Thioctic Acid in Complete and Deficient Diets for Chicks
نویسندگان
چکیده
منابع مشابه
Metabolism of thioctic acid in algae.
Thioctic acid labeled with sulfur-35 has been p repa red and i t s metabol ism b y algae has been studied. It i s converted by the algae into a number of f o r m s , all of which upon hydrolysis yield either the disulfide o r i t s sulfoxide. One of these constituted the major portion of the labeled ma te r i a l in the chlorop1;~sts . Aerobic metabolism for some minutes i s required to produce...
متن کاملMetabolism in vitro of 25-hydroxycholecalciferol in chicks fed on phosphorus-deficient diets.
1. Three groups of 10-days-old chicks were fed on one of three diets having phosphorus contents of 0.08 mol/kg, 0.14 mol/kg or 0.21 mol/kg. Ten days later duodenal calcium absorption by the ligated loop technique in vivo, and plasma calcium and phosphorus concentrations, were measured. In addition the metabolism in vitro of 25-hydroxycholecalciferol [25-(OH)D3] by kidney homogenates was studied...
متن کاملThioctic Acid: Physics, Chemistry, and Biology
This paper consti tutes a review of the exper imenta l events that l ed o u r l abo ra to ry to focus i t s attention on thioctic acid , a d i scuss ion of some of the pu re ly chemica l and physical p roper t ies of thioctic acid that this awakened i n t e r e s t p rompted us to invest igate , and a br ief descr ip t ion of some of o u r recen t biological investigations with thioctic acid.
متن کاملExcess dietary lysine increases growth of chicks fed niacin-deficient diets, but dietary quinolinic acid has no niacin-sparing activity.
Catabolism of Trp and Lys produces alpha-ketoadipic acid as an intermediary metabolite. An alternate pathway of Trp turnover leads to NAD synthesis. We hypothesized that excess Lys might improve the conversion of Trp to niacin by causing a buildup of alpha-ketoadipic acid, thereby endproduct inhibiting the main Trp catabolic pathway and resulting in more niacin synthesis from Trp. Six bioassays...
متن کاملRemoval of thioctic acid from enzymes.
The r81e of thioctic acid in t’he oxidative decarboxylation of or-keto acids is now well established (1, 2). This was accomplished largely by studies with microbial cells grown essentially free of the cofactor. In some instances (2) it has been possible t,o separate the coenzyme from microbial enzymes involved in t,hioctic acid metabolism by extensive purification procedures. Although tjhe dire...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1957
ISSN: 0032-5791
DOI: 10.3382/ps.0360657