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Copigmentation effects of phenolics on color enhancement and stability of blackberry wine residue anthocyanins: Chromaticity, kinetics and structural simulation

文献类型： 外文期刊

作者： Fan, Linlin 1 ; Wang, Ying 1 ; Xie, Pujun 2 ; Zhang, Lixia 1 ; Li, Yahui 1 ; Zhou, Jianzhong 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agroprod Proc, Zhonglingjie Rd 50, Nanjing 210014, Jiangsu, Peoples R China

2.CAF, Key Lab Biomass Energy & Mat, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China

关键词： Blackberry anthocyanin; Copigmentation; Ferulic acid; pi-pi stacking; Solvent effect

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2019 年 275 卷

页码：

收录情况： SCI

摘要： To expound the copigmentation effects of phenolics on blackberry wine residue anthocyanins (BWRA), the color and stability of BWRA with storage, thermal, light and oxidation treatments were evaluated by chromaticity, kinetics and structural simulation analysis. Results indicated that phenolic acids showed preferable copigmetation on BWRA solutions with the enhanced color, thermostability at 50-70 degrees C and light stability, whereas the degradation was accelerated at 90 degrees C. Meanwhile, flavonoids promoted the oxidation stability of BWRA. Of all the phenolic acids, ferulic acid presented the best copigmentation effect, and among the flavonoids rutin was the most active. Structural simulation suggested rutin and ferulic acid had the largest volume, potential energy (164.8 and 32.8 kcal/mol), minimized energy (39.2 and 11.3 kal/mol) and van der Waals energy (81.6 and 28.1 kcal/mol), respectively, which were favorable to the stabilization of the flavylium ion. The hydrogen bonding, pi-pi stacking and solvent effects were together involved in the copigmentation mechanism.

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