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This study was carried out to investigate the oil potential of peanuts for domestic and commercial uses. Peanut oil yield and the physico-chemical properties of extracted oil were investigated on different temperatures (50, 55, 60 and 65 °C) and sun drying. Results showed maximum oil yield of 47.2 % at sun drying and lowest values of 37.0 % at 65 °C. Highest and lowest acid values are 25.52 and 5.89 mg/KOH/g at 60 °C and 50 °C respectively. The Free Fatty Acid (FFA) content were obtained 12.76 and 2.94 mg/g at 60 °C and 50 °C, while saponification values were 61.71 and 32.25 mg/KOH/g at 60 °C and 50 °C respectively. The highest Peroxide value of 92 mg/KOH/g was recorded at 55 °C which dropped to 43.4 mg/KOH/g at 65 °C. Refractive index (RI) and density were not changed significantly (p≤0.05) on all temperatures, while pH was somewhat higher on 50 °C. The moisture content was found lowest up to 3.0 % on 65 °C while highest was 5 % on 50 °C.
Rahib Hussain, Ayed Hussain, Asadullah, Shehla Sattar, Madeeha Zeb, Amjad Hussain, Muhammad Nafees. (2015) Physico-chemical Properties and Assessment of Edible Oil Potential of Peanuts Grown in Kurram Agency, Parachinar, Pakistan Journal of Analytical & Environmental Chemistry, Volume 16, Issue 1.
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