人心果胶实验室提取方法的研究

Studies on Methods for Extraction of Sapodilla Rubber in Laboratory

以人心果果实为材料,用溶剂法提取人心果胶,通过比较不同含量NaOH溶液(ω=5%, 10%, 15% )、不同温度、不同溶剂(甲醇、乙醚、石油醚)、不同抽提次数、不同提取时间、不同颗粒大小的原料对提胶效果的影响。结果表明,粉碎的细粒( <1mm)以ω=5% NaOH溶液在45℃下煮3h,再用浓HCl处理2h,用石油醚回流抽提3次,回流温度80℃,抽提时间为5h,效果较好。

This paper studied the conditions for the methods for the extraction of sapodilla rubber by extractive. The alkali concentration ( NaOH,ω=5%,10%,15%),extraction temperature,extractive(Methanol,Aether and Ligroin),times of extraction,extraction time and granule size were studied. The main results indicated that treating the fine grains(<1 mm) with alkali extraction of 5% NaOH under 45 ℃, 95% HCl under 45 ℃, ligroin extractive for 3 times(5 h each)had good effect.