Journal of Tianjin Agricultural University ›› 2025, Vol. 32 ›› Issue (5): 6-11.doi: 10.19640/j.cnki.jtau.2025.05.002

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Optimization of extraction conditions for protein from Chenopodium quinoa using response surface methodology

Han Xu, Chen ShuaijunCorresponding Author, Zhang Yaru, Ding Bo, Cao Gaoyi, Xie Xiaodong   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2024-03-22 Published:2025-11-12

Abstract: In this study, ‘Jinli No. 3 'Chenopodium quinoa cabbage were used as the experimental material. Cell disruption was achieved using ultrasonic-assisted extraction, and alkaline extraction-acid precipitation method was employed to extract soluble proteins from quinoa cabbage. The extraction process of quinoa cabbage protein was optimized. The effects of temperature, liquid-to-material ratio, extraction time, and pH on the extraction rate were explored using single-factor experiments combined with response surface methodology. The optimal extraction conditions for Jinli No. 3 C. quinoa cabbage protein was determined as follows: temperature of 35 ℃, liquid-to-material ratio of 1∶40(g/mL), extraction time of 1.5 h, and pH of 4.5±0.05. The maximum extraction rate of C. quinoa cabbage protein could reach 55.01%. The results of this study can provide experimental basis for the development and utilization of chenopodium quinoa cabbage protein.

Key words: flowering Chinese cabbage, protein extraction, response surface methodology, process optimization

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