...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Bioethanol production by inherent enzymes from rye and wheat with addition of organic farming cheese whey
【24h】

Bioethanol production by inherent enzymes from rye and wheat with addition of organic farming cheese whey

机译：黑麦和小麦中固有的酶与有机农业奶酪乳清的合成产生生物乙醇

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In organic farming, there is a strong effort to minimize the share of non-renewable resources (e.g. fossil fuels) and use only [preferably on-farm produced) bio-based energy and renewable raw materials, with the aim of achieving sustainable production systems and to become self-sufficient in energy. Throughout our studies, wheat and rye grain was used as raw material in bioethanol production with the purpose of producing in situ enzymes (during germination) for the hydrolysis of starch in the grains and compared with commercial amylase enzyme preparations. Whey permeate was incorporated into the grain in Simultaneous Saccharification and Fermentation (SSF) process to use a cheap nutrient and water source. The ethanol fermentations were completed by 190 h. The fermentation efficiency of germinated and un-germinated grains (without commercial enzymes) was compared with that of commercial enzymes in SSF and furthermore Autoamylolytical Quotient (AAQ) was calculated. On rye 72% yield of the theoretical was achieved by applying commercial enzymes, which decreased only by 10%, when in situ enzymes produced during germination were used alone. The obtained ethanol yields and high (90%) AAQ. values showed that rye is a suitable substrate for autoamylolytical processes. According to the low yields (<56%) and AAQs values for all examined wheat samples the results implied that the tested sorts of wheat grains were no efficient for use in autoamylolytical processes.
机译：在有机农业中，为了实现可持续的生产体系​​，人们正在大力减少不可再生资源（例如化石燃料）的份额，仅使用（最好是农场生产的）生物能源和可再生原料。并变得自给自足。在我们的整个研究过程中，小麦和黑麦谷物被用作生物乙醇生产的原料，目的是生产原位酶（发芽过程中）以水解谷物中的淀粉，并与商业淀粉酶制剂进行比较。在同时糖化和发酵（SSF）过程中将乳清渗透物掺入谷物中，以使用廉价的营养物和水源。乙醇发酵在190小时之前完成。将发芽和未发芽谷物的发酵效率（不含商业酶）与商业酶在SSF中的发酵效率进行了比较，并且还计算了自动淀粉商（AAQ）。在黑麦上，通过应用商业酶可达到理论产量的72％，当单独使用发芽过程中产生的原位酶时，其仅降低10％。获得的乙醇收率和高（90％）AAQ。值表明，黑麦是自动淀粉水解过程的合适底物。由于所有检查过的小麦样品的单产较低（<56％）和AAQs值，结果暗示所测试的小麦籽粒不能有效用于自动淀粉加工过程。

著录项

  • 来源
    《Fuel》 |2011年第11期|p.3323-3329|共7页
  • 作者

    Zsofia Kadar; Anne Deen Christensen; Mette Hedegaard Thomsen; Anne-Belinda Bjerre;

  • 作者单位

    Rise National Laboratory for Sustainable Energy, Technical University of Denmark, Biosystems Division, PO Box 49, DK-4000 Roskilde, Denmark;

    Rise National Laboratory for Sustainable Energy, Technical University of Denmark, Biosystems Division, PO Box 49, DK-4000 Roskilde, Denmark;

    Rise National Laboratory for Sustainable Energy, Technical University of Denmark, Biosystems Division, PO Box 49, DK-4000 Roskilde, Denmark;

    Rise National Laboratory for Sustainable Energy, Technical University of Denmark, Biosystems Division, PO Box 49, DK-4000 Roskilde, Denmark;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bioethanol; inherent enzyme; grain; whey; simultaneous saccharification and; fermentation (ssf);

    机译：生物乙醇固有酶粮食;乳清;同时糖化;以及发酵（ssf）;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号