Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Fullerene Journal of Chemistry Jurnal FisTa : Fisika dan Terapannya
Maanari, Chaleb
Unknown Affiliation
Astronomy Chemistry Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengaruh Proses Pembuatan Terhadap Karakteristik Minyak Kelapa Lestari, Endang Putri; Gugule, Sanusi; Fatimah, Feti; Maanari, Chaleb
Jurnal FisTa : Fisika dan Terapannya Vol 6 No 2 (2025): OKTOBER
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/fista.v6i2.493

Abstract

Coconut oil is one of the vegetable oils widely used in the food, cosmetic, and pharmaceutical industries due to its high content of saturated fatty acids, particularly lauric acid. This study was conducted on the effect of coconut oil processing methods on the characteristics of the resulting coconut oil. Three processing methods were applied: non-heating, fermentation, and direct heating. A transesterification step was carried out to determine the fatty acid profile and its derivatives. The characterization of coconut oil compounds included measurements of density, acid value, peroxide value, and ester value, as well as analysis of fatty acid compounds using Gas Chromatography-Mass Spectrometry (GC-MS). The results showed that the best method for producing coconut oil was the non-heating process, with the following physicochemical properties: yield of 13.5%, acid value of 0.20 mg KOH/g, peroxide value of 2.00 meq/kg, and ester value of 223.28 mg KOH/g. The main components identified from the transesterified coconut oil were dodecanoic acid methyl ester (methyl laurate), methyl tetradecanoate, and hexadecanoic acid methyl ester.
Pengaruh Katalis Terhadap Rendemen Reaksi Transesterifikasi Br Tarigan, Romi Yana Widiawati; Gugule, Sanusi; Tuerah, Jeanne Maria; Maanari, Chaleb
Jurnal Kimia Fullerene Vol 8 No 2 (2023): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v8i2.494

Abstract

Research has been carried out on the effect of a catalyst on the yield of transesterification reactions. Pure coconut oil is made mechanically without heating using fresh coconut meat or what is called non-copra, followed by a base-catalyzed transesterification reaction using KOH and NaOH. The purpose of this study was to determine the effect of the catalyst on the yield of the transesterification reaction. The results of the reaction were analyzed by determining the physico-chemical properties and analysis of Gas Chromatography-Mass Spectrometry (GC-SM). The results showed that the average reaction yield with KOH catalyst was 74.3% and 70% NaOH catalyst. The most dominant GC-SM identification results were ethyl caproate 4.12%, ethyl capricate 4.99%, ethyl laurate 54.97%, ethyl myristate 18.49%, ethyl palmitate 8.13%, 9.12 octadecatrin-1-ol 5.24% and ethyl strearate 2.28%.
Co-Authors Br Tarigan, Romi Yana Widiawati Feti Fatimah Jeanne M. Tuerah Lestari, Endang Putri Sanusi Gugule