Abstract
In this study, cold plasma (CP) was applied in fresh-cut cantaloupe to investigate the changes of quality attributes and flavors. Results showed that CP maintained the qualities by suppressing the decrease of color, ascorbic acid, soluble solid contents and firmness in fresh-cut cantaloupe stored at 4 °C for 10 days. Besides, CP significantly inhibited the decrease of aldehyde at the early storage but promoted the conversion of aldehydes into downstream volatiles afterwards. Total alcohols increased firstly but decreased afterwards and CP inhibited the decrease of alcohols at 4 d and 6 d mainly due to (Z)-3-none-1-ol accumulation. For the floral- and fruity-note aromas, most of esters, ketones and lactones increased at first and then decreased afterwards, and CP inhibited decrease of these three aromas. Furthermore, CP induced the activities of lipoxygenase, hydroperoxide lyase and alcohol O-acyltransferase, indicating that CP promoted the conversion of aldehydes and alcohols into esters by enhancing the activities of these three key enzymes.
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