Subscribe Now Subscribe Today
Science Alert
Curve Top
Pakistan Journal of Nutrition
  Year: 2009 | Volume: 8 | Issue: 3 | Page No.: 269-272
DOI: 10.3923/pjn.2009.269.272
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Chemical Analyses of Groundnut (Arachis hypogaea) Oil

G.N. Anyasor, K.O. Ogunwenmo, O.A. Oyelana, D. Ajayi and J. Dangana

Peanut (Arachis hypogaea L.) oil from seeds of six varieties; boro red, boro light, mokwa, ela, campala and guta as well as oil from three geographical zones in Nigeria; northern, eastern and western were investigated. Gas chromatography analysis showed high concentrations of oleic and linoleic acids in the oil samples. Capric (0.0%) and Lauric (8.1%) acids were absent and highest, respectively in the mokwa variety and hence diagnostic. More so, the comparative chemical analysis of peanut oil from the three zones and some selected refined vegetable oil; sunola, grand, olive and corn oil, indicated that western and grand oil had high iodine value 1.74±0.1 and 2.63±0.1, respectively, compared to others. The northern oil had high acid and fat value than the others (4.49 and 133%, respectively). Furthermore, the saponification value of the local vegetable oil was found to be significantly higher than the refined vegetable oil (P < 0.05), the eastern oil having the highest (140.25mgKOH/g). However, the peroxide values for both the local and refined oil were less than the standard peroxide value (10mEqKg-1) for vegetable oil deterioration. Minerals were present and no rancidity was observed in all the samples. In conclusion, the groundnut oil from Nigeria may have a higher shelf life, and serve as a useful substitute in nutrition and industrial applications.
PDF Fulltext XML References Citation Report Citation
  •    Effect of Heating on the Chemical Composition and Physico - Chemical Properties of Arachis hypogea (Groundnut) Seed Flour and Oil
  •    Physicochemical Studies on Oils from Five Selected Nigerian Plant Seeds
  •    Proximate Composition and Selected Physicochemical Properties of the Seeds of African Oil Bean (Pentaclethra marcrophylla)
How to cite this article:

G.N. Anyasor, K.O. Ogunwenmo, O.A. Oyelana, D. Ajayi and J. Dangana, 2009. Chemical Analyses of Groundnut (Arachis hypogaea) Oil. Pakistan Journal of Nutrition, 8: 269-272.

DOI: 10.3923/pjn.2009.269.272






Curve Bottom