Bioethanol Production By Utilizing Cassava Peels Waste Through Enzymatic And Microbiological Hydrolysis

International Conference on Green and Renewable Energy Resources 2016

能源学;生态环境科学

Witantri, R.G.^1 ; Purwoko, T.^1 ; Sunarto^1 ; Mahajoeno, E.^1

Biology, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Surakarta, Indonesia^1

关键词: Bio-ethanol production;    Cellulase enzyme;    Completely randomized designs;    Effective microbes;    Ethanol concentrations;    Fermentation process;    Fermentation time;    Quantitative measurement;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/75/1/012014/pdf
DOI  :  10.1088/1755-1315/75/1/012014

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Cassava peels waste contains, cellulose which is quite high at 43.626%, this is a potential candidate as a raw for bioethanol production. The purpose of this study was to determine the performance of the enzymatic hydrolysis, microbiological (Effective microbe) and fermentation in cassava peel waste is known from the results of quantitative measurement of multiple ethanol parameters (DNS Test, pH, ethanol concentration). This research was carried out in stages, the first stage is hydrolysis with completely randomized design with single factor variation of the catalyst, consisting of three levels ie cellulase enzymes, multienzyme and effective microbial EM4. The second stage is fermentation with factorial randomized block design, consisting of three groups of variations of catalyst, and has two factors: variations of fermipan levels 1, 2, 3% and the duration of fermentation, 2,4,6 days. The parameters in the test is a reducing sugar, pH and concentration of ethanol. The results showed that variation of hydrolysis treatment, fermentation time, and fermipan levels has real effect on the fermentation process. On average the highest ethanol content obtained from the treatment with multienzyme addition, with the addition of 2% fermipan levels and on the 2nd day of fermentation that is equal to 3.76%.