title: Phenolic profiles in leaves of chicory cultivars (Cichorium intybus L.) as influenced by organic and mineral fertilizers.
abstract: Chicory (Cichorium intybus L.) is a typical Mediterranean vegetable, and it shows great morphological diversity, including different leaf colours. Five cultivars commonly produced in Slovenia ('Treviso', 'Verona', 'Anivip', 'Castelfranco', 'Monivip') were grown in pots under controlled conditions in a glasshouse, with organic and/or mineral fertilizers administered to meet nitrogen requirements. HPLC analysis was carried out to study the phenolic compositions of the leaves. A total of 33 phenolic compounds were extracted from these chicory leaves and were quantitatively evaluated in an HPLC-DAD-based metabolomics study. Among the cultivars, the highest TPC was seen for 'Treviso' (300.1 mg/100 g FW), and the lowest, for 'Castelfranco' (124.9 mg/100g FW). Across the different treatments, the highest TPC was in the control samples (254.3 mg/100 g FW), and the lowest for the organic (128.6 mg/100 g FW) and mineral fertilizer (125.5 mg/100 g FW) treatments. The predominant phenolic compounds in all of the samples were hydroxycinnamic acids, including chlorogenic and cichoric acid. Fertilizer administration provides a discriminant classification of the chicory cultivars according to their phenolic compounds.
authors: Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia. Electronic address: lovro.sinkovic@gmail.com.
authors: Lovro
authors: L
authors: Sinkovič
authors: Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors: Lea
authors: L
authors: Demšar
authors: Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors: Dragan
authors: D
authors: Žnidarčič
authors: Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors: Rajko
authors: R
authors: Vidrih
authors: Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
authors: Janez
authors: J
authors: Hribar
authors: Unit of Fruit Science, Technische Universität München, Dürnast 2, D-85354 Freising-Weihenstephan, Germany.
authors: Dieter
authors: D
authors: Treutter
mesh_terms: D018651:Cichorium intybus / Q000737:chemistry* / Q000254:growth & development; D002851:Chromatography, High Pressure Liquid; D003373:Coumaric Acids / Q000032:analysis; D016002:Discriminant Analysis; D005308:Fertilizers / Q000032:analysis*; D008903:Minerals; D010636:Phenols / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry; D025341:Principal Component Analysis
chemical_list: D003373:Coumaric Acids; D005308:Fertilizers; D008903:Minerals; D010636:Phenols
keywords: Cichoric acid; Fertilizer; HPLC-DAD; Hydroxycinnamic acid; Phenolic fingerprint