天然产物研究与开发 ›› 2024, Vol. 36 ›› Issue (4): 632-643.doi: 10.16333/j.1001-6880.2024.4.010

• 开发研究 • 上一篇    下一篇

枸杞子结合多酚碱水解与酸水解提取工艺的比较和产物分析

王   妍1,2,曾文俊1,2,张玉婷1,布尔汉·洁吾海尔阿依1,李艳萍3,丁建宝1,3,李娆娆4,杨   晋1,2,5 *   

  1. 1北方民族大学化学与化学工程学院;2国家民委化工技术基础重点实验室,银川 750021;3宁夏五行科技有限公司,银川 750001;4中国中医科学院中药研究所,北京 100700;5宁夏天然药物工程技术研究中心,银川 750021
  • 出版日期:2024-04-28 发布日期:2024-04-28
  • 基金资助:
    宁夏回族自治区自然科学基金(2023AAC03280);宁夏回族自治区重点研发计划项目(对外合作专项)(2020BFG2016)

Comparison of alkaline and acid hydrolysis extraction of non-extractable phenolic compounds in Lycii Fructus and hydrolysates analysis

WANG Yan1,2,ZENG Wen-jun1,2,ZHANG Yu-ting1,BURHAN Jawharay1,LI Yan-pin3,DING Jian-bao1,3,LI Rao-rao4,YANG Jin1,2,5*   

  1. 1School of Chemistry and Chemical Engineering,North Minzu University;2Key Laboratory for Chemical Engineering and Technology,State Ethnic Affairs Commission,Yinchuan 750021,China;3Ningxia Wuxing Science and Technology Co.,Ltd.,Yinchuan 750001,China;4Institute of Chinese Materia Medica,China Academy of Chinese Medical Sciences,Beijing 100700,China;5Ningxia Research Center for Natural Medicine Engineering and Technology,Yinchuan 750021,China
  • Online:2024-04-28 Published:2024-04-28

摘要:

为了全面评估枸杞子中的酚类成分,本研究分别利用碱水解和酸水解法制备了其中的结合多酚(non-extractable phenolic compounds,NEPC)。选取Box-Behnken实验设计建立了酸或碱的浓度、水解时间和料液比等与NEPC得率之间的数学模型,并优化了水解工艺参数。碱水解过程中的时间对NEPC得率影响显著,而料液比对酸水解的结果影响较大;最佳工艺条件下,碱水解和酸水解获得的NEPC分别为0.65±0.05 mg/100 g和0.52±0.03 mg/100 g。利用UPLC-Q-TOF-MS,从水解产物中解析了11种化合物,主要是苯丙素衍生物。11种化合物都可在酸水解产物中被检出,而碱水解产物中仅鉴定出4种物质。研究结果表明,碱水解能得到更多的NEPC,酸水解产物则表现出良好的化合物多样性,因此制备NEPC时,应根据不同的研究目的选择水解方法。

关键词: 枸杞子, 结合多酚, 碱水解, 酸水解, 工艺优化, 产物分析

Abstract:

In order to comprehensively evaluate the phenolic components in Lycii Fructus,this study prepared non extractable phenolic compounds (NEPC) from Lycii Fructus after removing free polyphenols using alkaline hydrolysis and acid hydrolysis,respectively.The Box-Behnken experimental design method was selected to establish a mathematical model between NEPC yield and hydrolysis conditions,such as acid or alkali concentration,hydrolysis time,and material liquid ratio.The results of the response surface experimental design analysis indicated that in alkaline hydrolysis,the hydrolysis time has a significant impact on the yield of NEPC,but in acid hydrolysis,the ratio of material to liquid in acid hydrolysis has a considerable impact on the outcomes.Under the optimum circumstances,the yield of NEPC were 0.65±0.05 mg/100 g for the alkaline hydrolysis process and 0.52±0.03 mg/100 g for acid hydrolysis procedure,respectively.The chemical components in the hydrolysates were analyzed using UPLC-Q-TOF-MS.Eleven compounds were identified,which were the phenylpropanoids.In conclusion,the acid hydrolysate contained eleven compounds,while the alkali hydrolysis products had only four substances.Alkali hydrolysis produced more NEPC,whereas acid hydrolysate showed a good diversity of chemicals.Hence,different hydrolysis methods should be chosen for different research purposes while preparing NEPC.

Key words: Lycii Fructus, non-extractable phenolic compounds, alkaline hydrolysis, acid hydrolysis, process

中图分类号:  R932