公开(公告)号：US5324649A

公开(公告)日：1994-06-28

申请号：US957973

申请日：1992-10-07

申请人： Raymond E. Arnold ,  Nathaniel T. Becker ,  Matthew G. Boston ,  Aino Mansikkamaki ,  Curran M. Simpson ,  Daniel J. Wendt

发明人： Raymond E. Arnold ,  Nathaniel T. Becker ,  Matthew G. Boston ,  Aino Mansikkamaki ,  Curran M. Simpson ,  Daniel J. Wendt

IPC分类号： C11D3/37 ,  C11D3/386 ,  C11D17/00 ,  C12N9/98 ,  C12N11/02 ,  C12N11/04 ,  C12N11/14 ,  C11D10/00 ,  C12N11/08 ,  D06M16/00

CPC分类号： C11D3/3753 ,  C11D17/0039 ,  C11D3/3776 ,  C11D3/38672 ,  C12N11/02 ,  C12N11/04 ,  C12N11/14 ,  C12N9/98

摘要： A granular enzyme composition is produced, having reduced tendencies to form dust and leave residue, and exhibiting improved stability and delayed release characteristics. The granular composition comprises a core, an enzyme layer and an outer coating layer. The enzyme layer, and optionally the core and outer coating layer, contain a vinyl polymer. The vinyl polymer is preferably a hydrolyzed polyvinyl alcohol or copolymer thereof. The hydrolyzed polyvinyl alcohol has varying degrees of hydrolysis in the core, enzyme layer and outer coating layer. Also disclosed are methods for making such enzyme-containing granules, the methods having greatly reduced processing time.

摘要翻译： 产生颗粒状酶组合物，具有减少的形成灰尘并留下残留物的倾向，并表现出改进的稳定性和延迟释放特性。 颗粒组合物包含核，酶层和外涂层。 酶层和任选的核心和外部涂层含有乙烯基聚合物。 乙烯基聚合物优选为水解的聚乙烯醇或其共聚物。 水解的聚乙烯醇在芯，酶层和外涂层中具有不同程度的水解。 还公开了制备这种含酶颗粒的方法，该方法大大减少了处理时间。