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關鍵詞 巴西人參;低共熔溶劑;總皂苷;提取工藝;響應面法
中圖分類號 R 284 文獻標識碼 A 文章編號 0517-6611(2024)22-0162-05
doi:10.3969/j.issn.0517-6611.2024.23.034
開放科學(資源服務)標識碼(OSID):
Optimization of Deep Eutectic Solvents Extraction of Total Saponins from Pfaffia glomerata by Box-Behnken Response Surface Methodology
DONG Ming-ran1, LIU Jia2, XIA Nian-tong2 et al
(1.Institute of Medicinal Plant Development/Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193;2. School of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040)
Abstract [Objective] Response surface methodology was used to optimize the extraction process of total saponins from Pfaffia glomerata, providing reference for its further development and utilization.[Method]Taking amaranthaceous plant Pfaffia glomerata as the research object, total saponins were extracted using ultrasound assisted deep eutectic solvent method. Through single factor experiments, the molar ratio of urea to choline chloride, water content, liquid-solid ratio and extraction time were investigated,the total saponin yield was used as the evaluation index, and the Box-Behnken response surface methodology was used to optimize the extraction process of total saponins from Pfaffia glomerata.[Result] The optimal process for ultrasound-assisted deep eutectic solvents extraction of total saponins from Pfaffia glomerata was established with the following parameters: urea to choline chloride ratio of 1∶1, water content of 38%, liquid-material ratio of 18∶1 (mL∶g), and extraction time of 37 minutes. Under the conditions, the total saponin yield achieved was 6.26%. [Conclusion]This method has high extraction efficiency, good repeatability and simple operation, and can be used for the extraction of total saponins from Pfaffia glomerata.
Key words Pfaffia glomerata;Deep eutectic solvents;Total saponins;Extraction process;Response surface methodology
巴西人參[Pfaffia glomerata(Spreng.)Pedersen],又稱琺菲亞,莧科無柱莧屬植物,以干燥根部入藥,主要分布于南美洲熱帶雨林氣候帶,現在巴西、厄瓜多爾等地廣泛種植,2001年后在中國境內成功引種[1-2]。巴西人參是巴西戈伊亞斯地區常用的傳統草藥,巴西藥典中記載其廣泛應用于各種疾病,如壯陽、傷口愈合、降血糖、抗腫瘤等[3]。現代研究表明巴西人參中主要含有三萜類及其皂苷[4]、多糖類[5]、甾酮及其苷類[6]、黃酮及其苷類[7],還含有氨基酸、維生素等,其中皂苷類成分含量較高[8]。
低共熔溶劑(deep eutectic solvents,DES)是一種由氫鍵結合形成的綠色環保、制備簡單、可生物降解、可回收利用的新型溶劑,具有熔點低、毒性低、密度大、溶解性良好等特性[9],近年來受到廣泛關注,可應用于環境保護、中藥有效成分的提取[10]、分離[11]等方面,前景廣闊。……