Red pigment of grape skin

• 葡萄皮红色素

Red pigment of grape skin的用法和样例：

例句

1. It is a kind of natural edible pigment extracted from grape skin.
   葡萄皮红色素是从葡萄皮中提取的天然食用色素。
2. The extraction and stability of red pigment of vitis amurensis husk were studied.
   对山葡萄皮红色素的提取及稳定性进行了研究。