Ribes taxa: A promising source of γ-linolenic acid-rich functional oils. (15th December 2019)

• Record Type: Journal Article
• Authors: Lyashenko, Svetlana; González-Fernández, María José; Gómez-Mercado, Francisco; Yunusova, Svetlana; Denisenko, Oleg; Guil-Guerrero, José Luis
• Is Part Of: Food chemistry. Volume 301(2019)
• Publication Date: 2019-12-15
• Subjects: Ribes -- Ribes nigrum -- Grossulariaceae -- Blackcurrant -- Polyunsaturated fatty acid -- γ-Linolenic acid -- Stearidonic acid -- Principal Component Analysis; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2019.125309
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: 50 Ribes taxa were surveyed for γ-linolenic- and stearidonic acid-rich seed oils. Blackcurrant cultivars from Siberia contained high levels of γ-linolenic acid. γ-Linolenic acid reached 15–20% of total fatty acids in several Ribes cultivars. Fatty acid profiles allow grouping Ribes species in sections as botanical criteria do. Multivariate analyses detected metabolic reaction rates among unsaturated fatty acids. Abstract: Fifty Ribes species and R. nigrum -based cultivars from eight Ribes sections were surveyed for γ-linolenic acid (GLA, 18:3, n-6)- and stearidonic acid (SDA, 18:4, n-3)-rich oils. R. pallidiflorum, R. glabellum and R. pubescens seed oils contain noticeable GLA amounts: 13.3, 11.8, and 11.9% of total fatty acids (FA), respectively. However, the highest GLA contents were found in the seed oils of several blackcurrant cultivars, highlining Ribes 'Myuryucheene' with 20.2% GLA of total FA. Principal Component Analysis showed that similarities in FA profiles allow grouping species as botanical criteria for Ribes sections do. The main GLA-taxa detected in this study correspond to blackcurrant cultivars, all of them native to Siberia. Considering that such cultivars are notable fruit-producers, its cultivation in Siberia besides producing fruits in very difficult agronomic areas, could produce a valuable by-product, i.e. the seeds, which will add economic value to agricultural systems if devoted to GLA-rich oils extraction.