不同臭氧处理对甜瓜采后生理影响

白友强; 廖亮; 许建; 赵晓敏; 王智弘浩; 董子凡; 谢季云; 杜林笑; 马楠; 李丹; 李学文

doi:10.13386/j.issn1002-0306.2017.23.047

不同臭氧处理对甜瓜采后生理影响

Effects of different ozone treatments on postharvest physiological of melon

摘要

摘要: 以哈密瓜西州蜜17号为实验材料,在低温(6~8℃,RH80%~85%)环境下对甜瓜分别采取不同臭氧浓度(2.14、4.28、6.42 mg/cm~3)和不同间隔时间(12、24、48 h)处理,每次通入臭氧后进行密闭处理40 min,研究不同臭氧处理对甜瓜在整个贮藏保鲜42 d中的变化。结果表明:臭氧处理能够有效延缓相对电导率的上升,可滴定酸和抗坏血酸平均每天仅下降1.1%、1.2%,臭氧对其下降起到了明显的抑制作用,同时降低了23%的呼吸速率,推迟7 d出现呼吸高峰,腐烂指数仅为对照组的6.8%。臭氧浓度4.28 mg/cm~3、处理间隔时间24 h可以最好的保持甜瓜果实采后品质,延长了低温贮藏时间。本文为甜瓜采后贮运保鲜提供了可行的方法。

Abstract: In this paper, “Xizhoumi No.17”was used as material, and the experiment was carried out at 6⁸℃with RH80%⁸5%.The ozone concentration was 2.14, 4.28, 6.42 mg/cm³and the interval was 12, 24, 48 h and for closed handling 40 min.The effects of different ozone treatments on the physiological of melon during the whole 42 d storage period was studied.The results showed that ozone treatment can delay the increase of conductivity, inhibit the decline of TA and V_Cwhose average daily decline only of 1.1and1.2%respectictively.Ozone treatment also reduced the respiration rate by 23%, postphoned respiration peak by 7 days, and its decay index was only 6.8%of the control.Ozone concentration of 4.28 mg/cm³and the interval of 24 h can best guarantee the quality and extend the low temperature storage time of melon fruit, which provides a feasible method for the storage, transportation and preservation of melon.