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All Journal Journal of Clean Technology Journal of Community Empowerment
Firmansyah, Fariq Hammam
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Education Engineering

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Utilization of Rice Straw Waste as a Source of Bioenergy: A Review Prawira, Aditya Hadi; Anugrah, Rizzky; Bahri, Saepul; Firmansyah, Fariq Hammam; Roland, Hizkia Edd
Journal of Clean Technology Vol. 1 No. 1 (2024): February 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/joct.v1i1.1657

Abstract

The rice straw waste is a byproduct of rice processing and is a plentiful natural resource in Indonesia. It has been utilized as a renewable energy source to decrease reliance on fossil fuels and tackle worldwide energy concerns. Rice straw waste contains various organic compounds, such as 36.6% cellulose, 25.3% hemicellulose, and 14.3% lignin. These compounds can be converted into various types of bioenergy, such as bioethanol, biogas, biomass, and bioelectricity through fermentation and pyrolysis processes. Rice straw waste has significant potential as a raw material in bioethanol production, biogas and bio-oil. rice straw waste also has the potential to produce bio-oil through the pyrolysis process. Tiny organisms, like bacteria and fungi, have a crucial part in the creation of bioethanol, biogas, and bio-oil. These microscopic organisms will be used in the process of fermentation, decomposition, or other biochemical reactions to convert rice straw waste into the desired renewable energy source. In the production of bioethanol, the use of enzymes such as amylase or cellulase may be required to break down the raw materials into simpler components that can be converted through the fermentation process into bioethanol. The process of producing biogas involves utilizing an anaerobic digester, which is a controlled environment devoid of oxygen. In this environment, microorganisms decompose the organic material found in rice straw waste and generate biogas. The methods used in the production of bioenergy (bioethanol, biogas and bio-oil) from straw waste may vary depending on the context and available technology.
Diversification of Fresh Milk into Yogurt to Increase Economic Value of Dairy Groups Astuti, Widi; Widyastuti, Catur Rini; Putra, Muhammad Rizky Fahrizal; Nurrahman, Ahmad Rickyansyah; Firmansyah, Fariq Hammam; Ubay, Isnina Noor; Harianingsih, Harianingsih
Journal of Community Empowerment Vol. 5 No. 2 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i2.35969

Abstract

Low selling prices of fresh milk and the rejection of substandard milk by the Milk Processing Industry have reduced the income of dairy groups in Gunungpati, Semarang, and caused environmental problems due to milk disposal. This community service program aimed to increase the economic value of fresh milk through diversification into yogurt products. The program involved entrepreneurship motivation, assembly of a milk pasteurization unit, provision of a yogurt incubator, and hands-on yogurt production training for 20 members of a dairy processing group. The activity emphasized appropriate technology application and skill development to enable independent household-scale production. Results showed improved technical competence in yogurt processing, increased entrepreneurial motivation, and initial product trials for market testing. Fresh milk diversification into yogurt provides an alternative strategy to enhance income, reduce environmental waste, and strengthen community-based dairy business sustainability.
Co-Authors Anugrah, Rizzky Catur Rini Widyastuti, Catur Rini Harianingsih, Harianingsih Nurrahman, Ahmad Rickyansyah Prawira, Aditya Hadi Putra, Muhammad Rizky Fahrizal Roland, Hizkia Edd Saepul Bahri Ubay, Isnina Noor Widi Astuti