phytoenen.

Brit.

/ˈfʌɪtəʊiːn/, U.S.

/ˈfaɪdoʊˌin/

Origin: Formed within English, by compounding. Etymons: phyto- comb. form, -ene comb. form.

Etymology: < phyto- comb. form + -ene comb. form. Compare phytol n.

Biochemistry.

An acyclic polyunsaturated isoprenoid hydrocarbon, C₄₀H₆₄, that is a colourless precursor in the biological synthesis of carotenoid pigments, and is a viscous liquid when isolated.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > branched-chain > other

phytoene1950

1950 J. W. Porter & R. E. Lincoln in Arch. Biochem. 27 391 The name phytoene is given to a compound reported by Porter and Zscheile... It has previously been called a colorless, nonfluorescent polyene.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 54/2 The synthesis of carotenoids leads..to the colorless compound, phytoene, which has the branched, 40-carbon chain characteristic of the carotenoid skeleton.

1988 L. Stryer Biochem. (ed. 3) xxiii. 571 Phytoene, the C₄₀ condensation product, is dehydrogenated to yield lycopene.

2003 Nutrition Res. Newslet. (Nexis) 22 15 Plasma responses from other carotenoids present in watermelon and tomato, including beta-carotene, phytoene and phytofluene, were also examined.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phytoene
释义	phytoenen. Brit. /ˈfʌɪtəʊiːn/, U.S. /ˈfaɪdoʊˌin/ Origin: Formed within English, by compounding. Etymons: phyto- comb. form, -ene comb. form. Etymology: < phyto- comb. form + -ene comb. form. Compare phytol n. Biochemistry. An acyclic polyunsaturated isoprenoid hydrocarbon, C₄₀H₆₄, that is a colourless precursor in the biological synthesis of carotenoid pigments, and is a viscous liquid when isolated. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > alkenes > branched-chain > other phytoene1950 1950 J. W. Porter & R. E. Lincoln in Arch. Biochem. 27 391 The name phytoene is given to a compound reported by Porter and Zscheile... It has previously been called a colorless, nonfluorescent polyene. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) II. 54/2 The synthesis of carotenoids leads..to the colorless compound, phytoene, which has the branched, 40-carbon chain characteristic of the carotenoid skeleton. 1988 L. Stryer Biochem. (ed. 3) xxiii. 571 Phytoene, the C₄₀ condensation product, is dehydrogenated to yield lycopene. 2003 Nutrition Res. Newslet. (Nexis) 22 15 Plasma responses from other carotenoids present in watermelon and tomato, including beta-carotene, phytoene and phytofluene, were also examined. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1950
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