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All Journal Nusantara Science and Technology Proceedings
Ika Nawang Puspitawati
Chemical Engineering Department, Faculty of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Journal : Nusantara Science and Technology Proceedings

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Bioethanol Generation Through the Fermentation Process of Pineapple and Black Grape Utilizing Saccharomyces cerevisiae and Saccharomyces bayanus Ika Nawang Puspitawati; Sintha Soraya Santi; Kindriari Nurma Wahyusi; Sani
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3609

Abstract

Bioethanol is an alcohol molecule that is derived through the process of fermentation using microorganisms. Fermentation is a biological process in which microbes metabolize fermentable sugars as a source of nourishment, resulting in the production of ethyl alcohol and various other byproducts. These microbes commonly metabolize 6-carbon carbohydrates, with glucose being one of the most prevalent examples. Hence, biomass materials rich in glucose or glucose precursors are the most readily convertible to bioethanol. The examination of bioethanols employing Saccharomyces bayanus demonstrated notable disparities in the obtained alcohol concentration. The utilization of Saccharomyces bayanus yeast, in the absence of sugar supplementation, for the conversion of grape into bioethanol, yielded a modest alcohol concentration of merely 14%. In the context of bioethanol production, pineapple was utilized as a substrate, wherein 4 grams of Saccharomyces bayanus yeast and an additional 70 grams of sugar were introduced as a nutritional supply to support yeast growth and metabolism. The present fermentation procedure resulted in an alcohol concentration of around 21%.
The Efficiency of Producing Biodiesel from Used Cooking Oil by Precipitating Blood Cockles Shell Waste with a CaO Catalyst Alif Julian Putra Rahmandika; Achmad Rahditya Viman Anggoro; M. Fikri; Rahmita Padmasari; Yusratus Sakinah; Ika Nawang Puspitawati
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3611

Abstract

Bio-based waste materials perform an essential duty as valuable sources of components that can be effectively utilized as active phases in the synthesis of CaO catalysts for the generation of biodiesel. The abundance of shell Blood cockles is considerable. Additionally, Indonesia has a stockpile of used cooking oil. The utilized cooking oil has a notable concentration of fatty acids, presenting the potential for conversion into biodiesel. The technology of converting leftover cooking oil into biodiesel through transesterification has undergone significant advancements. An accelerator is necessary to boost the biodiesel yield to attain a sufficiently high yield. The CaO catalyst was selected due to its ability to expedite and boost biodiesel output. This study evaluated the blood clam shell's potential as a transesterification catalyst for used cooking oil. This study used temperature and concentration change variables for transesterification, with a settle variable of 60 minutes. The concentrations of the variables are 3 N, 4 N, 5 N, 6 N, and 7 N, whereas the temperatures are 45 ?C, 50 ?C, 55 ?C, 60 ?C, and 65 ?C. With varying transesterification times of 60 minutes, transesterification temperatures of 60°C and 65°C, and catalyst concentrations of 6N and 7N, the research findings indicate that utilizing this catalyst can boost biodiesel yield with conversion yields of 85%, 88%, and 95%. This demonstrates that temperature can also promote improving biodiesel production and that using catalysts can boost the conversion of biodiesel to over 90% or more.
Co-Authors Achmad Rahditya Viman Anggoro Alif Julian Putra Rahmandika Kindriari Nurma Wahyusi M. Fikri Rahmita Padmasari Sani Sintha Soraya Santi Yusratus Sakinah