東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Integration of Clostridium thermocel...

Kothari, Ninad Dushyant.

FindBook

Google Book

Amazon

博客來

Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass./
作者:	Kothari, Ninad Dushyant.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	275 p.
附註:	Source: Dissertations Abstracts International, Volume: 80-04, Section: B.
Contained By:	Dissertations Abstracts International80-04B.
標題:	Alternative Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10787834
ISBN:	9780438429550

Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass.
Kothari, Ninad Dushyant.

Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 275 p.

Source: Dissertations Abstracts International, Volume: 80-04, Section: B.

Thesis (Ph.D.)--University of California, Riverside, 2018.

This item is not available from ProQuest Dissertations & Theses.

There is an urgent need to replace petroleum-based transportation fuels with renewable and sustainable fuels to reduce the deteriorating impact of greenhouse gas emissions on climate change. Biofuels would not only provide a sustainable energy source but also help countries reduce their dependence on imported petroleum. Ethanol made from corn starch and cane sugar is presently the largest biotechnology-based product and commands a large share of the alternative fuels market. However, it is important to move towards making ethanol from lignocellulosic biomass that, unlike corn starch and cane sugar, does not have an important alternative use as food. However, biological conversion of this plentiful material suffers from high enzyme costs that stymie competitiveness. Clostridium thermocellum is a multifunctional ethanol producer capable of enzyme production, enzymatic saccharification, and fermentation that is fundamental to the consolidated bioprocessing (CBP) approach of ethanol production from lignocellulosic biomass. CBP eliminates the supplementation of expensive enzymes that are required in the traditional approach of ethanol production. However, the recalcitrance of lignocellulosic biomass is still a hindrance to effective ethanol production. C. thermocellum is unable to achieve complete biomass digestion and sugar release without pretreatment of lignocellulosic biomass. This work focuses on extensive process development for effective integration of CBP with four different thermochemical pretreatments of switchgrass. First, cellulose loading for C. thermocellum flask fermentations was optimized to understand the impacts of substrate structural features on digestion by C. thermocellum under non-inhibitory conditions. Next, the impact of various cellulose properties including, but not limited to, crystallinity, surface area, pore size, and degree of polymerization, was studied on C. thermocellum digestion of model cellulosic substrates compared to fungal enzymatic hydrolysis. With an extensive understanding of C. thermocellum fermentations on model substrates the interdependency of switchgrass structural features with thermochemical and biological digestion was studied. Process configurations to achieve complete cellulose solubilization and total sugar release from switchgrass were finally defined. The comprehensive nature of integration of four different thermochemical and two different biological approaches in this work is unparalleled and could provide a platform to systematically develop cost effective ethanol production from lignocellulosic biomass in the future.

ISBN: 9780438429550Subjects--Topical Terms:

1035473
Alternative Energy.

Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass.
LDR:03870nmm a2200349 4500 001 2208076
005 20190929184212.5
008 201008s2018 ||||||||||||||||| ||eng d
020 $a 9780438429550
035 $a (MiAaPQ)AAI10787834
035 $a (MiAaPQ)ucr:13297
035 $a AAI10787834
040 $a MiAaPQ $c MiAaPQ
100 1 $a Kothari, Ninad Dushyant. $3 3435088
245 1 0 $a Integration of Clostridium thermocellum Consolidated Bioprocessing With Thermochemical Pretreatments for Fuel Ethanol Production From Switchgrass.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 275 p.
500 $a Source: Dissertations Abstracts International, Volume: 80-04, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Wyman, Charles E.
502 $a Thesis (Ph.D.)--University of California, Riverside, 2018.
506 $a This item is not available from ProQuest Dissertations & Theses.
506 $a This item must not be sold to any third party vendors.
520 $a There is an urgent need to replace petroleum-based transportation fuels with renewable and sustainable fuels to reduce the deteriorating impact of greenhouse gas emissions on climate change. Biofuels would not only provide a sustainable energy source but also help countries reduce their dependence on imported petroleum. Ethanol made from corn starch and cane sugar is presently the largest biotechnology-based product and commands a large share of the alternative fuels market. However, it is important to move towards making ethanol from lignocellulosic biomass that, unlike corn starch and cane sugar, does not have an important alternative use as food. However, biological conversion of this plentiful material suffers from high enzyme costs that stymie competitiveness. Clostridium thermocellum is a multifunctional ethanol producer capable of enzyme production, enzymatic saccharification, and fermentation that is fundamental to the consolidated bioprocessing (CBP) approach of ethanol production from lignocellulosic biomass. CBP eliminates the supplementation of expensive enzymes that are required in the traditional approach of ethanol production. However, the recalcitrance of lignocellulosic biomass is still a hindrance to effective ethanol production. C. thermocellum is unable to achieve complete biomass digestion and sugar release without pretreatment of lignocellulosic biomass. This work focuses on extensive process development for effective integration of CBP with four different thermochemical pretreatments of switchgrass. First, cellulose loading for C. thermocellum flask fermentations was optimized to understand the impacts of substrate structural features on digestion by C. thermocellum under non-inhibitory conditions. Next, the impact of various cellulose properties including, but not limited to, crystallinity, surface area, pore size, and degree of polymerization, was studied on C. thermocellum digestion of model cellulosic substrates compared to fungal enzymatic hydrolysis. With an extensive understanding of C. thermocellum fermentations on model substrates the interdependency of switchgrass structural features with thermochemical and biological digestion was studied. Process configurations to achieve complete cellulose solubilization and total sugar release from switchgrass were finally defined. The comprehensive nature of integration of four different thermochemical and two different biological approaches in this work is unparalleled and could provide a platform to systematically develop cost effective ethanol production from lignocellulosic biomass in the future.
590 $a School code: 0032.
650 4 $a Alternative Energy. $3 1035473
650 4 $a Chemical engineering. $3 560457
650 4 $a Environmental engineering. $3 548583
690 $a 0363
690 $a 0542
690 $a 0775
710 2 $a University of California, Riverside. $b Chemical and Environmental Engineering. $3 1674133
773 0 $t Dissertations Abstracts International $g 80-04B.
790 $a 0032
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10787834