Naslov
Effects of cold atmospheric gas phase plasma on anthocyanins and color in pomegranate juice

Autori
Bursać Kovačević, Danijela ; Putnik, Predrag ; Dragović-Uzelac, Verica ; Pedisić, Sandra ; Režek Jambrak, Anet ; Herceg, Zoran

Izvornik
Food chemistry (0308-8146) 190 (2016), 1; 317-323

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
anthocyanins; color; pomegranate juice; cold atmospheric gas phase plasma

Sažetak
The aim of the study was to evaluate effects of cold atmospheric gas phase plasma on anthocyanins and color in pomegranate juice. Outcomes of plasma treatment were observed at different operating conditions: (i) treatment time (3, 5, 7 min), (ii) treated juice volume (3, 4, 5 cm3), and (iii) gas flow (0.75, 1, 1.25 dm3/min). The greatest anthocyanin stability was found at: 3 min treatment time, 5 cm3 sample volume, and 0.75 dm3/min gas flow. Plasma treatment yielded higher anthocyanin content from 21% to 35%. Multivariate analysis showed that total color change was not associated with sample volume and treatment time, however it declined with increased gas flow. The change of color increased in comparison treated vs. untreated pomegranate juice. Constructed mathematical equation confirmed that increase of anthocyanin content increased with gas flow, sample volume and change in color. In summary, this study showed that plasma treatment had positive influences on anthocyanins stability and color change in cloudy pomegranate juice.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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