浙江农业学报 ›› 2022, Vol. 34 ›› Issue (5): 949-958.DOI: 10.3969/j.issn.1004-1524.2022.05.09

• 动物科学 • 上一篇    下一篇

桑黄中抑制α-葡萄糖苷酶活性成分提取及其化学成分鉴定

郑美瑜1(), 王璐1,2, 刘哲1, 张文娟1,2, 高浦1,3, 陆胜民1,*()   

  1. 1.农业农村部果品采后处理重点实验室,浙江省果蔬保鲜与加工技术研究重点实验室,浙江省农业科学院 食品科学研究所,浙江 杭州 310021
    2.浙江海洋大学 食品与药学学院,浙江 舟山 316022
    3.南京农业大学 食品科学技术学院,江苏 南京 210095
  • 收稿日期:2021-01-06 出版日期:2022-05-25 发布日期:2022-06-06
  • 通讯作者: 陆胜民
  • 作者简介:* 陆胜民,E-mail: lushengmin@hotmail.com
    郑美瑜(1972—),女,浙江武义人,硕士,副研究员,从事农副产品精深加工及综合利用研究。E-mail: zhenmey@sina.com
  • 基金资助:
    浙江省重点研发计划(2018C02003)

Extraction and identification of α-glucosidase-inhibitory components from Phellinus baumii

ZHENG Meiyu1(), WANG Lu1,2, LIU Zhe1, ZHANG Wenjuan1,2, GAO Pu1,3, LU Shengmin1,*()   

  1. 1. Key Laboratory of Fruit and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. College of Food and Pharmaceutical Sciences, Zhejiang Ocean University, Zhoushan 316022, Zhejiang, China
    3. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2021-01-06 Online:2022-05-25 Published:2022-06-06
  • Contact: LU Shengmin

摘要:

对桑黄的抑制α-葡萄糖苷酶活性成分进行筛选和优化提取,并对提取物中的酚类、黄酮和萜类物质进行了靶向鉴定。以α-葡萄糖苷酶抑制活性和总黄酮含量为评价指标对提取工艺参数进行了优化,通过UHPLC-Q-Exactive Orbitrap MS对提取物的成分进行鉴定。结果表明,桑黄60%乙醇体积分数提取物具有较好的α-葡萄糖苷酶抑制活性,优化提取的工艺条件是乙醇体积分数60%,提取温度80 ℃,提取时间3 h,料液比1:30,提取2次,黄酮提取率达到159.3 mg·g-1。液质联用共鉴定出45种成分,其中酚类物质种类最多。通过优化工艺得到含量较高的具有较强α-葡萄糖苷酶抑制活性的提取物,液质联用靶向分析表明该提取物中含有丰富的多酚类物质。

关键词: 桑黄, α-葡萄糖苷酶, 提取, 成分鉴定

Abstract:

To screen and extract the α-glucosidase-inhibitory components in Phellinus baumii,and to identify the constituents in the extracts, the four technological parameters were optimized by α-glucosidase-inhibitory rate and total flavonoid content, and the constituents were identified by UHPLC-Q-Exactive Orbitrap MS. The extracts by 60% ethanol exhibited significant inhibitory activity. The optimized extraction by orthogonal test were achieved using 60% of ethanol volume fraction at 80 ℃ for 3 h with a solid-to-liquid ratio of 1:30 for two times, whose flavonoid extraction ratio reached 159.3 mg·g-1. Forty five components were identified by LC-MS, among which phenolic substances were in the majority. The extracts with high flavonoids content and high α-glucosidase-inhibitory activity was obtained by optimized technology, containing abundant polyphenols.

Key words: Phellinus baumii, α-glucosidase, extract, component identification

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