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1. 发明授权

US4755618A Recovery of active tannin from schoene sludge 失效
标题翻译：活性鞣酸从ene泥中回收
公开(公告)号：US4755618A
公开(公告)日：1988-07-05
申请号：US57352
申请日：1987-06-02
申请人： Duane A. Bude , Ellen Y. Lin
发明人： Duane A. Bude , Ellen Y. Lin
IPC分类号： C07H13/08 , C12F3/06 , C07C69/88
CPC分类号： C07H13/08 , C12F3/06
摘要： A process for recovering active gallotannin for reuse comprising the extracting of dried schoene sludge (about 5% moisture) with a mixture of about 88 vol. % acetone--12 vol. % water to solubilize the gallotannins. The solvent is evaporated off, the residue is treated with water to solublize the gallotannins. After filtration, the clarified water solution is extracted with ethyl acetate. Evaporation of ethyl acetate leaves purified gallotannin which can be redissolved in water and spray dried to produce reusable powder. A preliminary step of separating yeast from the gallotannin protein complex involves treating with 60% acetone/40% H.sub.2 O at room temperature before making the solution about 88:12 acetone:water.
摘要翻译：一种用于回收活性gal单宁重复利用的方法，包括用约88体积％的混合物萃取干燥的ene泥（约5％水分）％丙酮-12体积％％水溶解gal单宁。将溶剂蒸发掉，残余物用水处理以溶解gal单宁。过滤后，用乙酸乙酯萃取澄清的水溶液。乙酸乙酯的蒸发除去纯化的鞣兰宁，其可以重新溶解在水中并喷雾干燥以产生可重复使用的粉末。将酵母与鞣兰蛋白复合物分离的初步步骤包括在室温下用60％丙酮/ 40％H 2 O处理，然后制备溶液约88:12丙酮：水。

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