Fat, Fatty Acids and Tocopherol Content of Several Walnut Genotypes

Abstract

There are seed propagated walnut (Juglans regia L.) populations with the vast genetic variation in different part of Turkey. There are also lots of monoecious and dichogamous genotypes in Turkey due to continuing sexual propagation. In this study, fruits of 19 selected walnut genotypes grown in Kahramanmaraş region were characterized based on their fat, fatty acid and tocopherol contents. The fatty acids content of genotypes were analyzed using Gas Chromatography. Tocopherol analyses such as alpha (α)-Tocopherol, gamma (γ) and beta (β) + delta (δ) were performed by HPLC technique. According to the total fat and fatty acid results, there were differences among genotypes on most of the fatty acids. Total fat ranged from 51.2 to 82.1%, stearic acid from 2.57 to 3.37%, myristic acid from 0.00 to 0.05%, palmitic acid from 6.42 to 7.92%, arachidic acid from 0.00 to 0.16%, linoleic acid from 53.23 to 63.62%, linolenic acid from 10.75 to 15.24%, oleic acid from 14.73 to 24.17% and palmitoleic acid from 0.00 to 0.16%, respectively. The same genotypes were evaluated based on their tocopherol content and (α)-Tocopherol, gamma (γ) and beta (β) + delta (δ) tocopherol were found between 23.47 and 38.04 μg/g, 161.09 and 292.56 μg/g and 16.93 and 32.34 μg/g, respectively.

Phenolic and Fatty Acid Profile, and Protein Content of Different Walnut Cultivars and Genotypes (Juglans regia L.) Grown in the USA

“…In connection with oil, fat-soluble vitamins A and E have been cited in walnut kernels as well (Amaral et al, 2005;Bujdosó et al, 2010). Other nutritive chemical components found in walnut kernels are proteins, carbohydrates, fibers, phenolics, flavonoids, and sterols (Beyhan et al, 2017;Colaric et al, 2005;Gharibzahedi et al, 2014;Ziarati and Aryapak, 2014). Walnut kernels are also rich in minerals such as iron, copper, zinc, and phosphorous (Cosmulescu et al, 2009;Ziarati and Aryapak, 2014).…”

Changes of some horticultural characteristics in jujube (Ziziphusjujube Mill.) fruit at different ripening stages

“…Fatty acids are commonly classified as saturated, monounsaturated, and polyunsaturated fatty acids. Unsaturated fatty acids are precious for nutrition (Nettleton, 1995;Beyhan et al, 2017). Unsaturated fatty acids have an important role in protecting the body against heart disease, some cancer types, and some other diseases (San and Yildirim, 2010;Simopoulos, 2008;Lunn and Theaobaald, 2006).…”

The Effects of Plant Growth Regulators On The Oil Content And Fatty Acid Composition of Ricinus Communis L.: An In Vitro Study

“…Although in the literature there are many studies on the determination of oil content and fatty acid composition of various plants grown in eld conditions [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39]. However studies on the determination of fatty acid and oil content of explants obtained by plant cell culture applications are very rare [40][41][42][43][44].…”