In this experiment ， the pigment was extracted from the 2 black rice varieties ， yanheidao and yanzinuo ， and its contents were 1 . 2 % and 1 . 4 % of hulled rice ， respectively ， but 90 % in the hull . components seperation and identification proved that black rice pigment from the 2 varieties belonged to anthocyanin consisting of chrysanthemin and keracyanin 岩黑稻、岩紫糯2个黑米稻品种糙米的黑米色素提取率分别为1 . 2和1 . 4 ，糠皮的黑米色素提取率分别为9 . 6 、 12 . 0 ，约90的黑米色素存在于糙米糠皮中.性质研究认为， 2品种黑米稻的黑米色素结构均属花青苷类，经组分分离鉴定，花青定- 3 -葡萄糖及花青定- 3 -鼠李葡萄糖可能是构成色素的组分
