title: Enhancement of nutritionally significant constituents of black currant seeds by chemical elicitor application.
abstract: Black currant seeds are obtained as a residue during juice production. Black currant seed oil contains high amounts of nutritionally desirable constituents such as γ-linolenic acid (GLA), α-linolenic acid (ALA) and stearidonic acid (SA), as well as certain phenolic acids, which act as natural antioxidants. Fatty acids and phenolic acids of seeds from black currant cultivars after elicitation with methyl jasmonate (MJ) were examined. GLA contents around 25% with respect to total fatty acid content were measured in seeds after pre-harvest treatment of black currants with 0.02mM MJ in 0.05% Tween-20. High GLA samples also exhibited high SA content (higher than 10% with respect to total fatty acid content); however, ALA dropped (from 16% to 10%). High GLA content seeds also showed increased contents of gallic, caffeic, p-coumaric and ferulic acids. In particular, seeds from 0.02mM MJ treated Ben Hope black currants exerted contents of gallic, caffeic, p-coumaric and ferulic acids of 201.4, 125.9, 201.3 and 112.5μgg(-1)vs 124.3, 58.6, 165.4 and 95.8μgg(-1) measured in seeds from untreated Ben Hope black currants. Comparable results were obtained for Ben Alder and Ben Gairn berries. Chemical elicitation with 0.02 MJ is proposed as an industrial practice in such a way that, after consideration of quality issues, it would be obtained high added value black currant seeds.
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición, Consejo Superior de Investigaciones Científicas (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain.
authors.forename: Gema
authors.initials: G
authors.lastname: Flores
authors.affiliation: Instituto de Ciencia y Tecnología de Alimentos y Nutrición, Consejo Superior de Investigaciones Científicas (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain. Electronic address: ifir312@ifi.csic.es.
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Ruiz del Castillo
mesh_terms: D000085:Acetates / Q000494:pharmacology*; D000975:Antioxidants / Q000032:analysis / Q000378:metabolism; D003373:Coumaric Acids / Q000032:analysis / Q000378:metabolism; D003517:Cyclopentanes / Q000494:pharmacology*; D015525:Fatty Acids, Omega-3 / Q000032:analysis / Q000378:metabolism; D005638:Fruit / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism; D062385:Hydroxybenzoates / Q000032:analysis / Q000378:metabolism; D009753:Nutritive Value; D054883:Oxylipins / Q000494:pharmacology*; D031965:Ribes / Q000737:chemistry* / Q000187:drug effects* / Q000378:metabolism; D012639:Seeds / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism; D017962:alpha-Linolenic Acid / Q000032:analysis / Q000378:metabolism
chemical_list: D000085:Acetates; D000975:Antioxidants; D003373:Coumaric Acids; D003517:Cyclopentanes; D015525:Fatty Acids, Omega-3; D062385:Hydroxybenzoates; D054883:Oxylipins; D017962:alpha-Linolenic Acid; C072239:methyl jasmonate; C004999:ferulic acid; C017616:phenolic acid; C062895:stearidonic acid
keywords: Black currant; By-products; Fatty acids; Methyl jasmonate; Phenolic acids; Seeds