December 2014 Vol. 2 No.12

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Oyedele OA
Oladipo IO

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Original Research Article

Investigation into Edible and Non-edible Oil Potentials of Chestnut Grown in Nigeria

Oyelayo A. Oyedele* and Isaac O. Oladipo

Department of Agricultural and Bio-Environmental Engineering, The Federal Polytechnic, Ado-Ekiti, Ekiti State, Nigeria.

*Corresponding Author's Email: segilayo4real@yahoo.com; Tel.: +2348034917764

Accepted December 10, 2014

Abstract

This paper investigates the oil potential of chestnut samples. Proximate analysis was conducted on the extracted oil to determine its physico–chemical properties. Results showed maximum oil yield of 41.90 % at 55 ^oC and lowest values of 37.00 % at 65 ^oC, highest and lowest Acid content of 25.52 mg/KOH/g at 60 ^oC and lowest value at 5.89 mg/KOH/g at 50 ^oC. The Free Fatty Acid (FFA) content obtained were 12.76 at 60 ^oC and 2.94 at 50 ^oC, while saponification values were 61.71 mg/KOH/g at 60 ^oC and 32.25 at 50 ^oC. The highest Peroxide value of 92 was recorded at 55 ^oC which dropped to 43.40 at 65 ^oC. The highest Refractive Index value of 1.46 was obtained during sun-drying treatment while the lowest value of 1.46 was recorded at 65 ^oC. Chestnut possess a high level of commercial value that could meet domestic and industrial oil demands.

Keywords: Chestnut-oil, Extraction, Oil-yield, Physico–chemical, Refractive Index, Saponification, Sun-Drying