文章基本信息

标题：Thermodynamic investigations of the copigmentation process between strawberry anthocyanins and rose petal polyphenols (Rosa damascena Mill.) at different temperatures
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作者：Ivalina Petrova ; Kiril Mihalev ; Vasil Shikov 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2020
卷号：207
页码：1020-1026
DOI：10.1051/e3sconf/202020701020
出版社：EDP Sciences
摘要：In this study the model systems between strawberry anthocyanins as pigment and rose polyphenols as copigment was investigated. The solutions were prepared from 1:2 to 1:10 pigment:copigment. The addition of increasing concentrations of rose petal polyphenols resulted in a gradual increase of hyperchromic effect. The absorption was determined at heating system from 20 to 50 o C and following cooling the same system from 50 to 20 o C. All calculated thermodynamic parameters were negative. The copigmentation reaction was determined as spontaneous, exothermic and thermally reversible.