公开(公告)号：US20110207177A1

公开(公告)日：2011-08-25

申请号：US13125432

申请日：2009-10-29

申请人： Jun Sugiura ,  Atsushi Furujyo ,  Yaping Chao ,  Yuko Igarashi ,  Yuji Iwasaki ,  Masayuki Ichinomiya ,  Makoto Sakaino

发明人： Jun Sugiura ,  Atsushi Furujyo ,  Yaping Chao ,  Yuko Igarashi ,  Yuji Iwasaki ,  Masayuki Ichinomiya ,  Makoto Sakaino

IPC分类号： C12P7/14 ,  C12P19/00

CPC分类号： C12P19/02 ,  C12P7/10 ,  C12P2201/00 ,  C13K1/02 ,  Y02E50/16

摘要： The present invention provides a pretreatment method which enables the promotion of the enzymatic glycosylation of lignocellulose under relatively mild conditions by using a tree bark as a raw material with less energy. Specifically the present invention provides a step for producing a sugar from a tree bark, which is characterized by having the following steps: an alkali treatment step of immersing the tree bark in an alkali compound solution; a refining treatment step of refining the alkali treated tree bark mechanically into fine pieces; and an enzymatic glycosylation step of glycosylating the refined tree bark with an enzyme. The present invention also provides a method of producing an ethanol.

摘要翻译： 本发明提供了一种预处理方法，其能够通过使用树皮作为较少能量的原料，在相对温和的条件下促进木质纤维素的酶促糖基化。 具体地说，本发明提供了一种从树皮生产糖的步骤，其特征在于具有以下步骤：将树皮浸入碱性化合物溶液中的碱处理步骤; 将碱处理的树皮机械地精制成细碎的精制处理步骤; 以及酶的糖基化步骤，用酶将精制树皮糖基化。 本发明还提供一种生产乙醇的方法。