Simultaneous Extraction and In-Situ Transesterification of <i>Chlorella</i> <i>vulgaris</i> Using Microwave-Assisted Method for Biodiesel Production

Adhiputra, Randy and Utami, Maisari and Suyono, Eko Agus and Budiman, Arief and Hariani, Poedji Loekitowati and Pratiwi, Ani Setyo and Wijaya, Karna (2021) Simultaneous Extraction and In-Situ Transesterification of <i>Chlorella</i> <i>vulgaris</i> Using Microwave-Assisted Method for Biodiesel Production. KOREAN JOURNAL OF MATERIALS RESEARCH, 31 (4). pp. 181-187. ISSN 1225-0562

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Abstract

This research aims to study the simultaneous extraction and transesterification of Chlorella vulgaris (C. vulgaris) using microwave irradiation with methanol as solvent and potassium hydroxide (KOH) as catalyst. The microwave-assisted insitu transesterification of C. vulgaris is assessed at various ratios of biomass-to-methanol, reaction times, and catalyst concentrations during the centrifugation and evaporation process. Gas chromatography-mass spectrometry (GC-MS) analysis is performed to confirm fatty acid methyl ester (FAME) composition. Biodiesel preparation is carried out by simultaneous extraction and transesterification of microalgae from C. vulgaris. The product is then characterized using Fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (H-1-NMR); microalgae are observed using scanning electron microscopy (SEM). The highest amount of FAME is obtained at a biomass-to-methanol ratio of 1:12, reaction time of 40 min, and catalyst concentration of 2 wt%. Biodiesel shows conversion to about 77.64% of methyl ester (methyl myristate, methyl palmitoleate, methyl linoleate, methyl oleate, methyl arachidonate, and methyl 5,8,11,14,17-eicosapentanoate).

Item Type: Article
Uncontrolled Keywords: biodiesel; chlorella vulgaris; microwave; methyl ester; in-situ transesterification
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Biology > Undergratuate Program in Biology
Depositing User: Sri JUNANDI
Date Deposited: 14 Oct 2024 06:14
Last Modified: 14 Oct 2024 06:14
URI: https://ir.lib.ugm.ac.id/id/eprint/9369

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