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1·Source:Extracted from the purple sweet potato Refined from.

来源：从紫甘薯中提取、精制而成。

2·Moreover, the anthocyanin from purple sweet potato was antioxidant.

紫甘薯花青素具有较强的抗氧化能力。

3·The pigment of purple sweet potato(PPSP)is water-soluble natural pigment.

紫心番薯色素（PPSP）为水溶性天然色素。

4·Purple sweet potato and milk were used as the main materials to make a new kind of yoghurt.

以紫薯和脱脂乳粉为主要原料，制得一种新型的发酵紫薯酸奶。

5·Purple sweet potato colorant is a natural anthocyanin pigment derived from purple sweet potato storage roots.

紫色甘薯色素是从紫色甘薯块根中浸提出来的一种天然食用花青素类色素。

6·Results anthocyanin from purple sweet potato consists of cyanidin, delphinidin, malvidin, petunidin and methyl anthocyanins.

结果紫甘薯花青素成分包括有矢车菊素、飞燕草素、锦葵色素、牵牛花色素和甲基花青素。

7·In this paper, the preparation of purple sweet potato anthocyanins purification process and its biological activity was studied.

本文对紫甘薯花青素的制备纯化工艺及其生物活性进行了研究。

8·And the sensory evaluation was used as the index, studying the fermentation process of purple sweet potato yogurt by orthogonal experiment.

以感官评价为考察指标，通过正交试验研究紫薯酸奶发酵工艺条件。

9·Using rutin as the standard sample, total flavonoid content in purple sweet potato for food packaging paper dying was determined by Vis-and UV-spectrophotometry.

以芦丁为标准样品，比较了可见光及紫外光分光光度法测定食品包装纸用色素紫甘薯总黄酮的方法。

10·But the purple sweet potato and orange or yellow sweet potato, its value is late to found, its resources is less, these hindered the development of research and exploitation.

但是，由于其价值发现较晚，资源较少，阻碍了紫肉和红黄肉甘薯的研究与开发利用。