天然产物研究与开发 ›› 2022, Vol. 34 ›› Issue (增刊2): 66-73.

• 开发研究 • 上一篇    下一篇

响应面法优化沙棘籽粕5-羟色胺部位的提取工艺及其抗炎活性研究

王继飞1,2,3,铁芳芳1,2,胡   娜1,2,王洪伦1,2*   

  1. 1中国科学院西北高原生物研究所 中国科学院藏药研究重点实验室;2青海省藏药研究重点实验室,西宁 810008;3中国科学院大学,北京 100049
  • 出版日期:2022-12-07 发布日期:2022-12-07
  • 基金资助:
    青海省科技厅项目(2021-ZJ-T05)

Study on optimization of extraction process of 5-hydroxytryptamine from Hippophae rhamnoides Linn. seed meal by response surface methodology and its anti-inflammatory activity

WANG Ji-fei1,2,3,TIE Fang-fang1,2,HU Na1,2,WANG Hong-lun1,2*   

  1. 1Key Laboratory of Tibetan Medicine Research,Northwest Institute of Plateau Biology,Chinese Academy of Sciences;2Key Laboratory of Tibetan Medicine Research of Qinghai Province,Xining 810008,China;3University of the Chinese Academy of Sciences,Beijing 100049,China
  • Online:2022-12-07 Published:2022-12-07

摘要:

采用响应面法对乙酸水提取沙棘籽粕中5-羟色胺的工艺进行优化,获得了最佳提取工艺为:乙酸浓度2.6%,液料比50 mL/g,温度100 ℃,时间60 min,提取1次。在此条件下,5-羟色胺提取得率为2.42±0.04 mg/g。利用大孔吸附树脂对5-羟色胺进行富集,获得了沙棘籽粕5-羟色胺部位。通过建立脂多糖诱导的RAW 264.7小鼠单核巨噬细胞炎症模型考察沙棘籽粕5-羟色胺部位的抗炎活性,并对其作用机制进行探讨。结果显示,5-羟色胺部位能够抑制细胞分泌NO和炎症因子IL-6、TNF-α,同时减少COX-2蛋白的表达并抑制IκBα蛋白的磷酸化,对脂多糖所致细胞的炎症反应具有显著的抑制作用。

关键词: 沙棘籽粕, 5-羟色胺, 响应面, 提取工艺, RAW 264.7细胞, 抗炎活性

Abstract:

Response surface methodology (RSM) was used to optimize the extraction process of 5-hydroxytryptamine (5-HT) from Hippophae rhamnoides Linn. seed meal with acetic acid.The optimal extraction conditions were as follows:acetic acid concentration 2.6%,liquid-solid ratio 50 mL/g,extraction temperature 100 ℃,extraction time 60 min and 1 time.Under the conditions,the extraction yield of 5-HT was 2.42 ± 0.04 mg/g.The 5-HT was enriched by macroporous adsorption resin.Meanwhile,lipopolysaccharide (LPS)-induced inflammatory model on RAW 264.7 mouse monocytes-macrophages was established to investigate the anti-inflammatory activity of the 5-HT fraction.The mechanism was also discussed.The results showed that 5-HT fraction inhibited the secretion of NO and inflammatory cytokines IL-6 and TNF-α,decreased the expression of COX-2 protein and inhibited the phosphorylation of IκBα protein,which significantly inhibited the inflammatory response induced by LPS.

Key words: Hippophae rhamnoides Linn. seed meal, 5-hydroxytryptamine, response surface methodology, extraction process, RAW 264.7 cells, anti-inflammatory activity

中图分类号:  TQ461