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Updated: May 11, 2026

Ultrasonic-Assisted Preparation of Biodiesel Products from Vegetable Oils
Published on: April 19, 2024
Biodiesel production via the transesterification of soybean oil using waste starfish (Asterina pectinifera)
Yong Beom Jo1, Sung Hoon Park, Jong-Ki Jeon
1Graduate School of Energy and Environmental System Engineering, University of Seoul, Seoul 130-743, Republic of Korea.
Abstract:
Calcined waste starfish was used as a base catalyst for the production of biodiesel from soybean oil for the first time. A batch reactor was used for the transesterification reaction. The thermal characteristics and crystal structures of the waste starfish were investigated by thermo-gravimetric analysis and X-ray diffraction. The biodiesel yield was determined by measuring the content of fatty acid methyl esters (FAME). The calcination temperature appeared to be a very important parameter affecting the catalytic activity. The starfish-derived catalyst calcined at 750 °C or higher exhibited high activity for the transesterification reaction. The FAME content increased with increasing catalyst dose and methanol-over-oil ratio.
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