Results 141 to 150 of about 1,679 (171)

The occurrence of phytofluene in green plant organs

Archives of Biochemistry and Biophysics, 1953
Abstract 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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Preparation and spectral characteristics of all-trans-and a cis-phytofluene

Archives of Biochemistry and Biophysics, 1953
Abstract 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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Comprehensive characterization of high-purity colorless carotenoid (phytoene and phytofluene) geometric isomers: Spectroscopic properties, isomerization behavior, antioxidant capacity, and biological activities.

Food Research International
Phytoene (PT) and phytofluene (PTF) are colorless carotenoids attracting interest as natural UV absorbers, but their isomer-specific data remain scarce because these compounds are difficult to separate and purify. Here, (all-E)-PT, (15Z)-PT, (all-E)-PTF,
Y. Nishimura, Mitsuya Ito, Kazumi Sawada, Kako Matsumoto, Kento Nakamura, Ou Setoyama, Takashi Maoka, Masaki Honda   +7 more
semanticscholar   +1 more source

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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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, A G, Andrewes, N, Qureshi, J W, Porter   +3 more
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The enzymatic conversion of cis-[14C]phytofluene, trans-[14C]phytofluene, and trans-ζ-[14C]carotene to poly-cis-acyclic carotenes by a cell-free preparation of tangerine tomato fruit plastids

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, M, Kim, N, Qureshi, J W, Porter   +3 more
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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
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Phytofluene

Archives of Biochemistry and Biophysics, 1952
V, WALLACE, J W, PORTER
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The enzymatic conversion of phytoene to phytofluene

Biochemical and Biophysical Research Communications, 1962
D A, BEELER, J W, PORTER
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In vitro conversion of phytofluene and phytoene into carotenoid pigments

Archives of Biochemistry and Biophysics, 1952
B K, KOE, L, ZECHMEISTER
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