Acetone-butanol-ethanol (ABE) fermentation by clostridium acetobutylicum using xylose recovered from birch wood hydrolysis

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Chandgude, Vijaya Ayyanar Ramachandran, Praniesh 2018-10-05T07:14:01Z 2018-10-05T07:14:01Z 2018-10-02
dc.description.abstract The focus of this study is to find the efficiency of xylose and birch wood hydrolysate in Acetone-butanol-ethanol (ABE) fermentation. There is a need to find an effective raw material for the commercial production of butanol which was the reason for this work to be carried out. The literature studies include the background and biochemistry of the process, different types of microorganisms used for this process, pretreatment methods for hydrolysate and detoxification of hydrolysate. The experimental part of this thesis is about finding the effect of glucose and xylose, effect of electron carriers, effect of different concentration of the potent electron carrier and the efficiency of birch wood hydrolysate in ABE fermentation. The results obtained are compared with the results from previous works of different researchers and the discussion are done based on it. The results showed that 60:40 (xylose:glucose) is the best ratio as it yielded 7.99 g/L of overall solvent concentration and also lower residual acid of about 2.68 g/L. Methylene blue was found to give higher solvent concentration of about 9.48 g/L when compared to other electron carriers. The concentration of 0.1 mM methylene blue produced higher solvent concentration and A:B ratio which was about 9.47 g/L and 2.82:1. From this work, it was found that birch wood hydrolysate can be very effective for the ABE fermentation if proper pretreatment and detoxification methods are carried out. en
dc.format.extent 30
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Acetone-butanol-ethanol (ABE) fermentation by clostridium acetobutylicum using xylose recovered from birch wood hydrolysis en
dc.type G2 Pro gradu, diplomityö fi Kemian tekniikan korkeakoulu fi
dc.subject.keyword ABE fermentation en
dc.subject.keyword birch wood hydrolysate en
dc.subject.keyword xylose en
dc.subject.keyword electron carrier en
dc.identifier.urn URN:NBN:fi:aalto-201810055273
dc.programme.major Chemical and Process Engineering fi
dc.programme.mcode CHEM3043 fi
dc.type.ontasot Master's thesis en
dc.type.ontasot Diplomityö fi
dc.contributor.supervisor Banksr, Sandip
dc.programme Master's Programme in Chemical, Biochemical and Materials Engineering fi
dc.location PK fi
local.aalto.electroniconly yes
local.aalto.openaccess yes

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