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林产化学与工业

林产化学与工业 ›› 2011, Vol. 31 ›› Issue (5): 105-108.

• 研究报告 • 上一篇    下一篇

微波-超临界CO2萃取联用萃取柚皮果胶工艺研究

余先纯1, 李湘苏2, 龚铮午3   

  1. 1. 岳阳职业技术学院 基础部, 湖南 岳阳 414000;2. 南华大学 教务科, 湖南 衡阳 421002;3. 中南林业科技大学 材料科学与工程学院, 湖南 长沙 410004
  • 收稿日期:2010-12-30 修回日期:1900-01-01 出版日期:2011-10-30 发布日期:2011-10-30

Extraction of Pectin from Pomelo Peel with Microwave- supercritical CO2 Technique

YU Xian-chun1, LI Xiang-su2, GONG Zheng-wu3   

  1. 1. Basis Department, Yueyang Vocational & Technical College, Yueyang 414000, China;2. Academic Administration,University of South China, Hengyang 421002, China;3. College of Material and Engineering,Central South University of Forestry and Technology, Changsha 410004, China
  • Received:2010-12-30 Revised:1900-01-01 Online:2011-10-30 Published:2011-10-30

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摘要： 采用超临界CO2萃取与微波处理技术相结合萃取柚皮果胶,探讨了微波辐射功率、萃取时间、萃取压力、萃取温度、CO2流量对柚皮果胶得率的影响,并采用正交试验对实验方案进行优化。研究结果表明:当原料用量 5 g、微波辐射功率 450 W、萃取时间 15 min、萃取压力 8.5 MPa、萃取温度 40 ℃ 和CO2流量 12 L/h 时,果胶的平均得率 22.63 %,比相同条件下微波辅助水浴加热提取法的果胶得率高6.52个百分点。

关键词: 柚皮果胶, 微波, 超临界CO2萃取

Abstract: Pectin of pomelo peel was extracted with microwave-supercritical CO2 extraction. The factors of microwave power, extraction time, extraction pressure, extraction temperature and CO2 flow rate were discussed. The process was optimized with orthogonal experiment. The results showed that average yield of pectin was 22.63 % under the conditions of pomelo peel 5 g, microwave power 450 W, extraction time 15 min, extraction pressure 8.5 MPa, extraction temperature 40 ℃ and CO2 flow rate 12 L/h. The yield had been increased 6.50 % compared with the methods of conventional water bath heating under the same conditions.

Key words: pectin of pomelo peel, microwave, supercritical CO2 extraction

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