Low methoxyl(LM) pectin was obtained from fresh orange peel by using Na2CO3 as an activator to active pectin esterase(PE) in the raw material and pectin was de-esterified.

• 以新鲜橙皮为原料,在盐酸水解乙醇沉淀提取果胶之前,激活并利用果皮中固有的果胶酯酶进行果胶的酶法脱酯,制备低甲氧基果胶,以产品的甲氧基含量和果胶得率为指标,确定最佳工艺条件。