Determination of fatty acid, tocopherol content and total phenol of nine selected Chinese walnut genotypes


BİLGİN Ö. F., ATTAR Ş. H., PAİZİLA A., Liu F., Gong Y., KAFKAS S., ...More

RIVISTA ITALIANA DELLE SOSTANZE GRASSE, vol.98, no.3, pp.187-195, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 98 Issue: 3
  • Publication Date: 2021
  • Journal Name: RIVISTA ITALIANA DELLE SOSTANZE GRASSE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.187-195
  • Keywords: Total lipid, fatty acids, tocopherol, total phenol, antioxidant activity, JUGLANS-REGIA L., TRIACYLGLYCEROLS
  • Çukurova University Affiliated: Yes

Abstract

In this study, total lipid content, fatty acid composition, tocopherol content, total phenol, and DPPH activity of nine selected walnut genotypes from Liaoning province of China were studied. The total lipid content of the walnut genotypes was changed between 47.5 (3-2-16) and 66.8% (Liaoning 7). Oleic acid was the major monounsaturated fatty acid that is 42.86% in the Liaoning 7 genotype, while linoleic acid was the dominant polyunsaturated fatty acid reached a maximum of 63.47% at Han Feng genotype. The total tocopherol content of walnut genotypes ranged from 166.15 (Lipin 1) to 382.40 mu g/g oil (E1-44). The most abundant tocopherol isomer was gamma-tocopherol and it showed maximum level in the Han Feng genotype (318.42 mu g/g). We found alpha-tocopherol was the minor tocopherol compared to other tocopherol isomers and all walnut genotypes showed antioxidant activity that is varied from 52.22 (3-2-16 selection) to 40.18% (Lipin 1). As a result, this study provided valuable information on the chemical compound of selected Chinese walnut genotypes and insights into selecting