Effect of Low Temperature Combined with GABA on Postharvest Quality of Cherry Tomato

doi:10.11924/j.issn.1000-6850.casb2021-0819

Abstract

Abstract:

The effect of low temperature combined with GABA on the postharvest quality of cherry tomato was investigated to provide a theoretical basis for new postharvest preservation technology of cherry tomato. The ‘Fenjiao’ cherry tomato was used as test material in this study, and we set up 3 treatments of water immersion+ room temperature (25℃) storage, water immersion+ low temperature (8℃) storage, and GABA (500 mg/L) solution immersion+ low temperature (8℃) storage. During the storage period of 16 days, the fruit decay rate was investigated and the fruit respiratory intensity, fruit hardness, soluble solids, vitamin C, citric acid and carotenoid contents of cherry tomato were determined. The results indicated that, compared with room temperature (25℃) storage, low temperature alone and low temperature combined with GABA treatment significantly reduced the decay rate of cherry tomato during storage, and the control effects reached 45.81% and 63.11% respectively after 16 days of storage, indicating that low temperature combined with GABA treatment was better than low temperature storage alone. At the same time, low temperature combined with GABA treatment significantly reduced the respiratory intensity of fruit, delayed the reduction of fruit hardness, maintained high contents of soluble solids, vitamin C and citric acid, and inhibited the accumulation of lycopene, β-carotene and lutein of cherry tomato during storage. Therefore, low temperature combined with GABA treatment could effectively delay the decay and senescence and maintain the postharvest quality of cherry tomato, indicating that it has a good application prospect in preserving cherry tomato.

Key words: cherry tomato, low temperature combined with GABA, postharvest fruit quality

CLC Number:

TS255.3

GONG Deqiang, LI Min, GAO Zhaoyin, YANG Yan, GU Hui, HU Meijiao. Effect of Low Temperature Combined with GABA on Postharvest Quality of Cherry Tomato[J]. Chinese Agricultural Science Bulletin, 2021, 37(36): 54-60.

Figures/Tables 9

References 28

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