Studies on carotenoids
نویسندگان
چکیده
منابع مشابه
Studies on carotenoids in watermelon flesh
Carotenoids are responsible for the different flesh colors in watermelon fruit, such as white, salmon yellow, orange, pale yellow, canary yellow, crimson red, and scarlet red. In red-fleshed watermelons lycopene constitutes the major pigment and -carotene the secondary. The predominant carotenoid in yellow-fleshed watermelon is neoxanthin. Lycopene content in watermelon is related to genotype ...
متن کاملStudies on animal carotenoids; carotenoids of the brown trout (Salmo trutta Linn.).
This paper presents an analysis of the carotenoids of the brown trout (Salmo trutta Linn.), being the first of a series designed to throw light on the general functions of this class of pigments in animals. Apart from the role of the carotenoid derivative vitamin A as a component of visual purple, and the importance of some carotenes as vitamin A precursors, precise knowledge is almost entirely...
متن کاملStructural studies on bacterial carotenoids and their biosynthetic implications.
Detailed studies of the properties of carotenoids isolated from diphenylamine-inhibited cultures of Rhodospirillum rubrum have revealed a number of novel structures which indicate new features of carotenoid biosynthesis in the photosynthetic bacteria. The dehydrogenation of phytoene to coloured carotenoids occurs by a sequence which is different from that in higher plants in that 7,8,11,12-tetr...
متن کاملSome Recent Studies on Carotenoids and Related Compounds
Studies on models synthesized by stereochemically controlled routes show that the central triene chromophore in the common cis isomer of phytoene has the irans,cis,trans configuration, and that the phytoene from Flavobacterium dehydrogenans consists mainly of the all-trans isomer. Capsorubin, with the natural configuration at all four chiral centres, has been synthesized from (+)-camphor. Sever...
متن کاملStudies on the reaction of certain carotenoids with antimony trichloride.
Since both carotene and vitamin A yield a blue color with SbCla, attempts to determine t,he vitamin quantitatively in a mixture depend, among other things (1, 2)) upon the accuracy with which the blue color due to carotene can be estimated. Values published for the blue equivalent of carotene range from 3.5 to 13, calculated as micrograms of apparent vitamin A per 100 y of carotene (3). This di...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1938
ISSN: 0306-3283
DOI: 10.1042/bj0321566