Microwave-assisted solvent extraction of castor oil from castor seeds

Nur Atirah Ibrahim; Muhammad Abbas Ahmad Zaini

doi:10.1016/j.cjche.2018.07.009

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Microwave-assisted solvent extraction of castor oil from castor seeds

Separation Science and Engineering | Updated：2026-01-06

- Microwave-assisted solvent extraction of castor oil from castor seeds
- Chinese Journal of Chemical Engineering Vol. 26, Issue 12, Pages: 2516-2522(2018)
- Affiliations：
  
  1. Centre of Lipids Engineering & Applied Research(CLEAR), Ibnu-Sina Institute for Scientific & Industrial Research, Universiti Teknologi Malaysia, UTM Johor Bahru,Johor,Malaysia,81310
  2. School of Chemical & Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru,Johor,Malaysia,81310
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.07.009
  CLC：
- Published：2018
- Accepted：
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Nur Atirah Ibrahim, Muhammad Abbas Ahmad Zaini. Microwave-assisted solvent extraction of castor oil from castor seeds[J]. Chin.J.Chem.Eng., 2018, 26(12): 2516-2522.
DOI：

Nur Atirah Ibrahim, Muhammad Abbas Ahmad Zaini. Microwave-assisted solvent extraction of castor oil from castor seeds[J]. Chin.J.Chem.Eng., 2018, 26(12): 2516-2522. DOI： 10.1016/j.cjche.2018.07.009.

摘要

Abstract

This study was aimed at evaluating the physicochemical properties and oxidation stability of castor oil using microwave-assisted solvent extraction (MAE). MAE was performed using 5% ethanol in hexane as solvent at different extraction times

power intensities and solvent-to-feed (S/F

ml of solvent to gram of feed) ratios. The process parameters were optimized by statistical approach using historical data design of response surface method (RSM). The oils were characterized for yield

physicochemical properties

dielectric properties and oxidation stability

and comparison was also made with oil extracted using Soxhlet method. Results show that the maximum oil yield of 37% was obtained at 20 min with microwave power intensity of 330 W and S/F ratio of 20. The main fatty acid composition of castor oil is ricinoleic acid. The density

refractive index

dielectric properties and oxidation stability of oils are not affected by the extraction methods and extraction parameters of MAE. However

the MAE-extracted oil is more viscous compared to that by Soxhlet method. With extra caution on oil oxidation

MAE could be a promising solvent extraction method with an 86% less in processing time and a higher yield.

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