Comparison of Various Packaging Films for Mango Export

Abstract

This study compared the effects of the use of various types of packaging films in maintaining quality, preserving bioactive compounds and extending shelf life of the ‘Nam Dok Mai’ mango. The principal techniques for maintaining the quality of mangoes are based on modified atmosphere packaging using highly gas‐permeable films and an ethylene‐removing mechanism. The films studied were non‐perforated highly gas‐permeable film, non‐perforated ethylene‐absorbing highly gas‐permeable film (HNPE), micro‐perforated highly gas‐permeable films (HMP) and common non‐perforated polyethylene film (LNP). These films were compared with non‐packaging treatment, which served as a control (C). Gas composition (O2, CO2 and C2H4) in the package headspace was monitored during storage at 12°C. The quality of mangoes were assessed by weight loss, colour (L* a* b*), texture, total soluble solids, titratable acidity, total phenolics, total flavonoids, ethanol concentration and sensory quality. Equilibrium‐modified atmospheres of 5 kPaO2 + 5 kPaCO2 and 4 kPaO2 + 5 kPaCO2 were achieved in the non‐perforated highly gas‐permeable film and HNPE packs, respectively. Carbon dioxide accumulation was observed in the HMP and LNP packs where CO2 reached 17 and 10 kPa, respectively, after storage for 10 days. The shelf life of mangoes was extended to 40 days with HNPE, 35 days with HNP, and 30 days with HMP, as compared with 20 days with control and 5 days with LNP. HNPE, the film incorporated with fine particles of mordenite framework inverted‐type zeolite with ethylene‐absorbing ability, could further extend the shelf life of mangoes in addition to modified atmosphere packaging alone. Copyright © 2011 John Wiley & Sons, Ltd.

Microperforation of Three Common Plastic Films by Laser and Their Enhanced Oxygen Transmission for Fresh Produce Packaging

“…As illustrated in Figure and Table , the neat films with no perforation of BOPP, BOPET, and 0.5Si‐LDPE exhibit oxygen transmission rates (OTR) of 3689 ± 291, 777 ± 194, and 13 010 ± 1845 cm 3 /m 2 .d, respectively. With regard to the MA principle and our early findings, suitable packaging films for many types of fresh produce should have high OTR in a range of ~10 000 cm 3 /m 2 .d at a thickness of ~25 µm (or PO 2 of ~20 cm 3 .mm/m 2 .d) . For the films with lower OTR values, (e.g.…”

“…Common thermoplastic films such as polyethylene (PE) and polypropylene (PP) are widely used for packaging of fresh fruits and vegetables; however, most films possess too low oxygen permeability to be used for modified atmosphere packaging (MAP) of high‐respiring fresh produce. Packaging films with a relatively high oxygen transmission rate (OTR > 10 000 cm 3 /m 2 .d) and suitable water vapour transmission are required to create a desirable and beneficial modified atmosphere inside the package of fresh produce for shelf life extension . Using proper film with permeability well matched with respiration of the packaged commodity allows the flow of the respiratory gases (i.e.…”

Effects of film permeability on reducing pericarp browning, preventing postharvest decay and extending shelf life of modified atmosphere‐retail packaged longan fruits

“…Modified atmospheres of PE‐3000 and PE‐6000 best retained acceptable firmness of longan fruits. The results were different from our previous study in mangoes whose firmness was best maintained in PE‐10000 (Boonruang et al ., ). This was because mango had higher respiration rate (60.00 mg CO 2 kg −1 h −1 ) than longan (27.61 mg CO 2 kg −1 h −1 ), and hence, optimal modified atmosphere conditions were established in higher gas permeable film.…”

Active Packaging Applications for Food

“…Boonruang and others () tested 4 different packaging films for mango at 12 °C. The tested materials were nonperforated, highly gas‐permeable film, nonperforated highly gas‐permeable film with ethylene‐absorbing property, microperforated highly gas‐permeable film and common low‐density polyethylene film.…”