公开(公告)号：US20150299739A1

公开(公告)日：2015-10-22

申请号：US14686815

申请日：2015-04-15

Applicant: SHELL OIL COMPANY

Inventor： Peter John Edward HARLICK ,  David Matthew BROWN

IPC: C12P7/14

CPC classification number: C12P7/14 ,  C08H8/00 ,  C12P7/10 ,  C12P19/14 ,  C12P2201/00 ,  C12P2203/00 ,  C13K1/02 ,  Y02E50/16

Abstract: A method to produce a fermentation product comprising: providing a biomass material; pretreating the biomass material by contacting the biomass material with a solution containing at least one alpha-hydroxysulfonic acid to produce a pretreated biomass mixture containing at least one fermentable sugar; adding one or more saccharification enzymes to the pretreated biomass mixture, wherein the pretreated biomass mixture has a suitable condition for the one or more saccharification enzymes; performing enzymatic hydrolysis of cellulose by the one or more saccharification enzymes for greater than 24 hours to generate a hydrolysate; and adding at least one fermentation microorganism to the hydrolysate under a suitable condition for simultaneous saccharification and fermentation.

Abstract translation: 一种产生发酵产物的方法，包括：提供生物质材料; 通过使生物质材料与含有至少一种α-羟基磺酸的溶液接触以产生含有至少一种可发酵糖的预处理的生物质混合物来预处理生物质材料; 向预处理的生物质混合物中加入一种或多种糖化酶，其中预处理的生物质混合物具有一种或多种糖化酶的合适条件; 通过一种或多种糖化酶进行纤维素酶水解大于24小时以产生水解产物; 并在合适的条件下向所述水解产物中加入至少一种发酵微生物以同时进行糖化和发酵。