用脂肪酸酰化蓝莓花色苷：改善其脂溶性和抗氧化活性。
Acylating blueberry anthocyanins with fatty acids: Improvement of their lipid solubility and antioxidant activities.
作者信息
Wang Pengkai, Liu Jingna, Zhuang Yuanhong, Fei Peng
机构信息
College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Province Engineering Laboratory for Marine Biological Products, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China.
Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China.
出版信息
Food Chem X. 2022 Aug 8;15:100420. doi: 10.1016/j.fochx.2022.100420. eCollection 2022 Oct 30.
Aimed at exploring the impact of fatty acid side chains on the anthocyanins, valeric acid, decanoic acid and myristic acid were used to grafting onto the blueberry anthocyanins, and the acylating degree value of the of -valeric acid acylated anthocyanins (Va-An), -decanoic acid acylated anthocyanins (De-An) and myristic acid acylated anthocyanins (My-An) reached 6.43 %, 7.56% and 8.38 %, respectively. After acylation modification, the octanol-water partition coefficient of the anthocyanins increased from -0.20 (native anthocyanins, Na-An) to 0.65 (Va-An), 0.66 (De-An) and 0.72 (My-An), respectively, indicating the increasement of the lipid solubility. Besides, although the DPPH clearance of acylated anthocyanins was lower than that of native anthocyanins, the inhibition ratio of β-carotene bleaching and malonaldehyde reduction effect of the acylated blueberry anthocyanins in were both stronger than that of native anthocyanins, which might be caused by the improvement of lipid solubility of the anthocyanins.
为了探究脂肪酸侧链对花青素的影响，用戊酸、癸酸和肉豆蔻酸对蓝莓花青素进行接枝，戊酸酰化花青素（Va-An）、癸酸酰化花青素（De-An）和肉豆蔻酸酰化花青素（My-An）的酰化度值分别达到6.43%、7.56%和8.38%。酰化修饰后，花青素的正辛醇-水分配系数分别从-0.20（天然花青素，Na-An）增加到0.65（Va-An）、0.66（De-An）和0.72（My-An），表明脂溶性增加。此外，虽然酰化花青素的DPPH清除率低于天然花青素，但酰化蓝莓花青素在β-胡萝卜素漂白抑制率和丙二醛还原效果方面均强于天然花青素，这可能是由于花青素脂溶性的提高所致。
Zotero 插件