Zhao Chang Ling, Wen Guo Song, Mao Zi Chao, Xu Shao Zhong, Liu Zheng Jie, Zhao Ming Fu, Lin Chun
Nat Prod Commun. 2015 Mar;10(3):461-6.
This paper summarized the important achievements about the general characteristics of the molecular structures of the stem tuber anthocyanins of Colored potatoes and the basic coloring effects of the anthocyanins on the tubers. The various coloration patterns of the skins and/or flesh of Colored potato tubers result from the accumulation of the anthocyanins in the periderms, phelloderms and/or peripheral cortices of the tubers, and the tuber colors are fundamentally determined by the matching profiles of the six naturally occurring anthocyanidins, i.e., cyanidin, delphinidin, malvidin, pelargonidin, peonidin and petunidin. Generally, the tuber anthocyanidins hold an O-glycosidic bond-linked rutinosyl at the C3 site, and either a glucosyl linked by an O-glycosidic bond or no substituent group may exist at the C5 site simultaneously. Furthermore, an E-monoacyl frequently exists at the C3-rutinosyls or at the C5-glucosyls of most tuber anthocyanins, and the phenolic acids acylating the tuber anthocyanins are often p-coumaric, ferulic and caffeic acids. The popular names of the p- coumaric acid derivatives of the malvidin, pelargonidin, peonidin and petunidin of the tubers are Malvanin, Pelanin, Peonanin and Petanin, respectively. This review provides a reference for the exploration of the mechanism of the tuber coloration and the identification of the molecular structures of the stem tuber anthocyanins of Colored potatoes.
本文总结了彩色马铃薯块茎花青素分子结构的一般特征以及花青素对块茎的基本着色作用等重要研究成果。彩色马铃薯块茎的皮和/或肉的各种着色模式是由于花青素在块茎的周皮、栓内层和/或外周皮层中积累所致，而块茎颜色从根本上由六种天然存在的花青素，即矢车菊素、飞燕草素、锦葵色素、矮牵牛素、芍药色素和矮牵牛色素的匹配情况决定。一般来说，块茎花青素在C3位点具有O-糖苷键连接的芸香糖基，并且在C5位点可能同时存在通过O-糖苷键连接的葡萄糖基或无取代基。此外，大多数块茎花青素的C3-芸香糖基或C5-葡萄糖基上经常存在E-单酰基，酰化块茎花青素的酚酸通常是对香豆酸、阿魏酸和咖啡酸。块茎中锦葵色素、矮牵牛素、芍药色素和矮牵牛色素的对香豆酸衍生物的通俗名称分别为锦葵宁、矮牵牛宁、芍药宁和矮牵牛苷宁。本综述为探索块茎着色机制和鉴定彩色马铃薯块茎花青素的分子结构提供了参考。
