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首页> 外文期刊>Biochemical Systematics and Ecology >Acylated anthocyanins in the flowers of Vanda (Orchidaceae)
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Acylated anthocyanins in the flowers of Vanda (Orchidaceae)

机译：万代（兰科）花中的酰化花色苷

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摘要

More than 11 anthocyanins were observed in the violet-blue and red-purple flowers of Vanda hybrid cultivars (Orchidaceae), from which eight major acylated anthocyanins were isolated. Font of those pigments were based on cyanidin 3,7,3'-triglucoside and the other four pigments were based on delphinidin 3,7,3'-triglucoside as their deacylanthocyanins, which were acylated with two molecules of hydroxycinnamic acid and/or one molecule of malonic acid, respectively. Apart from four known acylated anthocyanins, two novel anthocyanins were unambiguously elucidated to be delphinidin 3-O-[6-O-(malonyl)-beta-glucopyranoside] -7,3'-di-[6-O-(trans-sinapoyl)-beta-glucopyranoside] and its demalonyl derivative by spectral and chemical methods. Another novel anthocyanin was determined to be delphinidin 3-O-malonylglucoside-7,3'-diferuloylglucoside by chromatographical methods. One further acylated anthocyanin was tentatively identified to be sinapoylferuloyl 3-malonylglucoside-7,3'-diglucoside of delphinidin. The distribution of these pigments was investigated in the flowers of four species and 13 hybrids by the analytical process of HPLC. Also the flower colour effects of these pigments are discussed.
机译：在Vanda杂种（兰科）的紫罗兰色和红色紫色花中观察到了11种以上的花色苷，从中分离出8种主要的酰化花色苷。这些颜料的字体基于花青素3,7,3'-三葡糖苷，其他四种颜料基于翠雀素3,7,3'-三葡糖苷作为它们的去氰花色素，它们被两个分子的羟基肉桂酸和/或一个分子酰化丙二酸分子。除了四种已知的酰化花色苷外，还清楚地阐明了两种新的花色苷为delphinidin 3-O- [6-O-（丙二酰基）-β-吡喃葡萄糖苷] -7,3'-di- [6-O-（反式芥子碱） ）-β-吡喃葡萄糖苷]及其去丙二酰基衍生物的光谱和化学方法。通过色谱法测定了另一种新颖的花色苷为delphinidin 3-O-丙二酰基葡糖苷-7，3'-二氟烷基葡糖苷。初步鉴定出另一种酰化的花色苷为飞燕草的芥子酰基阿魏酰基3-丙二酰葡糖苷-7,3'-二葡糖苷。通过HPLC的分析方法研究了这些色素在四种和13种杂种花中的分布。还讨论了这些颜料的花色效果。

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