Methods are given for determination of vitamin D 2 and K 1 in presence of rutin added as stabilizer, and applied to assessment of the rate of breakdown of these vitamins when exposed to ultraviolet light. Because the absorption maxima of these vitamins, rutin and some of the decomposition ...
The concentrate was composed of (% of DM) 23.2 rye, 21 rapeseed extraction meal, 18 corn gluten feed, 15 milled barley grain, 12 rye bran, 4.5 beet pulp, 4 corn, and 1.05 calcium carbonate, with the addition of 7.0 IU of vitamin A, 850 IU of vitamin D3, and 7.5 mg of copper ...
A procedure is described for the separation and determination of the vitamin P factors rutin, hesperidin, and naringin. The flavonoids are exhaustive extracted from orange juice of high pulp content by means of ethyl acetate. The concentrate is subjected to thin-layer chromatography on polyamide ...