Bioethanol production by immobilized Saccharomyces Cerevisiae using different lignocellulesic materials
Other Title(s)
إنتاج الإيثانول الحيوي من بعض المخلفات الزراعية باستخدام خميرة الخباز بنظام التثبيت
Dissertant
al-Kafarnah, Afaf Dhib Abd al-Rahman
Thesis advisor
al-Bashiti, Tariq Abd al-Qadir
al-Kahlut, Kamal al-Abd Muhammad
Comitee Members
al-Qishawi, Abbud Yasir
al-Lahham, Nahid Ali
University
Islamic University
Faculty
Faculty of Science
Department
Department of Biological Science
University Country
Palestine (Gaza Strip)
Degree
Master
Degree Date
2015
English Abstract
Ethanol from biomass is an attractive and sustainable energy source for transportation fuel to substitute gasoline.
Second generation ethanol production utilizes cheaper and non-food feed stocks like lignocelluloses or municipal solid waste, could make ethanol more competitive to fossil fuels.
Basically, most of the raw materials used for the production of bioethanol were corn grain and sugar cane.
However, it is also important to see the potential of the other agricultural raw materials rich in fermentable carbohydrates such as tomato wastes and wheat straw since it is available in Palestine and cheaper compared to the others.
The aim of the present study is the production of low cost cellulosic ethanol using basically the agro wastes like tomato waste and wheat straw and make a comparison between the efficiency of free and immobilized yeast cells in calcium alginate matrix with microwave-assisted acidic pretreatment.
In this study we have investigate the efficiency of immobilization technique for bioethanol production using Saccharomyces cerevisiae strain which isolated from yogurt.
This strain was identified according to morphological and biochemical characterization tests.
Microwave-assisted acidic pretreatment were performed for both wheat straw and tomato waste and show high improvement reach to 45% in reducing sugar amount compared with convection mode of heating of dilute 7%HCl and 5% H2SO4 hydrolysis.
Calcium alginate was used as immobilization matrix for S.
cerevisiae.
The best calcium alginate concentration was 3% and 4 % for reference and isolated yeast respectively.
The immobilization technique gave higher ethanol yield compared with free system for tomato waste but lower yield with wheat straw.
The maximum amount of ethanol (641mg/g) produced by free cells when used straw pretreated with microwave-assisted 5%H2SO4 hydrolysis and (543.51 mg/g) for tomato waste using immobilized cells with microwave-assisted 7%HCl hydrolysis.
Main Subjects
No. of Pages
68
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Literature review.
Chapter Three : Materials and methods.
Chapter Four : Results.
Chapter Five : Discussion.
Chapter Six : Conclusion and recommendation.
References.
American Psychological Association (APA)
al-Kafarnah, Afaf Dhib Abd al-Rahman. (2015). Bioethanol production by immobilized Saccharomyces Cerevisiae using different lignocellulesic materials. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-687715
Modern Language Association (MLA)
al-Kafarnah, Afaf Dhib Abd al-Rahman. Bioethanol production by immobilized Saccharomyces Cerevisiae using different lignocellulesic materials. (Master's theses Theses and Dissertations Master). Islamic University. (2015).
https://search.emarefa.net/detail/BIM-687715
American Medical Association (AMA)
al-Kafarnah, Afaf Dhib Abd al-Rahman. (2015). Bioethanol production by immobilized Saccharomyces Cerevisiae using different lignocellulesic materials. (Master's theses Theses and Dissertations Master). Islamic University, Palestine (Gaza Strip)
https://search.emarefa.net/detail/BIM-687715
Language
English
Data Type
Arab Theses
Record ID
BIM-687715
