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Utilization of palm kernel cake as a renewable feedstock for fermentative hydrogen production

Azman, N. F. and Abdeshahian, P. and Kadier, A. and Shukor, H. and Al Shorgani, N. K. N. and Hamid, A. A. and Kalil, M. S. (2016) Utilization of palm kernel cake as a renewable feedstock for fermentative hydrogen production. Renewable Energy, 93 . pp. 700-708. ISSN 0960-1481

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Abstract

Fermentative hydrogen generation was studied using palm kernel cake (PKC) as sustainable cellulosic biomass. PKC was subjected to an acid hydrolysis approach using dilute H2SO4 (7% v/v). PKC hydrolysate obtained was then diluted (70%) and used as a substrate for hydrogen generation. Chemical analysis showed that the main fermentable sugars in diluted PKC hydrolysate were glucose, xylose and mannose with the concentrations of 2.75 g/L, 2.60 g/L and 27.75 g/L, respectively. Hydrogen production was carried out by the cultivation of Clostridium acetobutylicum YM1 on PKC hydrolysate. The effect of incubation temperature, the initial pH of culture medium and microbial inoculum size on hydrogen production was studied using a statistical model. The analysis of the model generated showed that the initial pH value of the culture medium and inoculum size had significant effects on the hydrogen production. The study showed that the optimum conditions for the biohydrogen production were 30.57 °C temperature, pH 5.5 and 20% inoculum size. A verification experiment was performed in the optimum conditions determined. Experimental results of the verification test showed that a cumulative hydrogen volume of 1575 ml/L was generated with consuming 2.75 g/L glucose, 2.20 g/L xylose and 16.31 g/L mannose.

Item Type:Article
Uncontrolled Keywords:Chemical analysis, Clostridium, Glucose, Hydrolysis, pH effects, Acid hydrolysis, Clostridium acetobutylicum, Fermentable sugars, Optimisations, Palm kernel cake, Hydrogen production, bacterium, biomass power, concentration (composition), crop residue, experimental study, fermentation, hydrogen, hydrolysis, inoculation, optimization, renewable resource, substrate, sugar, sustainability, Clostridium acetobutylicum
Subjects:T Technology > T Technology (General)
Divisions:Malaysia-Japan International Institute of Technology
ID Code:71583
Deposited By: Widya Wahid
Deposited On:20 Nov 2017 08:28
Last Modified:20 Nov 2017 08:28

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