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US07972826B2 Methods for reducing enzyme consumption in second generation bioethanol fermentation in the prescence of lignin 有权
第二代生物乙醇发酵中木质素测定中消耗酶消耗的方法

  • Patent Title: Methods for reducing enzyme consumption in second generation bioethanol fermentation in the prescence of lignin
  • Patent Title (中): 第二代生物乙醇发酵中木质素测定中消耗酶消耗的方法
  • Application No.: US12863601
    Application Date: 2009-02-02
  • Publication No.: US07972826B2
    Publication Date: 2011-07-05
  • Inventor: Jan Larsen , Henning Jørgensen
  • Applicant: Jan Larsen , Henning Jørgensen
  • Applicant Address: DK Fredericia
  • Assignee: Inbicon A/S
  • Current Assignee: Inbicon A/S
  • Current Assignee Address: DK Fredericia
  • Agent Robert C. Casad, Jr.
  • Priority: DK200800146 20080201
  • International Application: PCT/IB2009/000172 WO 20090202
  • International Announcement: WO2009/095781 WO 20090806
  • Main IPC: C12P7/10
  • IPC: C12P7/10 ;  C12Q1/54 ;  C12N9/42
Methods for reducing enzyme consumption in second generation bioethanol fermentation in the prescence of lignin
Abstract:
Provided are methods of liquefaction, saccharification and fermentation of pre-treated lignocellulosic biomass in production of bioethanol. Addition of PEG or surfactant is effective to enhance cellulase hydrolysis yields at high dry matter (>20%) at surprisingly low concentrations compared with comparable results in low dry matter hydrolysis. This effect is most pronounced at comparatively low cellulase loading
Abstract(Chinese):

提供在生物乙醇生产中预处理的木质纤维素生物质的液化，糖化和发酵的方法。 与低干物质水解中可比较的结果相比，添加PEG或表面活性剂有助于在高干物质（> 20％）下以令人惊讶的低浓度提高纤维素酶水解产率。 在相对较低的纤维素酶负载量<7 FPU（g DM）-1下，这种作用最显着。 在高干物质含量下，通过加入少量的PEG或表面活性剂可以减少纤维素酶消耗而不损失水解产率。

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