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Impact of onions in tomato-based sauces on isomerization and bioaccessibility of colorless carotenes: phytoene and phytofluene

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
openaire   +4 more sources

Contribution of violaxanthin, neoxanthin, phytoene and phytofluene to total carotenoid intake: Assessment in Luxembourg

Journal of Food Composition and Analysis, 2012
Abstract Dietary carotenoid intake has been associated with a low incidence of several chronic diseases, including cardiovascular complications, cancer, and macular degeneration. While food composition and intake of some carotenoids such as β-carotene and lycopene is frequently available, information on the contribution of less studied ...
Eric Biehler   +6 more
openaire   +1 more source

The enzymatic conversion of cis-[14C]phytofluene, trans-[14C]phytofluene, and trans-ζ-[14C]carotene to more unsaturated acyclic, monocyclic, and dicyclic carotenes by a cell-free preparation of red tomato fruits

Archives of Biochemistry and Biophysics, 1974
Abstract This paper reports the conversion of cis -[ 14 C]phytofluene to trans -[ 14 C|phytofluene and the conversion of the latter compound to trans -ζ-[ 14 C]carotene by a soluble enzyme system obtained from the plastids of red tomato fruits. Each of these radioactive compounds was also converted to labeled neurosporene, lycopenc, α-carotene ...
A A, Qureshi   +3 more
openaire   +2 more sources

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
openaire   +1 more source

Bioavailability of the isomer mixture of phytoene and phytofluene-rich alga Dunaliella bardawil in rat plasma and tissues

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
exaly   +3 more sources

Stereocontrolled synthesis of the di-cis-pentaene chromophore found in phytofluene from tangerine tomato fruits

Tetrahedron Letters, 1979
The di-cis-pentaene chromophore found in natural phytofluene (2) from Tangerine tomatoes has been synthesised by judicious choice of phosphine oxide anion intermediates and conditions for their reactions with unsaturated aldehydes.
John M. Clough, Gerald Pattenden
openaire   +1 more source

The roles of isomers of phytoene, phytofluene and ?-carotene in carotenoid biosynthesis by a mutant strain of Scenedesmus obliquus

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-
R, Powls, G, Britton
openaire   +2 more sources

ChemInform Abstract: STEREOCONTROLLED SYNTHESIS OF THE DI‐CIS‐PENTAENE CHROMOPHORE FOUND IN PHYTOFLUENE FROM TANGERINE TOMATO FRUITS

Chemischer Informationsdienst, 1980
AbstractDurch Wittig‐Kondensation von Phosphinoxid (I) mit dem ungesättigten Ketoester (II) entsteht (III), das mit Lithiumalanat und Braunstein zum ungesättigten Aldehyd (IV) führt, dieser kann mit dem aus trans, trans‐(E)‐Farnesylchlorid hergestellten Phosphinoxid (V) zu (VI) kondensiert und dann mit NaH in den definierten ungesättigten ...
J. M. CLOUGH, G. PATTENDEN
openaire   +1 more source

Phytofluene

Archives of Biochemistry and Biophysics, 1952
V, WALLACE, J W, PORTER
openaire   +2 more sources

The enzymatic conversion of phytoene to phytofluene

Biochemical and Biophysical Research Communications, 1962
D A, BEELER, J W, PORTER
openaire   +2 more sources

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