专利内容由知识产权出版社提供
专利名称：Preparation of a heat-stable lactic acid发明人：Santi Kulprathipanja,Gregory F.
Maher,Thomas W. Lorsbach
申请号：US08/363662申请日：19941223公开号：US05488156A公开日：19960130
摘要：Lactic acid formed via fermentation generally is susceptible to the developmentof color bodies when heated to temperatures of approximately 180° C. and above. Colordevelopment appears to result from carbonization of small amounts of carbohydrates.Consequently a heat- stable lactic acid may be produced by subjecting an aqueoussolution of lactic acid to temperatures between about 180 and 230° C. for a timesufficient to carbonize the carbohydrates, with subsequent removal of the color bodiesusing standard decolorants such as activated charcoal. Heat treatment may be appliedeither directly to the broth or to an aqueous solution resulting from one or moreprocessing steps applied to the fermentation broth.
申请人：UOP
代理人：Thomas K. McBride,Eugene I. Snyder
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