2,5-dihydroxybenzoic acids both of which were found in black and red rice, respectively. The main bound phenolic acids were ferulic and p-coumaric, as well as 2,5-dihydroxybenzoic in red rice and protocatechuic and vanillic acids in black rice. Soluble-conjugated phenolics, TFC, and anthocyanins were negatively correlated with L∗, b∗, C and H° values. TPAC was positively correlated with a∗ (P < 0.01). Protocatechuic, vanillic, syringic and ferulic acids were associated with TPC and antioxidant activity in the soluble-conjugated fraction while protocatechuic and ferulic acid were correlated with those in the insoluble-bound fraction. Principal component analysis divided samples into non-pigmented, red and black rice groups." />
Abstract
Copyright © 2003-2019 China National Rice Research Institute. 中国水稻研究所 版权所有
地址:杭州市富阳区水稻所路28号(邮政编码:311401)电话:+86 571 63370590
杭州市拱墅区体育场路359号(邮政编码:310006)
京ICP备10039560号-5 浙公网安备33010302000429号
技术支持:中国农业科学院农业信息研究所