To study the inhibition mechanism of microporous packaging on cherry tomato softening during high temperature (35 ℃) logistics from the perspective of cell wall metabolism, the packing film of cherry tomato was drilled with holes of 8, 1, 0.3 and 0 mm, and the changes of fruit hardness, cell wall metabolism-related substances and enzyme activities were tested.The results showed that microporous packaging could significantly inhibit the softening of cherry tomatoes compared with non-microporous packaging (P<0.01), and the 0.3 mm group had the best retention effect on firmness.The reason was that microporous packaging could effectively inhibit the activities of pectinmethylesterase (PME), polygalacturonase (PG), cellulase (Cx), and galactosidase (β-Glu), thus delaying the decrease of original pectin and cellulose content and the increase of soluble pectin content, to better maintain fruit firmness.Therefore, the use of microporous packaging can effectively delay the softening process of cherry tomatoes in high-temperature logistics (35 ℃), better resist mechanical damage in logistics, and maintain better sensory characteristics.
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