Fatty acid composition and antioxidant capacity of cypselas in Centaurea s.l. taxa (Asteraceae, Cardueae) from NE Anatolia
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Dosyalar
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier B.V.
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Fatty acid composition, antioxidant capacity of phenolics and oil in cypselas of 10 Centaurea and two related taxa collected from various natural habitats in Turkey were investigated. Total oil (1.88–19.13%) and concentration of the major fatty acids which are palmitic acid: C16:0 (5.22–12.06%), oleic acid: C18:1n9 (8.57–30.29%) and linoleic acid: C18:2n6 (49.15–79.15%) varied significantly (P < 0.05) among the taxa. Polyunsaturated (PUFA, 49.15–79.15%), saturated (SFA, 7.24–19.06%) and monounsaturated (MUFA, 9.02–31.52%) fatty acids also differed significantly (P < 0.05). Concentrations (mg/100 g dw) of total phenolic compounds (TPC; 761.25–352.71 and total flavonoids (TF; 291.90–117.74) were strongly associated and correlated with antioxidant capacity (μmol/g dw) tested by using DPPH (55.52–144.61), FRAP (27.44–86.32) and CUPRAC (27.02–94.38). A higher content of TPC or TF reflected a higher antioxidant capacity, and a reduction in TPC indicated low antioxidant capacity. Relative proportions and quantities of fatty acids can be used as additional biochemical markers in the taxonomy of Centaurea. The current study also revealed that the consumption of these species that is rich in total phenolics and antioxidants would have several beneficial effects in terms of prevention of diseases caused by oxidative stress.
Açıklama
Anahtar Kelimeler
Antioxidant capacity, Centaurea, Cypsela, Fatty acid, NE Anatolia, Phenolic compound
Kaynak
South African Journal of Botany
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
112
