Ruth H. Watkins

Works (5)

Updated: July 5th, 2023 16:04

2001 journal article

Antioxidant properties of evening primrose seed extracts

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 49(9), 4502–4507.

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
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)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Carotenoid composition of marigold (Tagetes erecta) flower extract used as nutritional supplement

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 47(10), 4189–4194.

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
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)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Color improvement and metallo-chlorophyll complexes in continuous flow aseptically processed peas

JOURNAL OF FOOD SCIENCE, 64(6), 987–990.

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

author keywords: chlorophyll; metallo-chlorophyll complexes; zinc; aseptic processing; peas
Source: Web Of Science
Added: August 6, 2018

1999 journal article

Packaging preservation of beta-carotene in sweet potato flakes using flexible film and an oxygen absorber

JOURNAL OF FOOD QUALITY, 22(1), 63–73.

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

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Bixin and norbixin in human plasma: Determination and study of the absorption of a single dose of Annatto Food Color

ANALYST, 122(9), 977–980.

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
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)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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