The effectiveness of UV-C light treatments on microbial load and quality of fresh-cut pineapple sticks was studied. At all tested fluencies (200-4800 J/m2), UV-C light did not decrease the initial microbial load of pineapple sticks. Nevertheless, pineapple sticks submitted to 200 J/m2 UV-C light, packaged in conventional PET/EVOH/PE trays and stored at 6 °C up to 15 days showed slower yeast and lactic acid bacteria growth. In these samples, microbial counts were generally 2 log cycles lower that those observed in the untreated sticks. UV-C light did not promote changes in colour and increased consumer preference. Similar results were also obtained when UV-C light treatment was applied on pineapple sticks previously packaged in highly UV-C light transparent PA/PE pouches to avoid post treatment contamination. © 2015 Elsevier Ltd.

Impact of UV-C light on storage quality of fresh-cut pineapple in two different packages

MANZOCCO, Lara;Plazzotta, Stella;MAIFRENI, Michela;CALLIGARIS, Sonia;ANESE, Monica;NICOLI, Maria Cristina
2016-01-01

Abstract

The effectiveness of UV-C light treatments on microbial load and quality of fresh-cut pineapple sticks was studied. At all tested fluencies (200-4800 J/m2), UV-C light did not decrease the initial microbial load of pineapple sticks. Nevertheless, pineapple sticks submitted to 200 J/m2 UV-C light, packaged in conventional PET/EVOH/PE trays and stored at 6 °C up to 15 days showed slower yeast and lactic acid bacteria growth. In these samples, microbial counts were generally 2 log cycles lower that those observed in the untreated sticks. UV-C light did not promote changes in colour and increased consumer preference. Similar results were also obtained when UV-C light treatment was applied on pineapple sticks previously packaged in highly UV-C light transparent PA/PE pouches to avoid post treatment contamination. © 2015 Elsevier Ltd.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1070327
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