Detail of "6983-79-5"

Reference

Studies on the analysis of natural dyes

Studies on the analysis of natural dyes. I. Analysis of Annatto extract and Gardenia yellow dye in foods and natural dye preparations. Nishizawa, Makoto; Chonan, Takao; Sekijo, Ikuyo; Sugii, Takao (Hokkaido Inst. Pub. Health, Sapporo 060, Japan). Hokkaidoritsu Eisei Kenkyushoho, (33), 28-34 (Japanese) 1983. CODEN: HOEKAN. ISSN: 0441-0793. DOCUMENT TYPE: Journal CA Section: 17 (Food and Feed Chemistry) Bixin (I) [6983-79-5], norbixin (II) [542-40-5], crocin (III) [39465-00-4], and geniposide (IV) [24512-63-8] in natural dye prepns. and foods were detd. by high-performance liq. chromatog. (HPLC). The HPLC was performed on a Nucleosil 5 C18 column , with MeCN-H2O-HOAc solvent system (:1), for I and II, and MeCN-H2O solvent system ( for III and for IV),using visible (for I, II, and III) and UV (for IV) detection. I and II in Annatto [1393-63-1] and III and IV in Gardenia yellow dye [89382-88-7] were detected in the range of 1.15-109.35, 4.00-34.85, 0.20-12.34, and 34.3-3-220.7 mg/g, resp. I, II, and IV were detected in some foods (margarine, confectionery, fish products, and Chinese noodle). However, III was easily decomp. in foods, esp. 1393-63-1 and 542-40-5 are just another two chemicals used in this study. in Chinese noodle. .

Determination of the pigmenting carotenoids in feeds and premixes for laying hens and broilers

Determination of the pigmenting carotenoids in feeds and premixes for laying hens and broilers. Manz, Ulrich; Vuilleumier, Jean Paul (F. Hoffmann-La Roche und Co., A.-G., Basel, Switz.). Z. Lebensm.-Unters.There are some reagents with their cas registry numbers 3604-90-8 and 1109-11-1 are used in this study. Forsch., 163(1), 21-4 (German) 1977. CODEN: ZLUFAR. DOCUMENT TYPE: Journal CA Section: 17 (Foods) A method for the quant. detn. of the main carotenoids, such as bixin [6983-79-5], canthaxanthin [514-78-3], capsanthin [465-42-9], .beta.-carotene [7235-40-7], citranaxanthin [3604-90-8], lutein [127-40-2], zeaxanthin [144-68-3], and .beta.-apo-8-carotenoic acid Et ester [1109-11-1], in feeds and premixes for laying hens and broilers is described. The method has, compared to the known anal. procedures, several advantages: differentiation between lutein and zeaxanthin, which have different pigmentation properties; redn. of distribution errors for added carotenoids by increasing sample wts.; individual detn. of added carotenoids which have different pigmentation activities. .