Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Gerald Angyal"'
Autor:
H S Strandler, C Wurz, N Doreanu, C Wo, C Hudson, J Martin, Gerald Angyal, Jayashree Arcot, M Castelli, John Szpylka, L Rosner, Carol A. Hudson, H van den Berg, P Lawrence, Pamela M. Keagy, Jeanne I. Rader, Jonathan W. DeVries, Robert W. Peace
Publikováno v:
Journal of AOAC INTERNATIONAL. 88:5-15
In 1996, U.S. Food and Drug Administration regulations mandated the fortification of enriched cereal-grain products with folic acid, thereby emphasizing the need for validated methods for total folates in foods, particularly cereal products. The AOAC
Publikováno v:
Food Chemistry. 58:373-379
Consumers' interest in dietary guidelines advising them to reduce their intake of fat has contributed to the development of new low- and fat-free margarine-like products. We measured vitamin E (α-tocopherol) and vitamin A (retinol and /gb-carotene)
Publikováno v:
Food Chemistry. 58:149-160
There is increasing interest in the fatty acid composition, including levels of trans fatty acids, of foods. The trans fatty acid content of American diets is increasingly studied because of reported adverse effects of trans fatty acids on risk of co
Publikováno v:
Journal of the American Oil Chemists’ Society. 73:1699-1705
The totaltrans fatty acid content of 18 food products was determined, after acid hydrolysis, extraction and methylation of fatty acids, by gas chromatography with a polar 100% cyanopropylsiloxane capillary column and by single-bounce horizontal atten
Autor:
Alan J. Sheppard, Carol M. Weaver, Roger G. O'Dell, Gerald Angyal, Martin P. Bueno, Jeanne I. Rader
Publikováno v:
Food Chemistry. 54:419-427
The new definition of total fat in FDA regulations implementing the Nutrition Labeling and Education Act of 1990 necessitates the quantitation of all lipid fatty acids and the summation of their triglyceride equivalents. A gas-liquid Chromatographic
Publikováno v:
Journal of AOAC INTERNATIONAL. 76:682-690
A microbiological technique was developed for quantitating niacin by determining microbial growth rates in response to the amount of vitamin available. Unlike the current official AOAC method, the new procedure for niacin measured the growth rates du
Autor:
Henry S Kim, Gerald Angyal
Publikováno v:
Journal of AOAC INTERNATIONAL. 76:414-417
A reversed-phase liquid chromatographic (LC) method coupled with precolumn derivatization of L-tryptophan with phenylisothiocyanate was compared to the AOAC microbiological method for determining L-tryptophan in tablets and capsules. For the microbio
Autor:
Kenneth L Simpson, Peter Reich, Younghan Koh, Bruce W Hollis, Juan F Muniz, H Michael Wehr, Eugene T Mcgarrahan, Martin P BUENO, Melina Villalobos, Gerald Angyal, Phillip Defibaugh, Jeffrey Smith, James T Tanner
Publikováno v:
Journal of AOAC INTERNATIONAL. 71:607-610
This paper summarizes work done by 4 different laboratories on the vitamin content of milk. Riboflavin, vitamin A, and vitamin D were assayed in whole, 2%, and skim milks that had been fortified. In general, the adherence to label claim decreased wit
Autor:
Milan Ihnat, Wayne R. Wolf, Gerald Angyal, Carol M. Weaver, James T. Tanner, Martin P. Bueno, Jeffrey S. Smith
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 332:701-703
There is a need for food based reference materials characterized for organic nutrient content, since very few are presently available. A series of twelve food matrices has been prepared by Agriculture Canada as Candidate Reference Materials. This pap
Autor:
Gerald Angyal, Melina C. Villalobos, Jeffrey S. Smith, Phillip W. Defibaugh, Martin P. Bueno, Rolf Zeisler, Wayne R. Wolf, James T. Tanner, G. V. Iyengar
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 326:696-698
The search for organic nutrient standards is approached from two sides. On the one hand, useful standards are selected from currently available SRMs; on the other hand, a representative food is developed representing the daily intake of a typical con