Chemical characterization and fatty acid profile of different sesame verities in Pakistan

摘要

Sesame is the most ancient crop cultivated for its oil in the sub-continent. Its seeds contain between 50 and 54% of very good semi-drying oil, mostly with palmitic and stearic acids. The variation in oil content, oil yield, chemical composition and fatty acid composition of 4 different (till-90. P-37, till-93 and s-17) sesame verities were investigated. The oil content varied between 49.5 and 53.9%, the average being 52.1%. The percentage content of caprilic acid, linoleic acid, palmitic and stearic acids in the seed oil ranged between 16.9-21.8%, 4.7-12.5%, 16.0-19.3% and 13.9-21.5%, respectively. Oleic linoleic acids and palmitoleic acids were the minor fatty acids of sesame as sesame were about 24.3% which increases the suitability of the sesame oil for human consumption. The oil extracts exhibited good physicochemical properties and could be useful as edible oils and for industrial applications. In conclusion, the fatty acid composition of determinate types was found to be satisfactory. Results obtained showed that till-90. P-37, till-93 and s-17 contained 4.15- 4.25% moisture, 49.5-53.9 % crude oil, 18.96- 22.55% crude proteins, 3.01-5% crude fiber, 3.67- 5.1% ash.