, J., Hubbe, M. A., & Heitmann, J. A. Proceedings, TAPPI Papermakers Conference, 2001. Atlanta, GA: TAPPI Press.

By: J. Chen, M. Hubbe & J. Heitmann

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

journal article

Permeability reduction phenomena in packed beds, fiber mats, and wet webs of paper exposed to flow of liquids and suspensions: A review

Hubbe, M. A., Chen, H., & Heitmann, J. A. BioResources, 4(1), 405–451.

By: M. Hubbe, H. Chen & J. Heitmann

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

journal article

Review of factors affecting the release of water from cellulosic fibers during paper manufacture

Hubbe, M. A., & Heitmann, J. A. BioResources, 2(3), 500–533.

By: M. Hubbe & J. Heitmann

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

journal article

Water release from fractionated stock suspensions. Part 1 - Effects of the amounts and types of fiber fines

Cole, C. A., Hubbe, M. A., & Heitmann, J. A. TAPPI Journal, 7(7), 28–32.

By: C. Cole, M. Hubbe & J. Heitmann

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

journal article

Water release from fractionated stock suspensions. Part 2, Effects of consistency, flocculants, shear, and order of mixing

Hubbe, M. A., Heitmann, J. A., & Cole, C. A. TAPPI Journal, 7(8), 14–19.

By: M. Hubbe, J. Heitmann & C. Cole

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

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