›› 2020, Vol. 32 ›› Issue (10): 1866-1872.DOI: 10.3969/j.issn.1004-1524.2020.10.16

• Quality and Safety of Agriculturel Products • Previous Articles     Next Articles

Optimization of extraction process of total flavonoids from Acerola cherry by response surface methodology and their antioxidant activities

YANG Zhi1, LI Wenyi1,2,*, GAO Yuntao1, XIONG Huabin1, CHEN Yijian2, YANG Huijuan3   

  1. 1. Joint Research Centre for International Cross-Border Ethnic Regions Biomass Clean Utilization in Yunnan, Yunnan Minzu University, Kunming 650500, China;
    2. Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming 650500, China;
    3. College of Standardization, China Jiliang University, Hangzhou 310018, China
  • Received:2020-08-04 Online:2020-10-25 Published:2020-11-16

Abstract: For effective extraction of total flavonoids from Acerola cherry, on the basis of single factor experiments, the effect of cherry crushing mesh number, ethanol concentration, and liquid-solid ratio were studied by response surface methodology. Meanwhile, the antioxidant activity of total flavonoids from Acerola cherry was assessed. The results showed that the optimum extraction conditions were: cherry crushing mesh number of 63.13, ethanol volume fraction of 49.71%, liquid-solid ratio of 29.85. Under the optimal conditions, flavonoids extraction yield was 86.9 mg·100g-1 and was closed to the predicted value of 85.07 mg·100g-1. The antioxidant activity of the extracts increased with the increase of extraction rate, and the DPPH antioxidant equivalent under the optimum extraction conditions was 73.38.

Key words: Acerola cherry, total flavonoids, response surface methodology, antioxidant activity

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