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2022 Volume 1 Issue 1
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SU Ming, PENG Shouhong, HUANG Jianxiang, et al. A Preliminary Research on Postharvest Preservation[J]. PLANT HEALTH AND MEDICINE, 2022, (1): 97-104. doi: 10.13718/j.cnki.zwyx.2022.01.014
Citation: SU Ming, PENG Shouhong, HUANG Jianxiang, et al. A Preliminary Research on Postharvest Preservation[J]. PLANT HEALTH AND MEDICINE, 2022, (1): 97-104. doi: 10.13718/j.cnki.zwyx.2022.01.014
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A Preliminary Research on Postharvest Preservation

  • 1. Hainan North Latitude 180 Fresh Fruit Co. Ltd., Dongfang Hainan 572600, China;

  • 2. Hainan Maple Love Agriculture Co. Ltd., Dongfang Hainan 572600, China;

  • 3. Institute of Tropical Crop Variety Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China

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  • Received Date: 02/01/2022

  • MSC: S436.5

  • In this study, 'Dahong' pitaya was used as the material to study the fresh-keeping effect of different storage conditions (room temperature and 8℃) for 30 days after harvest. The results showed that when stored at 8℃, the decay rate and weight loss rate of 'Dahong' pitaya fruit were lower than those stored at room temperature, and the freshness grade was better than that stored at room temperature. By comparing the fresh-keeping effects of 4 different storage temperatures on pitaya fruit stored for 30 days after harvest, it was found that the 5℃ was the best, and the higher the temperature, the worse the storage effect. Through the comparative study of pitaya fruits harvested at different periods of time at 8℃, it was found that the storage effect of 7-8 days after turning red was the best, but the storage time should not exceed 20 days.By comparing the control effects of different antibacterial compound formulations on pedicel mildew, it was found that the incidence of B. theobromae treated with antibacterial agents was significantly lower than that of the control. No mildew was found in the fruits treated with different antibacterial agents within 14 days of storage, and the incidence increased with storage time from 19 days to 28 days. The combination of isimuron 500 mg/L and imazole 300 mg/L showed the best inhibitory effect, and the incidence rate was only 11.7%, which was half of the incidence rate of combination of isimuron 500 mg/L+ thiobacillam methy 800 mg/L and isimuron 500 mg/L+ thiobacillam methyl 1 000 mg/L. Moreover, the pesticide residues on the 7th day after treatment with this compound formula were reduced to the maximum residue amount stipulated by GB 2763-2021.
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A Preliminary Research on Postharvest Preservation

  • Received Date: 02/01/2022

Abstract: In this study, 'Dahong' pitaya was used as the material to study the fresh-keeping effect of different storage conditions (room temperature and 8℃) for 30 days after harvest. The results showed that when stored at 8℃, the decay rate and weight loss rate of 'Dahong' pitaya fruit were lower than those stored at room temperature, and the freshness grade was better than that stored at room temperature. By comparing the fresh-keeping effects of 4 different storage temperatures on pitaya fruit stored for 30 days after harvest, it was found that the 5℃ was the best, and the higher the temperature, the worse the storage effect. Through the comparative study of pitaya fruits harvested at different periods of time at 8℃, it was found that the storage effect of 7-8 days after turning red was the best, but the storage time should not exceed 20 days.By comparing the control effects of different antibacterial compound formulations on pedicel mildew, it was found that the incidence of B. theobromae treated with antibacterial agents was significantly lower than that of the control. No mildew was found in the fruits treated with different antibacterial agents within 14 days of storage, and the incidence increased with storage time from 19 days to 28 days. The combination of isimuron 500 mg/L and imazole 300 mg/L showed the best inhibitory effect, and the incidence rate was only 11.7%, which was half of the incidence rate of combination of isimuron 500 mg/L+ thiobacillam methy 800 mg/L and isimuron 500 mg/L+ thiobacillam methyl 1 000 mg/L. Moreover, the pesticide residues on the 7th day after treatment with this compound formula were reduced to the maximum residue amount stipulated by GB 2763-2021.

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