Variation in Fatty Acid Compositions, Oil Content and Oil Yield in a Germplasm Collection of Sesame (Sesamum indicum L.)

Abstract

The variation in oil content, oil yield and fatty acid compositions of 103 sesame landraces was investigated. The landraces varied widely in their oil quantity and quality. The oil content varied between 41.3 and 62.7%, the average being 53.3%. The percentage content of linoleic, oleic, palmitic and stearic acids in the seed oil ranged between 40.7-49.3, 29.3-41.4, 8.0-10.3 and 2.1-4.8%, respectively. Linolenic and arachidic acids were the minor constituents of the sesame oil. Linoleic and oleic acids were the major fatty acids of sesame with average values of 45.7 and 37.2%, respectively. The total means of oleic and linoleic acids as unsaturated fatty acids of sesame were about 83% which increases the suitability of the sesame oil for human consumption. The superiority of the collection was observed in oil content. The oil content of a few accessions was above 60%, proving claims that some varieties of sesame can reach up to 63% in oil content. The accessions with the highest oil content were relatively richer in the linoleic acid content while there were some landraces in which linoleic and oleic acid contents were in a proportion of almost 1:1. The results obtained in this study provide useful background information for developing new cultivars with a high oil content and different fatty acid compositions. Several accessions could be used as parental lines in breeding programmes aiming to increase sesame oil quantity and quality.

A comparative study of fatty acid extraction methods of sesame (Sesamum indicum L.) varieties grown under mediterranean environment

“…Oil contents of sesame varieties ranged from 47.9-54.7% in Soxhlet method and from 31.1-42.8% in cold press method. In this manner, results of this study are similar to the findings of Uzun et al (2008) who reported oil content of 103 Turkish sesame landraces ranged from 41.2-62.7%. Similar results were reported by Asghar & Majeed (2013) and Nzikou et al (2009).…”

“…Oleic and linoleicacids are the major fatty acids of sesame oil (Arslan et al, 2007;Uzun et al, 2008), and they are found to be present in large proportion in the oils of all genotypes. Oleic acid content of sesame oil ranged from 37.15 to 41.67%.…”

Quantitative trait loci (QTLs) analysis of palm oil fatty acid composition in an interspecific pseudo-backcross from Elaeis oleifera (H.B.K.) Cortés and oil palm (Elaeis guineensis Jacq.)

“…In other crops such as Sesamun indicum L (Were et al 2006), Brassica napus L (Zhao et al 2008), or Zea mays (Yang et al 2010), this negative correlation is frequently justified as pleiotropic effects of single genes or closely linked genes controlling different traits (Yang et al 2010). The negative correlation between C18:2 and C18:1 had been reported in Sesamum indicum L (Uzun et al 2008), maize (Yang et al 2010), and Arachis hypogaea L. (Sarvamangala et al 2011). However, estimates of genetic (additive) and pure environmental correlations cannot be precisely estimated on our single cross where all offsprings have the same kinship degree.…”

Calcium application enhances growth and alleviates the damaging effects induced by Cd stress in sesame (Sesamum indicumL.)

“…Thus, the objectives of our study were to determine the interactive efficiency of Ca 2+ application both in the metabolism of lipids in sesame (Sesamum indicum L.) and in plant tolerance to Cd stress. Sesame (S. indicum L.), an herbaceous annual plant, was chosen for this study because of its high content of oil and polyunsaturated fatty acids (up to 90%), which include linoleic, oleic, stearic and palmitic acids (Uzun et al 2008). …”