联合提取蚕沙中果胶和叶酸的研究  

Study on Joint Extraction of Pectin and Folic Acid from Silkworm Excrement

作　　者：李富兰[1] 颜杰[1] 郭金全[1] 李莉[1] 

机构地区：[1]四川理工学院材料与化学工程学院,四川自贡643000

出　　处：《蚕桑通报》2010年第2期18-21,共4页Bulletin of Sericulture

摘　　要：对从蚕沙中联合提制叶酸和果胶进行了研究。结果表明:以活性炭15g为吸附剂,吸附时pH为5.5,解吸剂以3%的氨水-70%乙醇溶液最佳,叶酸产率为0.14%左右,蚕沙叶酸的产品质量达到国家标准GB7302-87。果胶的最佳工艺条件:沉析时pH为3.5,沉析温度60℃,沉析时95%乙醇用量和浓缩液的比值为1.1为宜,果胶产品质量达到国家标准GBn246-85。The combined of extracting pectin and folic acid from silkworm faeces were studied The results shown that the optimum conditions were as follo.ws： 15g of activated carbon adsorbent, adsorption pH 5.5, desorption agent of 3% of the ammonia -70% ethanol solution, from which the product ration of folic acid was 0.14% and the quality of products met the state standard GB7302-87. The optimum conditions for abstraction of pectin： precipitation： pH =3.5, temperature 60℃, and ratio of the concentrated solution for 95% alcohol should be 1：1.1, and the quality of products met the state standard GBn246-85.

关 键 词：蚕沙 果胶 叶酸 提取 

分 类 号：S886.9[农业科学—特种经济动物饲养]