食品科学 ›› 2006, Vol. 27 ›› Issue (5): 167-171.

• 工艺技术 • 上一篇    下一篇

柚皮果胶的提取方法比较及其粘流性能研究

 周尽花, 周春山, 吴宇雄, 汪璠, 沈志强, 常文彬   

  1. 中南大学化学化工学院; 中南林业科技大学理学院
  • 出版日期:2006-05-15 发布日期:2011-09-16

Study on Comparison of Pectin Extraction Methods from Shaddock Peel and Flow Properties of Pectin Solutions

ZHOU  Jin-Hua, ZHOU  Chun-Shan, WU  Yu-Xiong, WANG  Fan, SHEN  Zhi-Qiang, CHANG  Wen-Bin   

  1. 1.College of Chemistry and Chemical Engineering, South Central University, Changsha 410083, China; 2.School of Science, South Central University of Forestry and Technology, Changsha 41004, China
  • Online:2006-05-15 Published:2011-09-16

摘要: 比较了从江永柚皮中提取果胶的不同方法。研究了柚皮果胶溶液的粘流性能,测定了果胶的特性粘度并由此计算出果胶的分子量。结果表明:盐酸逆流萃取法为从柚皮中提取果胶的较好方法,果胶溶液的粘流活化能约为17.14kJ/mol(依赖于果胶浓度大小),采用逆流萃取法提取的果胶特性粘度为4.492ml/g,果胶分子量为7.17×104。

关键词: 果胶, 柚, 提取, 粘流性能, 粘度

Abstract: Different pectin extraction methods for Jiangyong Shaddock peel were compared. The flow properties of shaddock peel pectin solutions were studied and the intrinsic viscosity of pectin was determined and thus the viscosity-average molecular weight of pectin was obtained. Experiments results showed that the hydrochloric acid countercurrent extraction is the best method to extract pectin from shaddock peel. The viscous flow active energy of pectin solutions was about 17.14kJ/mol, depending on the concentration. Intrinsic viscosity and average molecular weight of pectin obtained by countercurrent extraction with hydro- chloric acid are 4.492ml/g and 7.17×104, respectively.

Key words:  , pectin; shaddock; extraction; flow property; viscosity;