Cogeneration of Cellobiose and Glucose from Pretreated Wood and Bioconversion to Lactic Acid : A Kinetic Study
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概要
- 論文の詳細を見る
Samples of Eucalyptus globulus wood were subjected to sequential treatments of delignification and swelling, and the solid residues were hydrolysed with a cellulase complex deficient in β-glucosidase activity. In experiments carried out at 45℃, the highest cellulose conversion(61.9%)was achieved in media containing 28 filter paper units/g using a liquor/solid ratio fo 30g/g. Models for the generation of cellobiose and glucose were developed assuming two sequential reactions(conversion of cellulose into cellobiose and hydrolysis of cellobiose to glucose)with end-product that results in competitive inhibition. Selected regression parameters were correlated with the operational conditions by means of empirical models(including linear and interaction terms)and a generalized calculation procedure that allows a close reproduction of data and shows a satisfactory ability for quantitative predictions was developed. Furhter experiments were carried out to study the bioconversion of hydrolysates by Lactobacillus delbrueckii into lactic acid. The kinetic modelling of the fermentation stage allowed a close interpretation of the experimental data.
- 公益社団法人日本生物工学会の論文
- 1999-06-25
著者
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Alonso Jose
Department Of Chemical Engineering University Of Vigo(campus Orense)
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Moldes Ana
Department Of Chemical Engineering University Of Vigo(campus Orense)
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PARAJO JUAN
Department of Chemical Engineering, University of Vigo(Campus Orense)
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Parajo Juan
Department Of Chemical Engineering University Of Vigo(campus Orense)