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[Objective] To find the optimal technology for the extraction of total polyphenols from the leaves of Camellia chrysantha (Hu) Tuyama. [Method] With the extraction rate of total polyphenols as the index, L9(34) orthogonal test was adopted based on single factor test. Effects of acetone concentration, extraction temperature, extraction time and solid-liquid ratio on the extraction rate of total polyphenols from C. chrysantha leaves were researched. The optimal extraction technology was selected. [Result] The optimal extraction technology for total polyphenols from C. chrysantha leaves was 70% acetone concentration, 60 ℃ extraction temperature, 3.5 h extraction time and 1∶25 (W/V, g/mL) solid-liquid ratio. Under this condition, the extraction rate of total polyphenols from C. chrysantha leaves was 1.54%. [Conclusion] This method was simple, stable and feasible, and could be used for the extraction of total polyphenols from C. chrysantha leaves.
[Objective] To find the optimal technology for the extraction of total polyphenols from the leaves of Camellia chrysantha (Hu) Tuyama. [Method] With the extraction rate of total polyphenols as the index, L9 (34) orthogonal test was adopted based on single factor test. Effects of acetone concentration, extraction temperature, extraction time and solid-liquid ratio on the extraction rate of total polyphenols from C. chrysantha leaves were developed by. The optimal extraction technology was selected. [Result] The optimal extraction technology for total polyphenols from C. chrysantha leaves was 70% acetone concentration, 60 ° C. extraction temperature, 3.5 h extraction time and 1:25 (W / V, g / mL) solid-liquid ratio. Under this condition, the extraction rate of total polyphenols from C Chrysantha leaves was 1.54%. [Conclusion] This method was simple, stable and feasible, and could be used for the extraction of total polyphenols from C. chrysantha leaves.