期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 52, 期 2, 页码 274-279出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf030616i
关键词
Momordica cochinchinensis Spreng; fatty acids; carotenoids; HPLC; lycopene; beta-carotene; aril; mesocarp; seed; oil
In this study, we analyzed fatty acid and carotenoid composition of fruit tissues, including seed (which are surrounded by a bright red, oily aril) of Momordica cochinchinensis Spreng, known as gac in Vietnam. Carotenoid content was analyzed by reversed-phase HPLC, using a C-30 column and a method separating cis- and trans-isomers of the major carotenoids in this fruit. Mean values obtained in aril tissues were 1342 mug trans-, 204 mug cis-, and 2227 mug total lycopene; 597 mug trans-, 39 mug cis-, and 718 mug total beta-carotene; and 107 mug alpha-carotene/g FW. Mesocarp contained 11 mug trans-, 5 mug cis-beta-carotene/g FW, trace amounts of alpha-carotene, and no lycopene. Gac aril contained 22% fatty acids by weight, composed of 32% oleic, 29% palmitic, and 28% linoleic acids. Seeds contained primarily stearic acid (60.5%), smaller amounts of linoleic (20%), oleic (9%), and palmitic (5-6%) acids, and trace amounts of arachidic, cis-vaccenic, linolenic, and palmitoleic, eicosa-11-enoic acids, and eicosa-13-enoic (in one fruit only) acids.
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