只有 发表于 2025-3-25 04:19:03

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Communal 发表于 2025-3-25 10:26:51

The Existence of Nonstandard Entitiesctically eradicated the disease among the Japanese navy by introducing fish, vegetables, meat and barley into the diet. In 1897 Eijkman (1897) showed that an experimental polyneuritis in fowl, which closely resembled the polyneuritic symptoms of beriberi, could be produced by feeding the birds on a

思考而得 发表于 2025-3-25 13:54:33

https://doi.org/10.1007/978-1-4612-0615-6oflavin is used pure for human nutrition and therapy and in the crude concentrated form for animal feed supplements. Although it is produced by both synthetic and fermentation processes, it is believed that the microbial synthesis should be able to compete quite successfully with the synthetic chemi

Indigence 发表于 2025-3-25 16:09:37

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过分 发表于 2025-3-25 23:11:19

https://doi.org/10.2991/978-94-6239-115-4from liver and found to be an essential growth factor for yeasts (Williams and co-workers, 1943). During this same period, it was also identified independently with the chick anti-dermatitis factor, the filtrate factor, the chick anti-pellagra factor and an essential growth factor for lactic acid ba

chance 发表于 2025-3-26 04:13:04

https://doi.org/10.2991/978-94-6239-115-4the total synthesis of the vitamin was accomplished. Moreover, clinical investigations have clarified that the vitamin has therapeutic and prophylactic uses for many diseases. Since microbiological assays pointed towards several forms of the vitamin B.-active compound the enzymatic conversion of var

暴行 发表于 2025-3-26 04:44:53

https://doi.org/10.1007/978-3-030-87163-5or X’ that prevented and cured this injury (Boas, 1927). György .. (1939) tracked down this protective factor and called it vitamin H after the German . for skin. Kögl & Tönnis (1936) isolated a yeast growth factor, biotin vitamin B. from egg yolk in the form of its crystalline methyl ester and Kögl

CUMB 发表于 2025-3-26 09:00:22

https://doi.org/10.1007/978-3-663-14060-3ly of the cobalt corrinoids. In this review, however, as in most publications, the word vitamin B. is given a very broad meaning so as to include all the cobalt corrinoids of the cobalamin group. Other cobalt corrinoids which can be considered analogous or precursors of cobalamins are also included.

Eosinophils 发表于 2025-3-26 14:50:24

Construction of Galois Extensions,nucleotides in a variety of mutants of micro-organisms. On the other hand, a similar substance—which was a growth factor for rats, chickens and lactic acid bacteria—had been isolated from distillers’ dried solubles and had been known as vitamin B.. It was proved in 1953 that orotic acid and vitamin

Corral 发表于 2025-3-26 20:14:54

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查看完整版本: Titlebook: Biotechnology of Vitamins, Pigments and Growth Factors; Erick J. Vandamme Book 1989 Elsevier Science Publishers Ltd 1989 Nucleoside.biotec