Ruth H. Watkins

Works (5)

Updated: July 5th, 2023 16:04

2001 article

Antioxidant Properties of Evening Primrose Seed Extracts

Birch, A. E., Fenner, G. P., Watkins, R., & Boyd, L. C. (2001, August 30). Journal of Agricultural and Food Chemistry.

By: A. Birch n, G. Fenner n, R. Watkins n & L. Boyd n

author keywords: evening primrose; antioxidants; oxidation
MeSH headings : Antioxidants / metabolism; Emulsions; Fatty Acids, Essential / analysis; Fatty Acids, Essential / chemistry; Linoleic Acids; Oenothera biennis; Oxidation-Reduction; Plant Extracts; Plant Oils; Seeds; Time Factors; gamma-Linolenic Acid
topics (OpenAlex): Phytochemicals and Antioxidant Activities; Free Radicals and Antioxidants; Essential Oils and Antimicrobial Activity
TL;DR: The SE extract was more effective in controlling the oxidation in the oil-in-water model system than in the bulk oil system, and at higher concentrations the SE was as effective as BHT, but it required higher concentrations because of its lack of purity. (via Semantic Scholar)
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6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 article

Carotenoid Composition of Marigold (Tagetes erecta) Flower Extract Used as Nutritional Supplement

Hadden, W. L., Watkins, R. H., Levy, L. W., Regalado, E., Rivadeneira, D. M., Breemen, R. B., & Schwartz, S. J. (1999, September 15). Journal of Agricultural and Food Chemistry.

By: W. Hadden n, R. Watkins n, L. Levy n, E. Regalado n, D. Rivadeneira n, R. Breemen  n, S. Schwartz n

author keywords: lutein; marigold (Tagetes erecta); poultry; feed colorant
MeSH headings : Animal Feed; Animals; Carotenoids / analysis; Chromatography, High Pressure Liquid; Dietary Supplements; Food Coloring Agents; Humans; Nutritive Value; Plant Extracts / chemistry; Poultry
topics (OpenAlex): Antioxidant Activity and Oxidative Stress; Plant biochemistry and biosynthesis; Phytochemicals and Antioxidant Activities
TL;DR: This compositional determination is important for the application of marigold extract in nutritional supplements and increases its value as a poultry feed colorant because it contains more biologically useful lutein compounds than previously believed. (via Semantic Scholar)
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2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 article

Color Improvement and Metallo‐chlorophyll Complexes in Continuous Flow Aseptically Processed Peas

Canjura, F. L., Watkins, R. H., & Schwartz, S. J. (1999, November 1). Journal of Food Science.

By: F. Canjura n, R. Watkins n & S. Schwartz n

author keywords: chlorophyll; metallo-chlorophyll complexes; zinc; aseptic processing; peas
topics (OpenAlex): Postharvest Quality and Shelf Life Management; Potato Plant Research; Plant Micronutrient Interactions and Effects
Source: Web Of Science
Added: August 6, 2018

1999 article

PACKAGING PRESERVATION OF β‐CAROTENE IN SWEET POTATO FLAKES USING FLEXIBLE FILM AND AN OXYGEN ABSORBER

EMENHISER, C. U. R. T., WATKINS, R. U. T. H. H., SIMUNOVIC, N. A. D. A., SOLOMONS, N. O. E. L., BULUX, J. E. S. U. S., BARROWS, J. O. H. N., & SCHWARTZ, S. T. E. V. E. N. J. (1999, March 1). Journal of Food Quality.

By: C. Emenhiser n, R. Watkins n, N. Simunovic n, N. Solomons, J. Bulux, J. Barrows*, S. Schwartz*

topics (OpenAlex): Effects and risks of endocrine disrupting chemicals; Advanced Chemical Sensor Technologies; Meat and Animal Product Quality
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Source: Web Of Science
Added: August 6, 2018

1997 article

Bixin and Norbixin in Human Plasma: Determination and Study of the Absorption of a Single Dose of Annatto Food Color

Levy, L. W., Regalado, E., Navarrete, S., & Watkins, R. H. (1997, January 1). The Analyst.

By: L. Levy*, E. Regalado, S. Navarrete & R. Watkins*

author keywords: bixin; norbixin; carotenoids; intestinal absorption; human plasma; high-performance liquid chromatography
MeSH headings : Carotenoids / analysis; Carotenoids / blood; Carotenoids / metabolism; Food Coloring Agents / analysis; Humans; Intestinal Absorption; Plants, Edible; Stereoisomerism
topics (OpenAlex): Dye analysis and toxicity; Biochemical Analysis and Sensing Techniques; Antioxidant Activity and Oxidative Stress
TL;DR: A procedure was developed for the detection and determination of bixin and norbixin in human plasma by reversed-phase HPLC with a sensitivity limit of 5 micrograms l-1 and significant individual variations were observed. (via Semantic Scholar)
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UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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