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Effect of ultrasonication treatment on structural, physicochemical and bioactive properties of pasteurized rosehip (Rosa canina L.) nectar    
Yazarlar
İlyas Atalar
Bolu Abant İzzet Baysal Üniversitesi, Türkiye
Furkan Türker Sarıcaoğlu
Bursa Teknik Üniversitesi, Türkiye
Halil İbrahim Odabaş
Gümüşhane Üniversitesi, Türkiye
Volkan Arif Yılmaz
Ondokuz Mayıs Üniversitesi, Türkiye
Prof. Dr. Osman GÜL
Kastamonu Üniversitesi, Türkiye
Özet
The effect of ultrasonication process (US) on the physical and bioactive properties of pasteurized rosehip nectar was investigated. In order to solve sedimentation problem, two amplitude levels (50 and 100%) and different treatment times (5, 10, 15 and 30 min) were applied to rosehip nectars. Mean particle size decreased as amplitude and treatment time increased. US treatment caused to increase in redness and yellowness values of nectars and also color change was found noticeable as 1.9–2.6 at 100% amplitudes. US treated samples showed no sedimentation during storage for 15 days while control sample displayed 74% colloidal stability. All samples showed shear-thinning behavior and were characterized as weak gel network. Total phenolic and carotenoid contents and antioxidant activity was increased by US treatment, however, ascorbic acid content decreased. US treatment can be an alternative technology preventing sedimentation problems during shelf life with minimally affecting bioactive and physical properties of rosehip nectar.
Anahtar Kelimeler
Fruit juice | Stability | Total phenolics | Ultrasound processing | Viscosity
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı LWT
Dergi ISSN 0023-6438
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2020
Cilt No 118
Sayfalar 108850 /
Doi Numarası 10.1016/j.lwt.2019.108850
Makale Linki http://dx.doi.org/10.1016/j.lwt.2019.108850