Physico chemical properties of oil obtained from groundnut seeds (Arachis hypogaea L.) using different extraction methods

Adesipe-Olugbemi, Iyanuoluwa Temitayo and Makanjuola, Olakunle Moses (2019) Physico chemical properties of oil obtained from groundnut seeds (Arachis hypogaea L.) using different extraction methods. International Journal of Food Science and Nutrition, 4 (4). pp. 160-164. ISSN 2455-4898

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Abstract

The physicochemical properties of groundnut oils extracted from groundnut seeds (Arachis hypogaea L.) by traditional, mechanical and solvent methods were evaluated using standard analytical procedures. The results showed that oil samples are within the range of 0.08-0.060% moisture & matter volatile, 0.13-0.44%m/m insoluble impurities, 0.942-0.951 relative humidity, 1.20-4.14mg/KOH/g acid value, 134.60-168.30mg/KOH/g saponification value, 38.46-47.37g/100g iodine value, 5.20-7.03mEq/kg peroxide value, 2.08-3.60mg/KOH/g free fatty acid, 6.80-8.40g/kg unsaponifiable matter with refractive index of 1.46 for all the oil samples, suggesting significant differences (p<0.05) among samples. However, oil extracted by traditional method was the best in terms of storability, resistance to hydrolysis, oxidative deterioration and decomposition likely to be caused by enzymes.

Item Type:	Article
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr Taiwo Egbeyemi
Date Deposited:	11 May 2020 19:11
Last Modified:	11 May 2020 19:11
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/71

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