Proceedings of the First Mandalika International Multi-Conference on Science and Engineering 2022, MIMSE 2022 (Mechanical and Electrical) (MIMSE-M-E-I-2022)

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Bioethanol Production from Molasses by Varying Sugar and Yeast Concentration

Authors
Tri Rachmanto1, *, Miftahurrahman1, Achmad Zainuri1, I Made Suartika1, Fikrihadi Kurnia1, Maharsa Pradityatama1
1Department of Mechanical Engineering, Faculty of Engineering, University of Mataram, Mataram, 83115, Indonesia
*Corresponding author. Email: t.rachmanto@unram.ac.id
Corresponding Author
Tri Rachmanto
Available Online 26 December 2022.
DOI
10.2991/978-94-6463-078-7_6How to use a DOI?
Keywords
bioethanol; molasses; brix; yeast concentration; alcohol volume; alcohol content
Abstract

When 2020 began the outbreak of new pneumonia, namely the coronavirus disease 2019 (COVID-19), alcohol suddenly became less available because it was the most sought-after item. This is because 70% alcohol can be used as an antiseptic and disinfectant solution to overcome coronavirus transmission. The manufacture of 70% alcohol can use alternative materials from sugar industry waste, namely molasses. This study aimed to determine the effect of Brix and yeast concentration variations on the level and volume of alcohol made from molasses and how much Brix and yeast concentration can obtain optimal bioethanol yield. The research method used is the experimental method. The variations of Brix used were 12%, 15%, and 18%, while the yeast concentrations used were 0.5%, 1%, and 1.5% of the total sample weight. Bioethanol production is carried out by fermentation process for 48 h against 30 kg of molasses solution, but firstly, the propagation process is carried out for 2 h. Then it is distilled to get bioethanol from the fermentation of molasses. The results of this study indicate that the two factors affect the volume and level of bioethanol produced. Still, the variation factor Brix is the dominant factor in determining the volume and alcohol content. The optimal treatment to deliver the highest volume and content of bioethanol is Brix 15% and yeast concentration of 1%, with an average volume of bioethanol produced as much as 1882 ml and the resulting alcohol content of 84%.

Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the First Mandalika International Multi-Conference on Science and Engineering 2022, MIMSE 2022 (Mechanical and Electrical) (MIMSE-M-E-I-2022)
Series
Advances in Engineering Research
Publication Date
26 December 2022
ISBN
978-94-6463-078-7
ISSN
2352-5401
DOI
10.2991/978-94-6463-078-7_6How to use a DOI?
Copyright
© 2023 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Tri Rachmanto
AU  - Miftahurrahman
AU  - Achmad Zainuri
AU  - I Made Suartika
AU  - Fikrihadi Kurnia
AU  - Maharsa Pradityatama
PY  - 2022
DA  - 2022/12/26
TI  - Bioethanol Production from Molasses by Varying Sugar and Yeast Concentration
BT  - Proceedings of the First Mandalika International Multi-Conference on Science and Engineering 2022, MIMSE 2022 (Mechanical and Electrical) (MIMSE-M-E-I-2022)
PB  - Atlantis Press
SP  - 37
EP  - 45
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-078-7_6
DO  - 10.2991/978-94-6463-078-7_6
ID  - Rachmanto2022
ER  -