| In this paper, Sinkiang thick-skinned melon cultivars (Golden Phoenix,86-1, Jiashi melon) were used as the test materials to carry out a pilot study on post-harvest storage and preservation. Sinkiang thick-skinned melon of Golden Phoenix were preserved with three storage methods respectively:cold storage, cold storage combined with0.45μL/L ozone interval treatment, controlled atmosphere storage (CA) with4%～6%O2and0.2%～0.5%CO2. Jiashi melon were treated with two methods:cold storage at2℃; wax-coating treatment under cold storage at2℃;86-1melons were carried out with cold storage and ozone treatment respectively. We investigate the effects of different treatments on the changes in physiology, biochemistry and pathology of melon cultivars in order to provide some theory basis and technical parameter for the storage of Sinkiang thick-skinned melon cultivars.The results showed that CA storage restrained respiration rate of melon markedly, postponed senescence process and also controlled the decline of flesh firmness and content of titratable acidity, total soluble solids, vitamin C and deoxidized sugar effectively. CA storage reduced rotten exponent of melon, kept better quality and flavor, and CA storage can significantly maintain melon aroma components. Compared and contrasted with intermittent ozone and cold storage with CA storage, th effect of cold storage with intermittent ozone was inapparent and cold storage was the worst. The test also found that the effect of cold storage with intermittent ozone treatment was better than cold storage, and CA storage had remarkable effect compared with cold storage with intermittent ozone treatment.Under the2℃storage reservoir conditions, the storage results using Iraqi source Jiashi melon fruit wax coating treatment are obvious, and2℃refrigeration ordinary compared to the coating treatment could significantly inhibit the Jiashi melon flesh firmness, soluble solids, respiratory decline in strength and slow down metabolism melon, be able to better maintain the quality of melon Jiashi to extend the shelf-life, and the appearance of melon color is better than an ordinary refrigerator.Under the cold storage at6℃,86-1melons were treated with ozone interval with the concentrations were2.5,1.5, and0.6μL/L respectively (48h interval) and successive ozone treatment with low concentration of0.2μL/L (90min each day). The result showed that successive ozone treatment and ozone interval treatment with2.5μL/L ozone can restrain respiration rate and the decrease in the firmness, TSS, TA, deoxidized sugar and total sugar, while maintain the species and content of aroma in melon and extend the shelf life without loss in quality. The higher the ozone concentration, the better quality were possessed in melon. The aroma species and contents with high concentration ozone were higher than those in low ozone.During postharvest and transportation, Sinkiang thick-skinned melon was subjected to black spot (Alternaria), white mold (Fusarium) and green mold (Penicillium) which were the main pathogenic microbes. It was detected in the test that’Golden Phoenix’was easily infected by Fusarium, Alternaria, Penicillium;and the main pathogenic in Jiashi melon were black spot and white mold;86-1melon was contaminated easily by white mold as well as black spot and green mold. Otherwise, the melon was easily infected through mechanical wound and fruit stalk. The humidity and temperature during storage condition were related to the species and degree of the fruit disease. Furthermore researches are needed in order to control the disease damages from the pathogens on the Sinkiang thick-skinned melon. |
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