The bioconversion of vegetable waste extract from Osowilangun Central Market Surabaya into bioethanol using Saccharomyces cerevisiae

International Conference Research Collaboration of Environmental Science

生态环境科学

Supriyanto, A.^1 ; Lestari, I.^2 ; Citrasari, N.^2 ; Putri, S.S.^2

Biology Department, Faculty of Science and Technology, Airlangga University, Indonesia^1

Environmental Science and Technology Department, Faculty of Science and Technology, Airlangga University, Indonesia^2

关键词: Bio-ethanol production;    Control variable;    Dependent variables;    Fermentation time;    Optimal combination;    Randomized design;    Reducing sugars;    Vegetable wastes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/245/1/012042/pdf
DOI  :  10.1088/1755-1315/245/1/012042

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This research was conducted to determine the effect of vegetable waste extract concentration, fermentation time, and the effect of its combination on ethanol content using Saccharomyces cerevisiae. This research used a complete randomized design with a factorial test consisting of two factors. The first factor is the vegetable waste extract concentration (100, 75, 50, and 25%). The second factor is the fermentation time (3, 6, 9, and 12 days). There were 16 treatments, each of which was performed 3 times. The dependent variable is ethanol content, while the control variables are pH, temperature, and Saccharomyces cerevisiae concentration of 10%. The measurement of reducing sugar used the luff method and the measurement of ethanol content used the pycnometry method. The data obtained were analyzed using two-way ANOVA, followed by the Duncan test on the difference between the treatments of waste extract concentrations and fermentation times. The results indicate that the concentration of vegetable waste extract, fermentation time, and its combination affect bioethanol production. The highest ethanol content was obtained at 100% vegetable waste extract concentration. The optimal time to produce ethanol is 9 days. The most optimal combination is at 100% concentration and 9 days of fermentation time with 4.40%.