NDLI: Effect of harvest time on physico-chemical properties and bioactive compounds of pulp and seeds of grape varieties

Content Provider	Springer Nature Link
Author	Özcan, Mehmet Musa Juhaimi, Fahad Al Gülcü, Mehmet Uslu, Nurhan Geçgel, Ümit Ghafoor, Kashif Dursun, Nesim
Copyright Year	2017
Abstract	In this study, physicochemical properties and bioactive compounds of three grape varieties (Cardinal, Müşküle 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% (Müşküle 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.
Starting Page	2230
Ending Page	2240
Page Count	11
File Format	PDF
ISSN	00221155
Journal	Journal of Food Science and Technology
Volume Number	54
Issue Number	8
e-ISSN	09758402
Language	English
Publisher	Springer India
Publisher Date	2017-05-06
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Grape Bioactive compounds Antioxidant Fatty acid composition Harvest time Food Science Nutrition Chemistry/Food Science
Content Type	Text
Resource Type	Article
Subject	Food Science

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