Stability of fruit juice drinks in aseptic packages
2001; Wiley; Volume: 14; Issue: 2 Linguagem: Inglês
10.1002/pts.538
ISSN1099-1522
AutoresRosa Maria Vercelino Alves, Claire I. G. L. Sarantópoulos, Elisabete Segantini Saron, M R Bordin,
Tópico(s)Postharvest Quality and Shelf Life Management
ResumoAbstract Cashew and passion fruit juice drinks were aseptically filled in cartons and in three types of plastic packages (with oxygen transmission rate‐OTR of 1,40; 2,96 and 13,74 cm 3 (STP)/m 2 /day at 25 °C, 75% RH and 1 atm), with nitrogen gas flushing. No adverse effect on product sterility was found, neither were any significant changes in pH and acidity detected during storage at 25 ± 2°C. A decrease of the oxygen concentration in the headspace of the cashew juice drink plastic packs was observed, which appears to be caused by consumption of that gas in oxidation reactions. The shelf‐life of the cashew juice drink was limited to 45–70 days, after which period sensory changes attained objectionable levels (development of dark colours and deterioration of the typical fruit flavour). Passion fruit juice drink proved to be less sensitive to oxygen than cashew, since an increase of the oxygen concentration was detected in the headspace of the three plastic packs. The shelf‐life of passion fruit juice drink was limited to 70–90 days, due to deterioration of the typical passion fruit flavour and colour. Copyright © 2001 John Wiley & Sons, Ltd.
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