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All Journal Jurnal Bahan Alam Terbarukan JURNAL REKAYASA KIMIA & LINGKUNGAN
Nugrahini, Panca
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Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology

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Synthesis of Biofoam from Cassava Peel Starch, Banana Peel Starch and Chitosan as Additives Darni, Yuli; Mayanti, Eva; Anandati, Ghea Maulidaco; Ginting, Simparmin Br.; Lismeri, Lia; Nugrahini, Panca; Utami, Herti
Jurnal Bahan Alam Terbarukan Vol 12, No 2 (2023): December 2023 [Nationally Accredited Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v12i2.44842

Abstract

Biodegradable Foam (Biofoam) material has been made for application of styrofoam substitute food packaging material from a mixture of starch with chitosan as an additive. The purpose of this study was to determine the effect of molding temperature on biofoam products and to determine the effect of chitosan addition on the physical, mechanical, and biodegrability properties of biofoam made from cassava peel starch (a) and banana peel starch (b) which is close to commercial biofoam standards. The production of biofoam uses variations in molding temperature of 125, 150 and 175 °C and variations in chitosan weight with variations of 0, 1, 2 and 3 grams. The resulting biofoam product was then tested for density, water absorption, compressive strength, biodegradation and functional groups with Fourier Transform Infrared  (FTIR). Based on the results of the study, it is known that biofoam that is close to commercial standards is found in the addition of 3 gr chitosan weight with a molding temperature of 125 °C with a density value of 0.423gr/cm3, water absorption of 42.54% and compressive strength of 0.0045 Mpa. As for biodegradation, biofoam products will decompose 55.17% for 55 days in 0 g chitosan weight with a thermopressing temperature of 175 °C. The spectrum results obtained on biofoam have C-H, C-O, C-N, N-H, C=O and O-H functional groups.
Applied of Synthesis Furfural Based on Cassava Stems (Manihot utilissima) As Fuel Additive to Gasoline Lismeri, Lia; Riyadi, Lutfia Rahma; Darni, Yuli; Nugrahini, Panca; Azhar, Azhar; Lesmana, Donny
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.26495

Abstract

Biofuel is an option to reduce CO2 generated by vehicles. In this study, synthetic crude furfural from cassava stems was blended as fuel additive to gasoline (Pertalite) and then induced by electromagnetic field. Analysis were carried out on engine performance and exhaust emissions produced by Kohler engines. Variations formed by samples crude furfural and commercial furfural (C5H4O2), then time variations of electromagnetic induction for 0 and 30 minutes. The blending composition of gasoline and furfural in a mixture of 1,500 ml fuel is 96% : 4%. The best results from increasing torque, cranking power and saving fuel consumption were obtained from variations in the use of crude furfural additives induced by electromagnetic fields (CFE). Exhaust emissions produced by pure Pertalite are still lower than fuels with furfural additives. The content of water and impurities in crude furfural causes the additive unmixed with Pertalite which is non-polar and hydrophobic.
Co-Authors Anandati, Ghea Maulidaco Azhar Azhar Donny Lesmana Herti Utami Lismeri, Lia Mayanti, Eva Riyadi, Lutfia Rahma Simparmin br Ginting Yuli Darni