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[Main carotenoids in pressed seeds (Cucurbitae semen) of oil pumpkin (Cucurbita pepo convar. pepo var. styriaca)]. 1993

Z Matus, and P Molnár, and L G Szabó
Pécsi Orvostudományi Egyetem Orvosi Kémiai Intézete, Pécs.

Various use of the oil-pumpkin offers reason for the phytochemical analysis of seed-meal's carotene pigments. Column chromatography was performed on the adsorbents MgO, Celite and CaCO3 with hexane and benzene as eluents. HPLC separation of different pigments was carried out on a 6 microns reverse phase packing with a ternary gradient elution method using a diode-array detector. The main components of the press-residue were lutein [3,3'-dihydroxy-alpha-carotene = (3R,3'R,6'R)-beta,epsilon-carotene-3,3'-diol; 52.5%] and beta-carotene (beta,epsilon-carotene; 10.1%). In addition to the above-mentioned pigments it was successful to reveal the presence of violaxanthin, luteoxanthin, auroxanthin epimers, lutein epoxide, flavoxanthin, chrysanthemaxanthin, 9(9')-cis-lutein, 13(13')-cis-lutein, 15-cis-lutein (central-cis)-lutein, alpha-cryptoxanthin, beta-cryptoxanthin and alpha-carotene (beta,epsilon-carotene) in small quantities.

UI MeSH Term Description Entries
D010860 Pigments, Biological Any normal or abnormal coloring matter in PLANTS; ANIMALS or micro-organisms. Biological Pigments
D002338 Carotenoids The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons containing 4 terpene subunits. Carotenes,Carotenoid,Tetraterpene Derivatives,Tetraterpenes,Carotene,Derivatives, Tetraterpene
D012639 Seeds The encapsulated embryos of flowering plants. They are used as is or for animal feed because of the high content of concentrated nutrients like starches, proteins, and fats. Rapeseed, cottonseed, and sunflower seed are also produced for the oils (fats) they yield. Diaspores,Elaiosomes,Embryos, Plant,Plant Embryos,Plant Zygotes,Zygotes, Plant,Diaspore,Elaiosome,Embryo, Plant,Plant Embryo,Plant Zygote,Seed,Zygote, Plant
D013053 Spectrophotometry The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.
D014675 Vegetables A food group comprised of EDIBLE PLANTS or their parts. Vegetable

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