公开(公告)号：US20150175984A1

公开(公告)日：2015-06-25

申请号：US14407982

申请日：2013-06-20

Applicant: Biochemtex S.p.A

Inventor： Stefano Paravisi ,  Laura Volpati ,  Chiara Giorcelli ,  Elisa Raccagni ,  Piero Ottonello ,  Francesco Cherchi

IPC: C12N9/24 ,  C12P7/10

CPC classification number: C12N9/2402 ,  C12N9/2482 ,  C12N9/2494 ,  C12P7/10 ,  C12P21/00 ,  C12Y302/01004 ,  C12Y302/01021 ,  C12Y302/01037 ,  C12Y302/01058 ,  C12Y302/01074 ,  C12Y302/01091 ,  C12Y302/01136 ,  Y02E50/16

Abstract: A process produces at least a first enzyme from a host cell, wherein the first enzyme is capable of hydrolyzing a first pre-treated ligno-cellulosic biomass. The process comprises the step of cultivating the host cell to produce at least the first enzyme for a cultivation time, wherein the cultivation of the host cell occurs in a sugar depleted cultivation environment comprising the host cell, water and a solid composition comprising a complex sugar of the solid composition and a lignin of the solid composition. In such a process, the solid composition is obtained from a second pre-treated ligno-cellulosic biomass, comprising a complex sugar of the second pre-treated ligno-cellulosic biomass and a lignin of the second pre-treated ligno-cellulosic biomass; and the ratio of the total amount of the complex sugars of the solid composition to the total amount of the lignin of the solid composition is greater than zero and less than the ratio of the total amount of the complex sugars of the second pre-treated ligno-cellulosic biomass to the total amount of the lignin of the second pre-treated ligno-cellulosic biomass.

Abstract translation: 一种方法从宿主细胞产生至少第一种酶，其中第一种酶能够水解第一种经预处理的木质纤维素生物质。 该方法包括培养宿主细胞以产生至少第一种酶用于培养时间的步骤，其中宿主细胞的培养发生在包含宿主细胞，水和包含复合糖的固体组合物的贫糖培养环境中 的固体组合物和固体组合物的木质素。 在这种方法中，固体组合物由第二预处理的木质纤维素生物质获得，其包含第二预处理的木质纤维素生物质的复合糖和第二预处理的木质纤维素生物质的木质素; 并且固体组合物的复合糖的总量与固体组合物的木质素总量的比例大于零并且小于第二预处理木质素的复合糖的总量的比例 - 纤维素生物质相对于第二预处理的木质纤维素生物质的木质素的总量。

公开(公告)号：US20140339467A1

公开(公告)日：2014-11-20

申请号：US14363566

申请日：2012-12-20

Applicant: Biochemtex S.p.A.

Inventor： Guliz Arf Elliott ,  Danilo De Faveri ,  Francesco Cherchi ,  Simone Ferrero ,  Paolo Torre

IPC: C08B1/00 ,  C12P19/02 ,  C12P19/14

CPC classification number: C08B1/003 ,  C08H8/00 ,  C08L97/005 ,  C08L97/02 ,  C12P19/02 ,  C12P19/14 ,  C12P2203/00 ,  D21C1/02 ,  D21C5/005

Abstract: Disclosed in this specification is a lignin composition having unique characteristics relative to its characteristics as found in its natural environment. The lignin has been modified so that more lignin decomposes at the lower lignin decomposition temperature than decomposes at the higher lignin decomposition temperature and the lignin composition has a very high surface area relative to naturally occurring lignin compositions.

Abstract translation: 在本说明书中公开的是具有相对于其天然环境中发现的特征的独特特征的木质素组合物。 已经修饰了木质素，使木质素在较低的木质素分解温度下分解而不是在较高的木质素分解温度下分解，木质素组合物相对于天然存在的木质素组合物具有非常高的表面积。