نتایج جستجو برای: pantothenic acid
تعداد نتایج: 747451 فیلتر نتایج به سال:
Since the discovery of vitamin Bs, several biological assay procedures for this factor have been proposed (Gyorgy (1) ; Lunde and Kringstad (2); Wilson and Roy (3) ; Schneider et al. (4) ; Halliday and Evans (5) ; Edgar, El Sadr, and Macrae (6) ; Dimick and Schreffler (7); Reedman et al. (8)). These methods, with the exception of that of Edgar et al., are based upon the cure of acrodynia produc...
Biotin-deficient chickens and ducks developed much more severe infections with Plasmodium lophurae than did non-deficient control animals. While a very mild degree of biotin deficiency sufficed to increase susceptibility, even an extreme degree of pantothenic acid deficiency had no effect. Biotin deficiency also increased the susceptibility of ducks to P. cathemerium. In animals infected with P...
Pantothenate is synthesized in bacteria, fungi and plants, and as vitamin B5 is a dietary requirement in animals. The three-dimensional structures of the four Escherichia coli enzymes involved in the production of pantothenate have been determined. We describe the use of comparative analyses of the sequences and structures to identify distant homologues of the four enzymes in an attempt to unde...
An HPLC/ESI-MS method for the simultaneous determination of taurine and 10 water-soluble vitamins including vitamin B1 (thiamine), B2 (riboflavin), B5 (pantothenic acid), B6 (pyridoxine, and pyridoxal), B8 (biotin), B9 (folic acid), C (ascorbic acid) and PP (nicotinamide and nicotinic acid) in multivitamin tablets was developed and validated. The separation was accomplished on a Johnson Spherig...
to show that this yeast produces riboflavin, nicotinic acid, biotin, thiamin, pyridoxin, _ and the following growth factors p-amino-benzoic acid and folic acid. In the several extracts of the cultures of this torula, each of the above constituents of vitamin B complex and growth factors was found in sufficient quantity to meet the full requirements of_ lactic acid bacteria. Only pantothenic aci...
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