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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

Making Bioethanol from Cassava as an Environmentally Friendly Fuel Mixing Material Ridwan; Hermawati; Hamsina; Paredatu, Trinugie Aprin; Tang, M.; Akrim, Djusdil; Hasani, Ruslan
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4716

Abstract

Bioethanol derived from cassava has the potential as an alternative energy material because cassava plants contain starch, sugar or cellulose which can be used in the process of making alternative and environmentally friendly fuels. This study aims to make bioethanol from cassava starch. This research method starts from material preparation to the process stage consisting of the fermentation process, distillation process, and the final stage, namely testing ethanol content and adding fuel. 5 kg of cassava is used to produce 98 ml of bioethanol distillation with 16% rendition. The combustion test was carried out to obtain a comparison of the calorific value between the fuel mixture - Bioethanol and fuel -Alcohol, Mixing partalalite - Bioethanol 1: 19 (95% partalaite: 5% Bioethanol) and fuel - Alcohol 1: 19 (95% partalite: 5 % alcohol). The results of the research obtained the calorific value of combustion of the partalalite - alcohol mixture: 11,649.48 kcal/kg, while for the partalalite - bioethanol mixture: 11,486.15 kcal/kg. So that the higher the concentration of ethanol mixed in partalite, the higher the calorific value.
Modification of Cassava Peel Starch, Substituting Chitosan and Seaweed: Production of High Quality Edible Film Hamsina; Doan, Friska; Hermawati; Safira , Ifa; Hasani , Ruslan
Jurnal Penelitian Pendidikan IPA Vol 10 No 2 (2024): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i2.6428

Abstract

Biodegradable packaging materials from biomass have been proven to be effective and efficient in improving the quality of materials food because it has the advantages of long shelf life, biodegradable, safe for health and cheap easy to use. The aim of the research is to determine the best formulation and water vapor rate properties as well as the mechanical properties of edible film based on cassava peel starch with the addition of palm oil and chitosan. The method used to determine the best formulation of edible film by making cassava peel starch, mixing raw materials and printing edibles film. Next, the water vapor rate and mechanical properties tests were carried out which included tensile strength tests, elongation tests and biodegradation tests. Results What was obtained from this research was the optimum concentration, namely 5 gr of cassava starch, 2 ml glycerol, 2 grams chitosan and 1 ml Palm oil with edible film characteristics was obtained respectively for the water vapor transmission rate test of 15.37 gr/hour.m2, tensile strength test of 0.66 MPa, elongation test of 4.05%, thickness test of 0.17 mm, and biodegrability test for 2 Sunday.