Effect of harvest time on physico-chemical properties and bioactive compounds of pulp and seeds of grape varieties
Yükleniyor...
Dosyalar
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer India
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, physicochemical properties and bioactive compounds of three grape varieties (Cardinal, MuAYkule and Razaki) harvested at the three different harvest times (on time, one and two weeks earlier) were investigated. The highest antioxidant activity, total phenolic and flavonoid contents were observed in Razaki pulp and these were 82.854%, 127.422 mg/100 g, 3.873 mg/g, respectively. The contents of bioactive compounds in grape seeds were found higher than those in pulps. Similarly, seed of Razaki had higher antioxidant activity (91.267%) and total phenolic content (477.500 mg/100 g) when compared to results of other varieties. The key phenolic compounds of all grape variety and seeds were gallic acid, 3,4-dihydroxybenzoic acid, (+)-catechin ve 1,2-dihydroxybenzene. The oil content of grape seeds ranged from 8.50% (Razaki harvested one week ago) to 19.024% (MuAYkule harvested one week ago). The main fatty acids of grapeseed oils were linoleic, oleic and palmitic acids. In addition, the oil of Razaki seeds was rich in tocopherols when compared to the other varieties.
Açıklama
Anahtar Kelimeler
Grape, Bioactive compounds, Antioxidant, Fatty acid composition, Harvest time, Vitis-Vinifera L., Phenolic Composition, Cabernet-Sauvignon, Wine Grapes, Oils
Kaynak
Journal of Food Science and Technology-Mysore
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
54
Sayı
8