南方红豆杉红色和黄色假种皮色素的分析

Analysis of the Pigment from Red and Yellow Aril in Taxus wallichiana var. mairei

以南方红豆杉的红色和黄色假种皮为材料,初步分析了其理化性质和呈色不同的原因。结果显示,南方红豆杉假种皮色素主要由类胡萝卜素和黄酮类物质组成,抗氧化剂和金属离子(K+,Na+,Ca2+,Al3+,Cu2+和Fe3+)对色素的稳定性影响较大;根据HPLC-MS结果推测紫杉烷类物质是南方红豆杉假种皮呈现红色,而黄酮类物质可能是假种皮呈现黄色的主要原因。

The physical and chemical properties of the pigment from red and yellow aril in Taxus wallichiana var. mairei, and the reason of different color of aril were analyzed in this paper. The results showed that： the pigment of T. wallichiana var. mairei belonged to carotenoid and flavonoid, and had poor stability to antioxidant and metal ions （K＋, Na＋, Ca2＋, Al3＋, Cu2＋ and Fe3＋）. Taxoids was probably why the aril present red and flavonoids was probably why the aril present yellow by HPLC-MS method.