EFFECT OF 1-MCP, ETHYLENE ABSORBER AND OZONE ON MELON QUALITY DURING STORAGE
臭氧、1-MCP對甜瓜貯藏品質(zhì)影響研LIEN PHUONG LE NGUYEN1*, VIVIEN HORVÁTH1, GÉZA HITKA1, TAMÁS ZSOM1, ZOLTÁN KÓKAI1
This work was aimed to investigate the effect of 1-methylcyclopropene (1-MCP), ethylene absorber (EA), ozone alone or in combination on ethylene production, respiration rates, acoustic firmness, surface color, chlorophyll fluorescence parameters, and disease severity of melon. Melons treated with 1-MCP at 5 °C were stored with sachets of Ethyl Stopper containing KMnO4 (Bioconservacion S.A., Spain) or ozone at 0.1 ppm/h during 10 days at 5 °C and subsequent 4 days of shelf-life at 20 °C. Samples treated with 1-MCP were firmer than the rest of the samples during storage. In addition, 1-MCP could slow the postharvest yellowing of melon rind compared to other treatments. The combination of 1-MCP and EA did not offer any additional effect in comparison with 1-MCP alone. Ozone treatment during cold storage decreased disease severity, however, fruits exposed to ozone had more serious decay throughout shelf-life, probably due to the poor quality of air in the chamber. Thus, the utilization of ozone in postharvest management and market environment should be considered for potential benefit.
研究了1-甲基環(huán)丙烯(1-MCP)、乙烯吸收劑(EA)、臭氧單獨(dú)或聯(lián)合使用對甜瓜乙烯產(chǎn)量、呼吸速率、聲硬度、表面顏色、葉綠素?zé)晒鈪?shù)和病害嚴(yán)重程度的影響。在5℃下用1-mcp處理過的甜瓜，在5℃下10天和隨后的4天保質(zhì)期內(nèi)，用含kmno4(BioconServicin S.A.，西班牙)或0.1ppm/h臭氧的乙基塞袋儲存，在20℃下保存4天。用1-mcp處理過的樣品比其他樣品在儲存期間更堅(jiān)固。此外，與其他處理相比，1-MCP還可以減緩瓜皮的采后黃變。與單用1-MCP相比，單用1-MCP和EA的聯(lián)合治療沒有提供任何額外的效果。冷藏期間的臭氧處理降低了疾病的嚴(yán)重程度，但是，在整個(gè)保質(zhì)期內(nèi)，暴露在臭氧中的水果有更嚴(yán)重的腐爛，這可能是由于貯藏室中的空氣質(zhì)量較差。因此，應(yīng)考慮在收獲后管理和市場環(huán)境中利用臭氧的潛在效益。
Keywords:1-MCP, ethylene absorber, ozone, melon, storage
Ethylene production.Ethylene production was determined by an ICA56 hand-held ethylene analyzer (International Controlled Atmosphere Ltd., UK) upon the measured ethylene production of the samples being held for a given time (about an hour) in a hermetically closed plastic container. Results were expressed in microliter of ethylene produced per kilogram of fruit in 1 h (μl·kg-1·h-1).
乙烯產(chǎn)量由一臺ICA56手持式乙烯分析儀(英國ICA公司)根據(jù)在密封塑料容器中保存給定時(shí)間(約一小時(shí))的樣品的乙烯產(chǎn)量進(jìn)行測定。結(jié)果以每公斤水果在1小時(shí)內(nèi)產(chǎn)生的微升乙烯(μl·kg-1·h-1)表示。
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