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pro vyhledávání: '"M. Humayoun Akhtar"'
Autor:
M. Humayoun Akhtar, Khalid Zaheer
Publikováno v:
Critical reviews in food science and nutrition. 57(6)
Isoflavones (genistein, daidzein, and glycitein) are bioactive compounds with mildly estrogenic properties and often referred to as phytoestrogen. These are present in significant quantities (up to 4–5 mg·g−1 on dry basis) in legumes mainly soyb
Autor:
Michael Bryan, M. Humayoun Akhtar
Publikováno v:
Food Chemistry. 111:255-261
A simple, fast and robust method with minimum steps, small sample size and amounts of solvents was developed to determine major carotenoids contents in processed foods, tablets and gel capsules. The method involves dispersion of the sample in hot wat
Autor:
M. Humayoun Akhtar
Publikováno v:
Journal of Environmental Science and Health, Part B- Pesticides, Food Contaminants, and Agricultural Wastes. 39:835-844
Incurred and fortified salinomycin residues were extracted from chicken tissues and eggs by homogenization, vortexing and by microwave assisted extraction. The salinomycin residues were quantitated by liquid chromatography following postcolumn deriva
Publikováno v:
Journal of Environmental Science and Health, Part B. 31:1061-1084
Studies were conducted to determine the metabolic fate of chloramphenicol (CAP) in White Leghorn using the 14C-labelled compound. In one experiment birds were administered orally via intra-crop, a single dose of 100 mg (equivalent to 66 mg kg-1 body
Publikováno v:
Journal of Chromatography A. 696:123-130
The existing method for analysis of chloramphenicol (CAP) residues in animal tissues was optimized to extract spiked-labelled and unlabelled chloramphenicol from freeze-dried egg albumen and yolks. Although recoveries of CAP were essentially the same
Publikováno v:
Journal of Liquid Chromatography. 17:2971-2981
A simple and rapid analytical method is described for the determination of 3-nitro-4-hydroxyphenylarsonic acid (roxarsone, 3-nitro) in tissues. It involves extraction of 3-nitro from swine tissues by microwave-assisted process (MAP™) followed by hi
Publikováno v:
Journal of Toxicology and Environmental Health. 36:425-430
Publikováno v:
Chemosphere. 24:745-752
The bioavailability of bound residues generated after exhaustive extraction with methanol from liver and intestine of chickens fed diet treated with 3-phenoxybenzoic acid (3-PB acid) was investigated in rats. 3-PB acid was present in the form of boun
Publikováno v:
Experimental Biology and Medicine. 199:13-21
ConclusionsThe use of 14C-labeled pesticides has made us aware of the existence of bound residues in edible tissue and plants. These residues would escape detection by the conventional analytical methods and would result in an underestimation of the
Autor:
M. Humayoun Akhtar
Publikováno v:
Journal of Environmental Science and Health, Part B. 29:365-367