Effects of Different Metal Ions on the Stability of Anthocyanins as Indicators

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Li, Yiyao^1

Department of Food Quality and Safety, College of Food Science and Engineering, Jilin Univrsity, Jilin

130012, China^1

关键词: Absorbance values;    Absorbances;    Absorption wavelengths;    Anthocyanin solutions;    Calcium ions;    Color retention;    Concentration ratio;    Morning glory;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/5/052015/pdf
DOI  :  10.1088/1755-1315/300/5/052015

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the stability of anthocyanins in morning glory in the presence of different ions was analyzed by spectrophotometry. The anthocyanin extract was obtained by heating and reflux. Then the maximum absorption wavelength of anthocyanin was obtained by specific characteristic absorbance of anthocyanin, and the concentration of anthocyanin was calculated. Six different metal ions were added to the anthocyanin solution to determine the influence of the stability of anthocyanin by measuring the absorbance value. Through the analysis, we obtained calcium ions which can promote the stability of anthocyanins. Finally, we find the best concentration ratio of calcium ion and anthocyanin. Through the study, we found that when the concentration of anthocyanin and calcium ion is 1:7, the best color retention effect is achieved.