Gas phase plasma impact on phenolic compounds in pomegranate juice (CROSBI ID 218977)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Herceg, Zoran ; Bursać Kovačević, Danijela ; Gajdoš Kljusurić, Jasenka ; Režek Jambrak, Anet ; Zorić, Zoran ; Dragović-Uzelac, Verica
engleski
Gas phase plasma impact on phenolic compounds in pomegranate juice
The aim of the study was to evaluate the effect of gas phase plasma on phenolic compounds in pomegranate juice. The potential of near infrared reflectance spectroscopy combined with partial least squares for monitoring the stability of phenolic compounds during plasma treatment was explored, too. Experiments are designed to investigate the effect of plasma operating conditions (treatment time 3, 5, 7 min ; sample volume 3, 4, 5 cm3 ; gas flow 0.75, 1, 1.25 dm3 min−1) on phenolic compounds and compared to pasteurized and untreated pomegranate juice. Pasteurization and plasma treatment resulted in total phenolic content increasing by 29.55% and 33.03%, respectively. Principal component analysis and sensitivity analysis outputted the optimal treatment design with plasma that could match the pasteurized sample concerning the phenolic stability (5 min/4 cm3/0.75 dm3 min−1). Obtained results demonstrate the potential of near infrared reflectance spectroscopy that can be successfully used to evaluate the quality of pomegranate juice upon plasma treatment considering the phenolic compounds.
Cold atmospheric gas phase plasma; pomegranate juice; phenolic compounds; near infrared reflectance spectroscopy
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