نتایج جستجو برای: d 73
تعداد نتایج: 628841 فیلتر نتایج به سال:
The effects of mutation of key conserved active-site residues (Tyr-73, Phe-418, Trp-430, Arg-516, Asn-518, His-520 and His-563) of glucose oxidase from Penicillium amagasakiense on substrate binding were investigated. Kinetic studies on the oxidation of beta-D-glucose combined with molecular modelling showed the side chain of Arg-516, which forms two hydrogen bonds with the 3-OH group of beta-D...
The number of dairy cows without access to pasture or sunlight is increasing; therefore, the content of vitamin D in dairy products is decreasing. Ultimately, declining vitamin D levels in dairy products will mean that dairy products are a negligible source of natural vitamin D for humans. We tested the ability of a specially designed UVB lamp to enhance the vitamin D3 content in milk from dair...
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