Research Institute for Production Development , 15 Shimogamo-morimoto-cho, Sakyo-ku, Kyoto 606-0805, Japan.
J Agric Food Chem. 2015 Feb 11;63(5):1622-30. doi: 10.1021/jf505008d. Epub 2015 Jan 29.
Three new oxidative metabolites of lycopenes, (erythro)-lycopene-5,6-diol, (threo)-lycopene-5,6-diol, and 1,16-dehydro-2,6-cyclolycopene-5-ol B, and four new oxidative metabolites of γ-carotenes, 2',6'-cyclo-γ-carotene-1',5'-diol A, 2',6'-cyclo-γ-carotene-1',5'-diol B, (erythro)-γ-carotene-5,6-diol, and (threo)-γ-carotene-5,6-diol, were isolated as minor components from the aril of gac, Momordica cochinchinensis. These structures were determined on the basis of spectroscopic data, and some of them were compared to the structures of synthetic samples. Furthermore, the oxidative metabolic conversion pathways of lycopene and γ-carotene were discussed.
三种新的番茄红素氧化代谢物（赤式）-番茄红素-5,6-二醇、（苏式）-番茄红素-5,6-二醇和 1,16-脱氢-2,6-环番茄红素-5-醇 B，以及四种新的γ-胡萝卜素氧化代谢物 2',6'-环-γ-胡萝卜素-1',5'-二醇 A、2',6'-环-γ-胡萝卜素-1',5'-二醇 B、（赤式）-γ-胡萝卜素-5,6-二醇和（苏式）-γ-胡萝卜素-5,6-二醇，作为次要成分从刺梨的假种皮中分离出来。这些结构是基于光谱数据确定的，其中一些与合成样品的结构进行了比较。此外，还讨论了番茄红素和γ-胡萝卜素的氧化代谢转化途径。
