文章摘要
魏炜,李彦伟,刘凤霞,许晓飞,刘志军.响应面法优化超高压提取黄精多糖工艺及抗氧化活性[J].精细化工,2019,36(5):
响应面法优化超高压提取黄精多糖工艺及抗氧化活性
Preparation of the Polygonatum Polysaccharides using Ultra-high Pressure technology by Response surface method and study of the Antioxidant Activities of Polysaccharides
投稿时间:2018-10-13  修订日期:2019-01-04
DOI:
中文关键词: 超高压  黄精多糖  提取率  工艺优化  响应面法  抗氧化性  中药现代化技术
英文关键词: ultra high pressure  polygonatum polysaccharides  extraction rate  process optimization  response surface method  antioxidant activities  modernization technology of traditional Chinese medicines
基金项目:
作者单位E-mail
魏炜 大连理工大学流体与粉体工程研究设计所 hjweiwei@dlut.edu.cn 
李彦伟 大连理工大学流体与粉体工程研究设计所  
刘凤霞 大连理工大学流体与粉体工程研究设计所  
许晓飞 大连理工大学流体与粉体工程研究设计所  
刘志军 大连理工大学流体与粉体工程研究设计所 liuzj@dlut.edu.cn 
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中文摘要:
      以黄精为研究对象,采用超高压提取技术,利用单因素实验及响应面方法优化超高压提取黄精多糖的工艺条件,以期获得较优的工艺参数,并将实验结果与传统工艺结果进行对比,综合考察其提取能力,最后对黄精多糖的抗氧化性进行研究。实验结果表明,超高压提取黄精多糖在压力255 MPa、物料粒径40目、料液比1:17(物料质量与提取剂体积比)、保压时间9.5 min、提取温度为常温、提取剂为水的工艺条件下,多糖提取率为25.01%,而传统煎煮法在提取时间90 min、提取温度100 ℃的工艺条件下,多糖提取率为19.83%,表明超高压提取黄精多糖方式较为有效。当黄精多糖浓度为1 mg/mL时,1,1-二苯基-2-三硝基苯肼(DPPH)自由基清除能力达到34.14%。
英文摘要:
      The ultrahigh pressure extraction technology was used to extract polysaccharides from Polygonatum cyrtonema Hua. The single factor experiment and response surface method were applied to obtain optimal process parameters. Furthermore, the antioxidant activity of polygonatum polysaccharides was investigated. The results showed that the optimal extraction conditions were as follows: pressure 255 MPa, particle size of raw material 40 mesh, ratio of raw material to extraction agent 1∶17 (material refers the mass of the raw material, unit g;liquid refers to the volume of the extractant agent, unit mL ), extraction time 9.5 min, extraction temperature room temperature ,and extractant agent (water). Under these conditions, the extraction rate of polysaccharides was 25.01%. While the traditional decocting method had an extraction rate of polysaccharides of 19.83% at 100℃ for 90 min, which indicated that ultrahigh pressure extraction technology was more effective technology for extracting polygonatum polysaccharides. The scavenging ability of polysaccharides (mass concentration 1 g/L) toward 1, 1-diphenyl-2-trinitrophenylhydrazine (DPPH) free radical reached 34.14%.
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