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- Title
BIOETHANOL PRODUCTION FROM OLIVE SOLID WASTE USING SIMULTANEOUS SACCHARIFICATION AND FERMENTATION PROCESS.
- Authors
Al-Rubaie, Sundus Khudair; Abdulhay, Hind Suhail
- Abstract
Olive solid waste has been subject to numerous studies to produce ethanol. The process of converting olive solid waste into biofuel (ethanol) depends on the presence of the effects of microorganisms and enzymes on biological sources. The hydrolysis of various components in lignocellulose materials into fermentable sugars and fermentation of the sugars into ethanol fuel. The biomass olive residues were used as a raw material for the production of bioethanol through the use of preliminary treatments and the use Saccharomyces cerevisiae as fermentable yeast. In this study, for the purpose of obtaining a high concentration of ethanol from lignocellulosic materials, olive solid wastes were pretreated with dilute sulfuric acid (H2SO4 2%), dilute hydrochloric acid (HCl 5%), liquid ammonia (NH4OH 20%) and Cellulase. The effect of these pretreatments on the raw material used to convert cellulose and hemicellulose into monosaccharaides and the production of ethanol was observed during the fermentation process using Saccharomyces cerevisiae under anaerobic conditions. When using olive solid waste powder, all pretreatment methods (dilute acids, liquid ammonia and cellulase) were found to be efficient for effective dissolution of cellulose and hemicellulose into monosaccharaides. Based on the results obtained from fermentation processes we can conclude that the yeast belong to Saccharomyces cerevisiae strain, are high ethanol production and high bioethanol yielding using simultaneous saccharification and fermentation process (SSF) of olive solid waste, the average yield of ethanol was 3.92 g/10 g dry olive solid wastes. The study recommended that olive waste can be used as a raw material for the production of ethanol, which can be used as an alternative biofuel to reduce the phenomenon of environmental pollution and does not affect food security
- Subjects
ETHANOL as fuel; OLIVE; SACCHAROMYCES; HYDROCHLORIC acid; CHLORINE compounds
- Publication
Biochemical & Cellular Archives, 2021, Vol 21, Issue 1, p555
- ISSN
0972-5075
- Publication type
Article