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Objective To study the effects of different concentrations of 1-methylcyclopropene (1-MCP) and phytic acid (PA) on the physiology and storage quality of Lycopersicon esculentum Mill.. Methods Based on the optimal concentration of 1-MCP and PA alone, the study was carried out under the conditions of room temperature (20±1) ℃ and relative humidity (80%-90%), and Lycopersicon esculentum Mill. without preservative treatment were used as the control, the full factorial composite experiments of 0.8 μL/L and 1 μL/L 1-MCP and 0.05% and 0.1% PA were carried out, and measured the mass loss rate, hardness, soluble solids content (SSC), ethylene release, peroxidase (POD) activity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging rate, and sensory evaluation of Lycopersicon esculentum Mill. during the storage period. Results The 1 μL/L 1-MCP+0.1% PA treatment group had a sensory evaluation score of 85.6 after 12 d of storage, with a weight loss of 0.93%, hardness of 5.04 kg/cm2, SSC content of 8.4%, ethylene release of 0.4398 μL/(kg·h), and POD vigour and DPPH radical scavenging rates of 96.9 U/g FW and 82.60%. Conclusion This study show that 1 μL/L 1-MCP+0.1% PA compound treatment is more helpful for the improvement of POD activity and DPPH radical scavenging rate, which in turn delayed the loss of quality, hardness and SSC, low ethylene release, and the overall maintenance of higher sensory scores, which effectively maintained a better storage quality and prolonged the freshness period of Lycopersicon esculentum Mill., and provided technical references for the freshness preservation of more categories of fruits and vegetables. It provides a technical reference for more categories of fruits and vegetables.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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