Carotenoids are natural pigments attracting attention of physicists, chemists and biologists due to their multiple functions in the nature. While carotenoids have unusually high extinction coefficients, they do not exhibit adequate emission. This fact has resulted in detailed studies of photophysical and ...
Walter, MH, Strack, D (2011) Carotenoids and their cleavage products: biosynthesis and functions. Nat Prod Rep 28: pp. 663-692Walter MH, Strack D. Carotenoids and their cleav- age products: biosynthesis and functions. Nat Prod Rep 2011; 28:663-92; PMID:21321752; http:// dx.doi.org/...
Their potential interaction with the gut microbiota (GM) has been generally overlooked but may be of relevance, as carotenoids largely bypass absorption in the small intestine and are passed on to the colon, where they appear to be in part degraded into unknown metabolites. These may include ...
Covering: up to mid-2010 This review focuses on plant carotenoids, but it also includes progress made on microbial and animal carotenoid metabolism to better understand the functions and the evolution of these structurally diverse compounds with a common backbone. Plants have evolved isogenes for spe...
Carotenoids in cyanobacteria have two main functions: they serve as light-harvesting pigments in photosynthesis, and they protect against photooxidative damage. Carotenoids are generally hydrophobic isoprenoid compounds that are synthesized in membranes.
[from ground energy level (1) to the S2 state (1)] corresponds to the absorption between 400–500 nm and therefore carotenoids are intensely coloured as yellow, orange or red [19]. The extent of the conjugation and the presence or absence of the functions determine the depth of colors ...
In plants and animals, carotenoids serve as pigments, responsible for the varied and vivid colors present in nature. Because their presence is so obvious, carotenoids were some of the earliest studied phytochemicals (1). Health scientists have identified a wide range of functions, from optical ...
agents and free radicals. This treatment provides a foundation for the description of the main functions of carotenoids and their breakdown products in the second part of Volume 4 and in Volume 5. Topics covered in Volume 4 include various aspects of the roles of carotenoids in colour and col...
This treatment provides a foundation for the description of the main functions of carotenoids and their breakdown products in the second part of Volume 4 and in Volume 5. Topics covered in Volume 4 include various aspects of the roles of carotenoids in colour and colouration, photosynthesis and ...
This complex is the main source of vitamin A that tissues need for their functions (Gottesman et al., 2001). The main distinguishing feature of β-carotene is its ability to accumulate into tissue depots. Further, under the influence of enzymes in the liver and intestines, it turns into ...