| 重庆奉节脐橙果皮中果胶的脱色及沉淀方法研究 |
| |
| 引用本文： | 王云帆,吴遥,冉玲,段惠清,张磊.重庆奉节脐橙果皮中果胶的脱色及沉淀方法研究[J].重庆石油高等专科学校学报,2014(1):99-101,114. |
| |
| 作者姓名： | 王云帆 吴遥 冉玲 段惠清 张磊 |
| |
| 作者单位： | [1]重庆科技学院化学化工学院,重庆401331 [2]西南大学食品科学学院,重庆400715 |
| |
| 基金项目： | 重庆科技学院第七届大学生科技创新训练计划项目 |
| |
| 摘 要： | 在采用草酸铵提取法从重庆奉节脐橙果皮中提取果胶的过程中分别采用活性炭脱色和乙醇脱色2种方法,通过实验得知乙醇脱色的方法效果较好.同时探讨采用乙醇沉淀法时乙醇浓度、温度、沉淀时间、pH各因素对果胶得率的影响,结果表明,用乙醇沉淀果胶时,溶液中乙醇最适宜浓度为50％;沉淀过程中溶液温度对果胶得率的影响不大,选择室温下沉淀即可;沉淀时间为30 min;沉淀时溶液的pH在2.5～3.5之间时果胶得率最高.
|
| 关 键 词： | 果胶 重庆奉节脐橙果皮 活性炭脱色 乙醇脱色 乙醇沉淀 |
Study on Decolorizing and Precipitation Method of Pectin from the Peel of Chongqing Fengjie Orange |
| |
| Authors: | WANG Yunfan ＇ WU Yao RAN Ling DUAN HuiqingI ZHANG Lei |
| |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331; 2. School of Food Science, Southwest University, Chongqing 400715) |
| |
| Abstract: | Comparative research on the method of activated carbon decolorizing and the method of ethanol decolori- zing of extracting pectin from Chongqing Fengjie orange peel by ammonium oxalate has been done. The result shows that the method of ethanol decolorizing is good. The paper also discusses the effects of four factors （ ethanol concen- tration, temperature, precipitation time, pH） on yield of pectin with ethanol precipitation. The optimal technology is as follows, ethanol concentration is 50%, the temperature is room temperature, the time of precipitation is 30 rain, and pH is in 2.5 -3.5. |
| |
| Keywords: | pectin Chongqing Fengjie orange peel activated carbon decolorizing ethanol decolorizing ethanol precipitation |
| 本文献已被 维普 等数据库收录！ |
|
