Characterization, Antioxidant Activities and Optimization of Preparation Process of a Auricularia Polytricha Polysaccharide-Zinc (II) Complex
- 1 Changshu Institute of Technology, China
Abstract
In our previous work, a novel polysaccharide APP3a from Auricularia polytricha was successfully isolated and purified. Response surface methodology was used to optimize the preparation process of APP3a-Zn on the basis of the single factor experiments. Characterization of APP3a-Zn was carried out and its antioxidant activity was also investigated. The result showed that the best preparation process of APP3a-Zn was chelation time 4.45 h, chelation temperature 49.37°C and pH 4.68. The weight loss of APP3a-Zn was slightly smaller than that of APP3a within the heating temperature range and the crystal structure of APP3a-Zn had undergone tremendous changes compared with APP3a. APP3a-Zn had stronger antioxidant activity than APP3a. The results indicated that chelation with zinc enhanced the antioxidant activity of APP3a. In the food industry, APP3a-Zn had great potential as a new zinc supplement with antioxidant activity.
DOI: https://doi.org/10.3844/ajbbsp.2021.118.129
Copyright: © 2021 Xinyi Wu, Xiao Ding, Ze Zhang, Ziyi Xu, Jiehan Zhang, Wen Zhao and Yiyong Chen. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Auricularia polytricha
- Zinc
- Polysaccharide
- Chelation
- Characterization
- Antioxidant Activities