Bioethanol production from fungal sources using low-cost agro-industrial waste products
tarafından
Evcan, Ezgi.
Başlık
:
Bioethanol production from fungal sources using low-cost agro-industrial waste products
Yazar
:
Evcan, Ezgi.
Yazar Ek Girişi
:
Evcan, Ezgi.
Yayın Bilgileri
:
[s.l.]: [s.n.], 2012.
Fiziksel Tanımlama
:
xii, 85 leaves.: ill. + 1 computer laser optical disc.
Özet
:
In recent years, the rapid increase in environmental problems, greenhouse gas emissions, fuel prices and the unlimited consumption of fuel stocks made people search for some alternative energy sources. Bioethanol is one of the most popular alternative sources with its many beneficial features. Considering the sugar content of fruit pomaces, which are the waste of fruit juice industry, are very convenient and cheap fermentation raw materials for production of bioethanol. The aim of this study was to create a renewable alternative for fossil fuel and to provide a viable solution to multiple environmental problems simultaneously creating a sink for waste utilization and optimize bioethanol production from apple pomace hydrolysate using Trichoderma harzianum, Aspergillus sojae and Saccharomyces cerevisiae by statistical methods. Here, screening and optimization steps were conducted in order to determine the significant factors and their optimum levels. Factors such as inoculation rate of A.sojae and T.harzianum and agitation speed were considered as factor variables, whereas the response variable was bioethanol production. According to the results of the screening process, inoculation rate of S.cerevisiae was fixed as 4% and aeration method as vented. In the optimization step, levels of the other factors were enlarged. The highest bioethanol production and yield on substrate were 8.748 g/l and 0.946, respectively. Higher concentrations of inoculation rates of T.harzianum and A.sojae (6%) and agitation speed of 200 rpm led to maximum bioethanol production. Furthermore, the results pointed out that using cocultures because of its synergistic interactions is an effective way for production of bioethanol.
Konu Başlığı
:
Agricultural wastes as fuel.
Fermentation.
Alcohol as fuel.
Yazar Ek Girişi
:
Tarı, Canan.
Tüzel Kişi Ek Girişi
:
İzmir Institute of Technology. Biotechnology and Bioengineering.
Tek Biçim Eser Adı
:
Thesis (Master)--İzmir Institute of Technology: Biotechnology and Bioengineering.
İzmir Institute of Technology: Biotechnology and Bioengineering--Thesis (Master).
Elektronik Erişim
:
Library | Materyal Türü | Demirbaş Numarası | Yer Numarası | Durumu/İade Tarihi |
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IYTE Library | Tez | T001019 | TP360 .E92 2012 | Tez Koleksiyonu |