The effect of dilute acid pre-treatment process in bioethanol production from durian (Durio zibethinus) seeds waste
| Autor: | Teuku Meurah Indra Riayatsyah, K A Ghazali, H.B. Aditiya, Siti Fatihah Salleh, Teuku Meurah Indra Mahlia |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Earth and Environmental Science. 32:012058 |
| ISSN: | 1755-1315 1755-1307 |
| Popis: | Lignocellulosic biomass is one of the promising feedstocks for bioethanol production. The process starts from pre-treatment, hydrolysis, fermentation, distillation and finally obtaining the final product, ethanol. The efficiency of enzymatic hydrolysis of cellulosic biomass depends heavily on the effectiveness of the pre-treatment step which main function is to break the lignin structure of the biomass. This work aims to investigate the effects of dilute acid pre-treatment on the enzymatic hydrolysis of durian seeds waste to glucose and the subsequent bioethanol fermentation process. The yield of glucose from dilute acid pre-treated sample using 0.6% H2SO4 and 5% substrate concentration shows significant value of 23.4951 g/L. Combination of dilute acid pre-treatment and enzymatic hydrolysis using 150U of enzyme able to yield 50.0944 g/L of glucose content higher compared to normal pre-treated sample of 8.1093 g/L. Dilute acid pre-treatment sample also shows stable and efficient yeast activity during fermentation process with lowest glucose content at 2.9636 g/L compared to 14.7583g/L for normal pre-treated sample. Based on the result, it can be concluded that dilute acid pre-treatment increase the yield of ethanol from bioethanol production process. |
| Databáze: | OpenAIRE |
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