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林产化学与工业 ›› 2023, Vol. 43 ›› Issue (4): 60-66.doi: 10.3969/j.issn.0253-2417.2023.04.009

• 研究报告 • 上一篇    下一篇

低共熔溶剂-球磨法提取竹叶黄酮碳苷工艺优化

刘亚倩, 王进(), 汤锋   

  1. 国际竹藤中心; 国家林业和草原局/北京市共建竹藤科学与技术重点实验室, 北京 100102
  • 收稿日期:2022-04-22 出版日期:2023-08-28 发布日期:2023-08-26
  • 通讯作者: 王进 E-mail:wangjin@icbr.ac.cn
  • 作者简介:王进,研究员,博士,主要从事植物化学研究; E-mail:wangjin@icbr.ac.cn
    刘亚倩(1996—),女,河北张家口人,硕士生,主要从事林源活性成分提取和检测研究
  • 基金资助:
    “十三五”国家重点研发计划(2016YFD0600801)

Optimization of Extraction Process of Flavone C-glycosides from Bamboo Leaves by Deep Eutectic Solvent-Ball Mill Method

Yaqian LIU, Jin WANG(), Feng TANG   

  1. International Centre for Bamboo and Rattan; Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China
  • Received:2022-04-22 Online:2023-08-28 Published:2023-08-26
  • Contact: Jin WANG E-mail:wangjin@icbr.ac.cn

摘要:

以低共熔溶剂为提取溶剂,用球磨法从毛竹叶中提取黄酮碳苷类化合物,采用高效液相色谱-飞行时间质谱(LC-Q-TOF-MS)测定竹叶中4种黄酮碳苷(异荭草苷、荭草苷、异牡荆苷和牡荆苷)的含量,通过单因素试验和正交试验,对低共熔溶剂的含水量、提取时间、液料比等因素进行考察。结果表明,从竹叶中提取黄酮碳苷的最佳工艺为:低共熔溶剂(氯化胆碱和乙二醇构成)含水量50%、提取时间150 s、液料比6∶1(mL∶g)。在该条件下,从竹叶中提取4种黄酮碳苷的总提取得率为1.55 mg/g,其中,异荭草苷0.99 mg/g、荭草苷0.23 mg/g、牡荆苷0.04 mg/g、异牡荆苷0.29 mg/g。该方法提取得率比浸渍提取法提高了7.6%,且节约了时间和有机溶剂。利用该优化工艺,结合LC-Q-TOF-MS检测,成功应用于以毛竹叶为原料制成竹茶样品的黄酮碳苷提取与测定。

关键词: 黄酮碳苷, 球磨法, 低共熔溶剂, 提取, 竹叶

Abstract:

Ball mill method was used to extract flavone C-glycosides from bamboo leaves using deep eutectic solvents(DESs) as extraction solvent. The contents of four flavone C-glycosides(isoorientin, orientin, isovitexin and vitexin) in bamboo leaves were determined by liquid chromatography quadrupole time-of-flight mass spectrometry(LC-Q-TOF-MS). By single factor experiments and orthogonal design, the parameters including water content, extraction time and liquid-solid ratio of DESs were investigated. The results showed that the optimized extraction process of flavone C-glycosides from bamboo leaves was as follows: DESs(composed of choline chloride and ethylene glycol) water content of 50%, extraction time of 150 s, and liquid-solid ratio of 6∶1(mL∶g). Under these conditions, the total extraction yield of four flavone C-glycosides from bamboo leaves was 1.55 mg/g, including isoorientin of 0.99 mg/g, orientin of 0.23 mg/g, vitexin of 0.04 mg/g and isovitexin of 0.29 mg/g. The extraction yield of this method was 7.6% higher than that of immersion extraction, and the time and organic solvent were saved. This optimized technology combined with LC-Q-TOF-MS detection was successfully applied to the extraction and determination of flavone C-glycosides in bamboo tea samples made from bamboo leaves.

Key words: flavone C-glycosides, ball mill, deep eutectic solvents, extraction, bamboo leaves

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