Results 161 to 170 of about 2,210 (194)
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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 +3 more
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Phytoene, phytofluene, and lycopene from tomato powder differentially accumulate in tissues of male Fisher 344 rats [PDF]
Nutrition Research, 2007 Tomato product consumption is inversely related to prostate cancer incidence, and lycopene (LYC) has been implicated in reduced prostate cancer risk. The contribution of other tomato carotenoids, phytoene (PE) and phytofluene (PF), towards prostate cancer risk has not been adequately studied.
Nancy Engelmann Moran, Mary Ann Lila
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Food Research International, 2023
Food loss and waste are severe social, economic, and environmental issues. An example is the incorrect handling of waste or by-products used to obtain bioactive compounds, such as carotenoids. This review aimed to present a comprehensive overview of research on lycopene, phytoene, and phytofluene obtained from waste and by-products.
Felix G R Reyes
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Food loss and waste are severe social, economic, and environmental issues. An example is the incorrect handling of waste or by-products used to obtain bioactive compounds, such as carotenoids. This review aimed to present a comprehensive overview of research on lycopene, phytoene, and phytofluene obtained from waste and by-products.
Felix G R Reyes
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Journal of the American Chemical Society, 1952
Phytofluene ex tomatoes is subject to cis-trans isomerization. The native form in the tomatoes studied is a relatively thermostable but photosensitive cis compound that may rearrange spontaneously or when illuminated or under the catalytic influence of iodine in light. It then yields the more stable all-trans form possessing stronger adsorbability. The
Petracek, F. J., Zechmeister, L.
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Phytofluene ex tomatoes is subject to cis-trans isomerization. The native form in the tomatoes studied is a relatively thermostable but photosensitive cis compound that may rearrange spontaneously or when illuminated or under the catalytic influence of iodine in light. It then yields the more stable all-trans form possessing stronger adsorbability. The
Petracek, F. J., Zechmeister, L.
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The occurrence of phytofluene in green plant organs
Archives of Biochemistry and Biophysics, 1953Abstract By means of an improved method, the presence of very small quantities of phytofluene was revealed in chlorophyll-containing tissues of all plants examined, viz. 21 species representing 18 families of vascular plants.
L, ZECHMEISTER, G, KARMAKAR
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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 +5 more
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Preparation and spectral characteristics of all-trans-and a cis-phytofluene
Archives of Biochemistry and Biophysics, 1953Abstract A method for the isolation of a cis - and all- trans -phytofluene is described, and some spectral data are given for these two compounds.
B K, KOE, L, ZECHMEISTER
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Toxicology and Environmental Health Sciences, 2020
To understand the capability of carotenoids phytoene, phytofluene, and lycopene supplementation individually and in combination to counter the effect of nicotine-induced oxidative stress-mediated pancreatic islet dysfunctioning. Thirty male Wistar albino rats were divided into six groups: Group A, control; Group B, treated with intraperitoneal ...
Ankita Bhattacharjee +2 more
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To understand the capability of carotenoids phytoene, phytofluene, and lycopene supplementation individually and in combination to counter the effect of nicotine-induced oxidative stress-mediated pancreatic islet dysfunctioning. Thirty male Wistar albino rats were divided into six groups: Group A, control; Group B, treated with intraperitoneal ...
Ankita Bhattacharjee +2 more
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Archives of Biochemistry and Biophysics, 1974
Abstract The conversion of cis -[ 14 C]phytofluene to trans -[ 14 C]phytofluene and the conversion of the latter to trans -ζ-[ 14 C]carotene by a soluble enzyme system obtained from plastids of tangerine tomato fruits is reported. Each of these compounds is also converted to cis -ζ-carotene, proneurosporene, prolycopene, neurosporene, lycopene ...
A A, Qureshi +3 more
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Abstract The conversion of cis -[ 14 C]phytofluene to trans -[ 14 C]phytofluene and the conversion of the latter to trans -ζ-[ 14 C]carotene by a soluble enzyme system obtained from plastids of tangerine tomato fruits is reported. Each of these compounds is also converted to cis -ζ-carotene, proneurosporene, prolycopene, neurosporene, lycopene ...
A A, Qureshi +3 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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