02922ntm a2200361 i 4500 vtls000105459 KUKTEM 20251117113402.0 190125t20182018my a f am 001 0 eng d THE0000150(Local) 201905131429 nazirah 201902271018 nazri 201902271011 nazri 201901251032 nazri UMP eng UMP rda FIST .H37 2018 r Thesis Ahmed Hashabra, Amani Mohammad, author. Optimization of enzymatic pretreatment and saccharification processes of sawdust for bioethanol production / Amani Mohammad Ahmed Hashabra Kuantan, Pahang : UMP, 2018 © 2018 xv, 132 pages : illustrations (some color) ; 30 cm. + 1 CD-ROM text rdacontent unmediated rdamedia computer rdamedia volume rdacarrier computer disc rdacarrier text file PDF rda Faculty of Industrial Sciences and Technology Thesis (Master of Science) -- Universiti Malaysia Pahang – 2018 Includes bibliographical references widespread interest has been devoted to the production of ethanol from sustainable renewable materials to compensate for the impending fossil fuel crisis. Lignocellulosic biomasses, such as sawdust and others, are an attractive, abundant, cheap and non-food competitive biomass feedstock for cheaper ethanol production. However, the recalcitrant structure of these materials necessitates a pretreatment process for a complete or partial breakdown of the lignin in the cell wall of these biomasses. Most of the pretreatment techniques require the use of chemicals and energy which poses a threat to the environment and the whole process as well. This study embarked on a statistical optimization of the pretreatment and saccharification processes of sawdust for bioethanol production in an environmentally-friendly manner. The study process involved the screening of the process parameters using One-Factor-At-a-Time (OFAT) to determine the optimum range and significance of each parameter in the was evaluated for bioethanol production using Saccharomyces cerevisiae as the fermentation organism. The bioethanol yield based on the total sugar content and biomass content was achieved as 29.4% (w/v) and 9.78% (w/v), respectively. These enzymatic pretreatment and saccharification processes can be considered as one of the renewable efforts towards reducing greenhouse gas emissions and environmental protection from global warming. Faculty of Industrial Sciences and Technology Dissertations Universities and colleges Disertations Theses 0 0 lcc 0 1 10000 10000 2019-09-04 0 FIST .H37 2018 r Thesis 0000126560 2019-09-04 00:00:00 1 2019-09-04 THESIS 0 0 lcc 0 1 10000 10000 2019-09-04 0 CD 11533 | FIST .H37 2018 r Thesis 0000126561 2019-09-04 00:00:00 1 2019-09-04 THESIS VIRTUA40 7777 7783 VTLSSORT0080*0200*0400*0900*1000*2450*2640*2641*3000*3360*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992