4种姜荷花苞片色素成分特征分析

Feature Analysis of the Pigment Composition in the Bracts of Four Kinds of Curcuma alismatifolia

为了解姜荷花苞片颜色多样性及其色素成分,对4种姜荷花在颜色表现有差异性的上、下部苞片进行了色素成分的初步分析。通过显色反应、黄酮类化合物特征颜色反应和紫外-可见光谱扫描,分析了4种姜荷花不同苞片中的色素组成。结果表明:红火炬上苞片、金銮红上苞片所含色素主要为黄酮和花色素苷;红火炬下苞片、多东上苞片所含色素主要为二氢黄酮(醇)和花色素苷;黄色梦幻上苞片和下苞片所含色素主要为黄酮和叶绿素;多东下苞片、金銮红下苞片所含色素主要为异黄酮、花色素苷和叶绿素。研究结果说明了姜荷花不同色系苞片的色素成分存在明显差异,红色系苞片所含的主要色素成分为花色素苷和其他黄酮类化合物;黄绿色系和杂色系苞片的主要呈色色素为黄酮类化合物和叶绿素。

In order to understand the color diversity and pigment components of the bracts of Curcuma alismatifolia,the pigment components of the upper and lower bracts of four kinds of Curcuma alismatifolia with different color performance were analyzed.The pigment compositions in different bracts of four kinds of Curcuma alismatifolia were analyzed by using the color reaction,feature color reaction of flavonoid compounds and UV-visible spectrum scanning.The results showed that the pigments contained in the upper bracts of Honghuoju and Jinluanhong were mainly flavonoids and anthocyanins;the pigments contained in the lower bracts of Honghuoju and the upper bracts of Duodong were mainly dihydroflavone(alcohol)and anthocyanin;the pigments contained in the lower bracts of Duodong and Jinluanhong were mainly isoflavones,anthocyanins and chlorophyllin.The above results suggested that there were obvious differences in the pigment components of different color-series bracts of Curcuma alismatifolia.The main pigment components of red-series bracts were anthocyanins and other flavonoid compounds.The main chromogenic pigment in the yellow-green and mixed color bracts were flavonoids and chlorophyll.