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008 100205t2009 my a f m 000 0 eng d
020 _aTHE0004792(Local)
039 9 _a201905151222
_bsmfh
_c201108030914
_dFida
_c201107132306
_dVLOAD
_c201002081445
_dkam
_y201002051607
_zkam
040 _aUMP
090 _aTP593 .M86 2009 rs Bc.
100 0 _aMuna Suhaili Zakaria
245 1 0 _aProduction of bioethanol from tapioca starch using Saccharomyces cerevisiae :
_beffects of pH and air flow rate /
_cMuna Suhaili Binti Zakaria
246 3 _aProduction of bioethanol from tapioca starch using Saccharomyces cerevisiae
_h[computer file]
_beffects of pH and air flow rate
260 _aKuantan :
_bUMP,
_c2009
300 _a47 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 computer disc
502 _aProject paper (Bachelor of Chemical Engineering (Biotechnology)) -- Universiti Malaysia Pahang - 2009
520 3 _aThe effects of pH and air flow rate on fermentation process for bioethanol production in 2 L bioreactor using Saccharomyces cerevisiae were studied. Other conditions such as temperature, agitation and inoculum concentration were fixed at specific values. Two-step enzymatic hydrolysis of tapioca starch by commercially available α-amylase and glucoamylase were employed at the beginning of the process for glucose production. The cell growth study was conducted in order to observe the cell growth profile in the resulted sugar. The fermentation study was conducted in aerobic condition using 2 L bioreactor with various pHs (4, 5, and 6) and air flow rates (1.0, 1.5 and 2.0 L/min). Based on the results, the optimum pH and air flow rate were pH 5 and 1.0 L/min respectively. The highest yield of ethanol was 3.64 g/L which produced at pH and air flow rate at 1.0 L/min.
650 0 _aAlcohol
650 0 _aFermentation
999 _aVIRTUA40
_c1669
_d1675
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992