International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


Downloads: 112

Research Paper | Chemistry | Nigeria | Volume 4 Issue 1, January 2015


Effect of Heat on the Physicochemical Properties of Groundnut Oil

Angaye [2] | S. S [602] | Maduelosi | N. J. [10] | Amadi [22] | C [11132]


Abstract: Oil was extracted from fresh groundnut seeds (used as control) and groundnut seeds heated at 90 0C and 120 0C, and market roasted groundnut seeds (fried and bottled seeds purchased from a local market) using n-hexane. The various oil samples were analyzed for their relative densities, viscosities, refractive indices, iodine values and peroxide values. Results obtained show that oxidative rancidity of the oil samples increased with increase in temperature the seeds were subjected to. Relative density increased from 0.9115 0.0005 (for oil from fresh groundnuts) to 0.9241 0.0002 (for oil from the market roasted sample). The viscosities of the various samples also showed an increase from 33.02 M2S-1 (for oil from fresh groundnuts) to 61.6 M2S-1 (for oil from the market roasted seeds). A similar trend was observed for other parameters refractive index decreased from 79.9470g/100g to 59.6430g/100g while peroxide values increased from 1.8mEq/kg to 7.6mEq/kg. The oil sample obtained from the market roasted seeds recorded the highest level of oxidative deterioration.


Keywords: Groundnut oil, Oxidation, Heat


Edition: Volume 4 Issue 1, January 2015,


Pages: 1278 - 1280


How to Download this Article?

You Need to Register Your Email Address Before You Can Download the Article PDF


How to Cite this Article?

Angaye, S. S, Maduelosi, N. J., Amadi, C, "Effect of Heat on the Physicochemical Properties of Groundnut Oil", International Journal of Science and Research (IJSR), Volume 4 Issue 1, January 2015, pp. 1278-1280, https://www.ijsr.net/get_abstract.php?paper_id=SUB15309

Similar Articles with Keyword 'Oxidation'

Downloads: 0

Research Paper, Chemistry, India, Volume 11 Issue 4, April 2022

Pages: 1089 - 1093

Bioinspired Non-heme Diiron Catalysts for Olefin Epoxidation with Hydrogen Peroxide in the Presence of Acetic Acid

Uday Sankar Agarwalla

Share this Article

Downloads: 0

Review Papers, Chemistry, India, Volume 11 Issue 11, November 2022

Pages: 598 - 603

A Brief Review on Pervoskite Oxides Synthesis and Applications

Shilpa Sangle

Share this Article
Top