公开(公告)号：US10233570B2

公开(公告)日：2019-03-19

申请号：US15032649

申请日：2014-10-31

Applicant: Biochemtex S.p.A.

Inventor： Piero Ottonello ,  Paolo Torre ,  Stefano Paravisi ,  Chiara Prefumo ,  Pietro Pastorino ,  Dario Giordano

IPC: D01G9/14 ,  C12P19/14 ,  C12P19/02 ,  C08B37/00 ,  C08H8/00 ,  C12P7/10

Abstract: It is disclosed a process for increasing the enzymatic accessibility of a thermally treated ligno-cellulosic biomass feedstock which has been thermally treated at a severity factor. The process comprises a step of fiber shives reduction, for reducing the amount of long shives. The thermally treated ligno-cellulosic biomass after fiber shives reduction is characterized by having an increased glucans accessibility and by forming a slurry having a low viscosity.

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：US09533927B2

公开(公告)日：2017-01-03

申请号：US15032666

申请日：2014-10-31

Applicant: Biochemtex S.p.A.

Inventor： Piero Ottonello ,  Paolo Torre ,  Dario Giordano ,  Stefano Paravisi ,  Chiara Prefumo ,  Pietro Pastorino

IPC: C07C29/132 ,  D21B1/00 ,  D21B1/02 ,  D21B1/04 ,  D21B1/06 ,  C07C31/18 ,  C07C31/27

CPC classification number: C07C29/132 ,  C07C31/18 ,  C07C31/202 ,  C07C31/205 ,  C07C31/27 ,  D21B1/00 ,  D21B1/02 ,  D21B1/04 ,  D21B1/06 ,  D21B1/061 ,  D21B1/36

Abstract: A process for producing polyols from a low viscosity slurry comprising a thermally treated ligno-cellulosic biomass which has been subjected to a fiber shives reduction step is provided. Specifically, a continuous process for catalyzing the formation of polyol products, such as ethylene glycol and propylene glycol, from the low viscosity slurry is provided.

Abstract translation: 提供了一种从低粘度浆料制备多元醇的方法，其包括已经经历纤维减少步骤的经热处理的木质纤维素生物质。 具体地说，提供了从低粘度浆料催化多元醇产物如乙二醇和丙二醇的形成的连续方法。