@article{li_zhang_zhang_cui_2020,  title={Optimization of ultrasound-assisted enzymatic extraction and <i>in vitro</i> antioxidant activities of polysaccharides extracted from the leaves of <i>Perilla frutescens</i>},  volume={40},  ISSN={0101-2061},  url={https://doi.org/10.1590/fst.29518},  DOI={10.1590/fst.29518},  number={1},  journal={Food Science and Technology},  publisher={Sociedade Brasileira de Ciência e Tecnologia de Alimentos},  author={LI, Huizhen and ZHANG, Hongjiao and ZHANG, Zhijun and CUI, Lixia},  year={2020},  month={Jan},  pages={36–45} }