Determining total phenolic content and total antioxidant capacity of loquat cultivars grown in Hatay       
Yazarlar (6)
Aytekin A. Polat
Mustafa Kemal Üniversitesi, Türkiye
Oĝuzhan Caliskan
Mustafa Kemal Üniversitesi, Türkiye
Sedat Serce
Mustafa Kemal Üniversitesi, Türkiye
Prof. Dr. Onur SARAÇOĞLU Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Cemal KAYA Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Mustafa Özgen
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Pharmacognosy Magazine
Dergi ISSN 0973-1296 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 02-2010
Cilt No 6
Sayı 21
Sayfalar 5 / 8
DOI Numarası 10.4103/0973-1296.59959
Makale Linki http://www.phcog.com/text.asp?2010/6/21/5/59959
Özet
Several fruit characteristics of five loquat (Eriobotrya japonica (Thunb.) Lindl.) cultivars/selections grown in Drtyol, Hatay, Turkey were investigated in 2008. The cultivars/selections included ′Baduna 5′, Gzelyurt 1, ′Hafif ukurgbek′, ′Ottaviani,′ and Type 1. The characteristics evaluated included fruit weight, width, length, seed number and weight, flesh/seed ratio, total soluble solids (TSS), pH, acidity, total phenolic (TP) content, and total antioxidant capacity (TAC), determined by the ferric reducing antioxidant power (FRAP) assay. The analyses were conducted by three replicates, with 30 fruits in each replicate. The results indicated that there were significant differences among the cultivars, for all the traits tested. For example, ′Hafif ukurgbek′ and ′Ottaviani′ had smaller fruits than others, although ′Hafif ukurgbek′ had heavier seeds. The flesh/seed ratio was the highest in Type 1, while ′Hafif ukurgbek′ had the highest pH and high soluble solids. ′Baduna 5′ and ′Hafif ukurgbek′ had the highest acidity. The TP ranged from 129 (′Baduna 5′) to 578 (′Hafif ukurgbek′) mg gallic acid equivalent (GAE)/kg fresh fruit (fw). ′Hafif ukurgbek′ also had the highest FRAP mean (12.1 mmol Trolox Equivalent (TE)/kg fw). The results suggest that loquat cultivars have a variable range of TP content and a relatively high total antioxidant capacity, which is crucial for human health.
Anahtar Kelimeler
Antioxidant | Eriobotrya japonica | Ferric reducing ability of plasma | Fruit | Phenolics | Pomology | TEAC