@article{hu_gao_zhao_yang_2021,  title={Response surface optimization of polysaccharide extraction from Galla Chinensis and determination of its antioxidant activity <i>in vitro</i>},  volume={41},  ISSN={0101-2061},  url={https://doi.org/10.1590/fst.38619},  DOI={10.1590/fst.38619},  number={1},  journal={Food Science and Technology},  publisher={Sociedade Brasileira de Ciência e Tecnologia de Alimentos},  author={HU, Jiangxia and GAO, Jiayu and ZHAO, Zijun and YANG, Xiao},  year={2021},  month={Jan},  pages={188–194} }