Results 141 to 150 of about 1,269 (176)
The Occurrenee of β-Carotene and "Phytofluene" in the Wood of Acacia acuminata
Australian Journal of Scientific Research Series A: Physical Sciences, 1949 The separation from extracts of Acacia acuminata, by chromatographic procedures, of β-carotene and a colourless fluorescent oil of similar adsorption properties is described. On the basis of its absorption spectrum and other properties the fluorescent oil is considered to be closely related to and possibly identical with the colourless carotenoid ...
P Stanley, VM Trikojus
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Phytofluene as a Highly Efficient UVA Photosensitizer of Singlet Oxygen Generation
Biochemistry (Moscow), 2020Phytoene and phytofluene - uncolored C40 carotenoids with short chain of conjugated double bonds (3 and 5, respectively) - are known to be universal precursors in biosynthesis of colored carotenoids in photosynthesizing organisms. It is commonly recognized that C40 carotenoids are photoprotectors of cells and tissues.
A A Ashikhmin +2 more
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Food & Function, 2020 The addition of onions into tomato purees favored E/Z-isomerization of PT and PTF during heating tomato-based sauces.
Yu, Jiahao +4 more
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A Carotenoid Algal Preparation Containing Phytoene and Phytofluene Inhibited LDL Oxidation In Vitro
Plant Foods for Human Nutrition, 2008The antioxidative effect of the carotenoids phytoene and phytofluene in biological systems has not yet been studied. We therefore sought to investigate the effect of these carotenoids, isolated from the alga Dunaliella bardawil, in a biological system and used the in vitro low density lipoprotein (LDL) oxidation method to assay their antioxidative ...
Aviv Shaish +2 more
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Phytoene, phytofluene and ζ-carotene isomers from a Scenedesmus obliquus mutant
Phytochemistry, 1977Abstract A number of mutant strains of the green alga, Scenedesmus obliquus , when grown in the dark, accumulated ζ-carotene as their major carotenoid together with appreciable concentrations of phytoene and phytofluene. The phytoene was almost entirely the 15- cis isomer, and phytofluene was also present mainly as the 15- cis form, whereas the ζ ...
George Britton, Roy Powls
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Journal of Nutritional Biochemistry, 2002
Dunaliella bardawil, a beta-carotene-accumulating alga was treated by the bleaching herbicide norflurazon to select sub-species rich with a mixture of 9-cis and all-trans stereoisomers of phytoene and phytofluene. The present study determines the bioavailability of phytoene and phytofluene with their stereoisomers in rats fed on a diet supplemented ...
Moshe J Werman +2 more
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Dunaliella bardawil, a beta-carotene-accumulating alga was treated by the bleaching herbicide norflurazon to select sub-species rich with a mixture of 9-cis and all-trans stereoisomers of phytoene and phytofluene. The present study determines the bioavailability of phytoene and phytofluene with their stereoisomers in rats fed on a diet supplemented ...
Moshe J Werman +2 more
exaly +3 more sources
Archives of Microbiology, 1977
Considerable changes in pigment composition occur during a period of 10 h when dark-grown cultures of PG1, a zeta-carotenic strain of Scenedesmus obliquus, are illuminated. These changes are consistent with a biosynthetic pathway in which 15-cis-phytoene is converted via 15-cis-phytofluene and 15-cis-zeta-carotene into all-trans-zeta-carotene and trans-
Roy Powls, George Britton, Powls Roy
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Considerable changes in pigment composition occur during a period of 10 h when dark-grown cultures of PG1, a zeta-carotenic strain of Scenedesmus obliquus, are illuminated. These changes are consistent with a biosynthetic pathway in which 15-cis-phytoene is converted via 15-cis-phytofluene and 15-cis-zeta-carotene into all-trans-zeta-carotene and trans-
Roy Powls, George Britton, Powls Roy
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Sustainability, 2023 Ascertaining sustainable endogenous nutrients for long-term healthy skin from the nutritional perspective of changing consumers, is an interesting method to prevent photoaging symptoms which are the main cause of skin aging.
Bohee So, Ki Han Kwon
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Skin Carotenoids in Public Health and Nutricosmetics: The Emerging Roles and Applications of the UV Radiation-Absorbing Colourless Carotenoids Phytoene and Phytofluene [PDF]
Nutrients, 2019 In this work, the importance of dietary carotenoids in skin health and appearance is comprehensively reviewed and discussed. References are made to their applications in health-promoting and nutricosmetic products and the important public health ...
Antonio J Meléndez-Martínez +2 more
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Status and Dietary Intake of Phytoene and Phytofluene in Spanish Adults and the Effect of a Four-Week Dietary Intervention with Lutein-Rich Fruits or Vegetables [PDF]
Nutrients, 2022 Phytoene (PT) and phytofluene (PTF) are colourless carotenoids presents in the human diet and in blood, faeces and tissues and are biologically active. However, there is very little data on these carotenoids.
Elena Rodríguez-Rodríguez +2 more
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