柑桔类果皮中果胶提取工艺综述.pdfVIP

柑桔类果皮中果胶提取工艺综述 刘海涵，徐刚，田庆华，郭学益 (中南大学,湖南长沙，410083) 摘要：简述了酸提法、离子交换法、盐沉淀法及微生物法提取柑桔类果皮中的果胶，着重 介绍了用微波萃取法从柑桔类果皮中提取桔子油和果胶的新工艺，同时介绍了超声波技 术、膜分离技术、树脂和喷雾干燥法在果胶提取工艺上的应用。针对目前中国果胶的生产 情况，提出应当注意柑桔类果皮的综合提取，积极应用果胶提取新技术，从而促进我国果 胶产业的跨越式发展。 关键词：柑桔；果胶；微波萃取 Technical review on pectin extraction from the citrus pericarp LIU Hai-han ,XU Gang , TIAN Qing-hua , GUO Xue-yi (Central South University, Changsha Hunan Province,410083) Abstract: In this paper, the summary on extract the pectin from the citruses by acid － extraction、ion－exchanging、salt －deposition and micro-organism method was given, and then a new microwave technique the authors developed recently which can be used to extracts both orange oil and pectin from the citruses was introduced with emphasis, meanwhile the application of some novel methods in the extraction of pectin, such as ultrasonic membrane separation resin and spray torrefaction was presented. Aimed 、 － 、 － at the current situation on pectin production in our country the comprehensive utilization ， of the citrus pericarp with the application of advanced technique was suggested and emphasized so as to promote the pectin industry development with great progress. Key Word: citrus；pectin； microwave －extraction 1 前言 果胶是一种天然高分子化合物，具有良好的凝胶性和乳化稳定作用，已广泛应用于食品、 医药、日化及纺织行业。果胶还可以吸附重金属离子，应用于废水中重金属处理及重金属 回收。果胶的主要成分为多聚 D 一半乳糖醛酸和少量中性多糖，各醛酸单位间经 a 一 1，4 糖甙键联结，平均分子量在 50 000—180 000 之间，具体结构式如图 1。 作者简介：刘海涵（1982－），男，硕士研究生.主要研究方向：资源循环与环境材料研究开发 联系方式：电话：0731－8877863；E－mail：haihanshiye@126.com 1