Effect of active package on postharvest quality of bi-color sweet corn

Abstract

The study showed the effects of different active packaging on the quality of bi-color sweet corn. Bi-color sweet corn was packed in perforated polyethylene bag, polypropylene bag, active package type 1 (OTR of 10,000-12,000 ml/m2-day), active package type 2 (OTR of 12,000-14,000 ml/m2-day), and active package type 3 (OTR of 14,000-16,000 ml/m2-day) prior to storage at 4°C. The results showed that O2 concentration in active packaging ranged between 1.10-3.87% while CO2 concentration ranged from 7.03-9.97%. The concentrations of O2 and CO2 in polypropylene bag were 0.00% and 42.10%, respectively (day 6). In addition, active package type 1 could slow the loss of fresh weight, delay vitamin C and total soluble solids degradation, and extend the maximum shelf life up to 19 days. In contrast, bi-color sweet corn packed in perforated polyethylene bag had only 13 days of shelf life