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    Extraction and Purification of Flavonoids and Antiviral and Antioxidant Activities of <i>Polygonum perfoliatum</i> L. by Chan Zhao, Jian Xu, Yao Liu, Peng Xu, Jin Yi, Lin Feng, Yanyan Miao, Yongping Zhang

    Published 2024-12-01
    “…The optimum extraction process was determined using one-way and response surface methods with the following conditions: ethanol concentration of 82.00%, temperature of 90.29 °C, solid-to-liquid ratio of 1:32.78 g/mL, extraction time of 1.5 h, and two extractions with a yield of 14.98 ± 0.11 mg/g. …”
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