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008			080103s2007 th uu|m rtt 0| a1eng d
035			_a.b12035865
099		9	_aAIT Thesis no.FB-07-01
100	0		_aBoualy Vongvisith
245	1	0	_aBio-ethanol production by simultaneous cassava starch hydrolysis and fermentation using screened microorganisms
260			_aPathum Thani, Thailand : _bAsian Institute of Technology, _c2007
300			_a58 leaves : _bill.
490	1		_aThesis ; _vno. FB-07-01
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Food Engineering and Bioprocess Technology, School of Environment, Resources and Development
502			_aThesis (M.Sc.) - Asian Institute of Technology, 2007
520			_aIn the present study, the main aim was to select and characterize microorganisms capable of simultaneous cassava starch digestion and ethanol production. Eight samples were collected from waste water treatment areas of the Siam Modified Starch Co. Ltd., Pathumthani in Thailand. There were thirty seven strains which were able to hydrolyze cassava starch. Eight of these strains were able to produce ethanol simultaneously. The strain of SMS111 gave highest ethanol among screened strains and gave higher level of ethanol production compared to these of standard strain (Saccharomyces diastaticus TISTR 5221 and Saccharomyces cerevisiae TISTR 5049) under the test conditions. Ethanol concentration of 46.5 and 44.66g/l was obtained in modified MRS added with 2% precooked cassava starch at 37°C and 42°C respectively obtained. Ethanol concentration of 44.5 and 43.45 g/l was obtained in modified MRS added with non-cooked cassava starch at 37 °C and 42 °C respectively. The ethanol production was found to be growth associated. Ethanol accumulation was observed during the whole period, with an increased accumulation among the logarithmic growth stage in all tested conditions. The strain SMS1/1 was also able to grow and produce ethanol in non-cooked starch. This is of great significance as there is considerable energy saving possible
650		0	_aCassava _zThailand
650		0	_aAlcohol _zThailand
700	1		_aRakshit, Sudip Kumar, _eChairperson
700	0		_aAthapol Noomhorm, _eExamination Committee
700	1		_aJayasuriya, H.P.W., _eExamination Committee
710	2		_aGovernment of Sweden (SIDA), _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. FB-07-01
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B11017
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