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FATTY ACIDS COMPOSITION AND SEED OILS QUALITY OF LAGENARIA SICERARIA CULTIVARS GROWN IN NORTHERN NIGERIA. Emmanuel E Essien, Idongesit I Udo, Sampson D Umoh

FATTY ACIDS COMPOSITION AND SEED OILS QUALITY OF LAGENARIA SICERARIA CULTIVARS GROWN IN NORTHERN NIGERIA.

Emmanuel E Essien, Idongesit I Udo, Sampson D Umoh

International Journal of Natural Product Science 2013; 3(6): 1-8

Abstract

Four gourd cultivars (Lagenaria siceraria) were studied for their physicochemical characteristics and fatty acids composition. The yield, refractive index (nD 25°C), specific gravity (25°C), free fatty acids, unsaponifiable matter, acid, iodine, saponification and peroxide values of the oils were obtained in the range 23.0-29.5%, 1.42-1.43, 0.93-0.95g/cm3, 1.8-2.1%, 1.3-1.7%, 2.1-2.4 mgKOH/g, 119.0-128.4 mgI2/g, 221.6-244.2 mgKOH/g, and 1.9-2.5 meq.O2/Kg respectively. Total unsaturated fatty acids content ranged from 70.036 to 71.991%. The predominant fatty acids were linoleic (55.205-60.301%), oleic (11.154-14.149%), palmitic (14.610-17.055%), and stearic acid (11.389-13.024%). Low linolenic acid levels were observed (<1%). The study revealed that L. siceraria seeds oils possess relatively high oxidative stability and predominant unsaturation that would be suitable for food and industrial applications.

Keywords: Cucurbitaceae, fatty acids, Lagenaria siceraria, oil quality, seeds oil
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