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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Al-Ihtiram: Multidisciplinary Journal of Counseling and Social Research
Harfiah Faradila
Unknown Affiliation
Religion Humanities Astronomy Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice

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Pemanfaatan Ekstrak Kulit Pisang Sebagai Green Inhibitor Dengan Metode Maserasi Dalam Upaya Mengendalikan Korosi Pada Baja ASTM 36 Harfiah Faradila; Komalasari Komalasari; Drastinawati Drastinawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Corrosion is the interaction of materials with the environment that result in damage to material and the environment. a method of restricting the occurrence of corrosion processes with inhibitors. An organic inhibitor that is an inhibitor that is made from natural materials available in nature. Extract of banana peels contains tannin compounds that can prevent corrosion. The purpose of the research was to determine yield and extract of banana peels maceration method, determine the rate of steel corrosion using inhibitor corrosion, and determine the influence of the concentration of inhibitor, corrosion, media and contact time variation of the rate of corrosion. This research began with extract of banana peels is done by the method of contact during the maceration time with the 7hari. Then proceed with the contact of steel corrosion on media that is HCl and NaOH concentration extract with 0 gr/L and 1 g/L on the contact time of 12, 24, 48, 72 hours. The results of this study showed the greater the concentration of the inhibitor of the smaller banana peels extracts the rate of corrosion.Keywords: banana peels, carbon steel ASTM 36, corrosion rate, green inhibitor.
PENGARUH KONSENTRASI KATALIS NATRIUM HIDROKSIDA (NaOH) TERHADAP PRODUKSI DAN KARAKTERISTIK CRUDE METHYL ESTER DARI LEMAK LIMBAH FILLET IKAN PATIN (Pangasius hypophthalmus) Ivan Fadhillah; Fatmayati Fatmayati; Anna Dhora; Yogy Rasihen; Harfiah Faradila
Al-Ihtiram: Multidisciplinary Journal of Counseling and Social Research Vol. 5 No. 1 (2026)
Publisher : Perkumpulan Ahli Bimbingan dan Konseling Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59027/6qc4ff78

Abstract

Fat waste from pangasius (Pangasius hypophthalmus) filleting is a by-product of the fishery industry with a relatively high triglyceride content, making it a potential feedstock for crude methyl ester (CME) production. One of the factors affecting the success of transesterification is the concentration of the sodium hydroxide (NaOH) catalyst. This study aimed to analyse the effect of varying NaOH concentrations on the yield and characteristics of CME produced from pangasius fillet waste fat. The research was carried out using the transesterification method with NaOH catalyst concentrations of 1%, 1.5%, 2%, 2.5%, and 3% (w/w). The observed parameters were yield, free fatty acid (FFA) content, impurities, and moisture. The results showed that increasing the NaOH concentration up to 2% raised the CME yield from 21% to 35% and lowered the FFA content from 1.45% to 0.59%, impurities from 1.81% to 0.68%, and moisture from 3.10% to 1.95%. However, increasing the NaOH concentration to 2.5% and 3% reduced the yield to 26% and 18%, accompanied by higher FFA, impurities, and moisture caused by saponification, which hindered product separation. Based on these results, a NaOH concentration of 2% is the optimum condition for producing crude methyl ester with the highest yield and the best quality characteristics from pangasius fillet waste fat.
Co-Authors Anna Dhora Drastinawati Drastinawati Ivan Fadhillah Komalasari Komalasari Yogy Rasihen