1-MCP结合PVC处理对茎瘤芥贮藏品质的影响

为了研究75 μL/L的1-甲基环丙烯（1-Methylcyclopropene, 1-MCP）结合两种不同厚度（30、45 μm）的聚氯乙烯（polyvinyl chloride, PVC）包装处理在4 ℃贮藏条件下对茎瘤芥贮藏品质的影响。结果表明:在贮藏60 d，75 μL/L 1-MCP结合两种不同厚度（30、45 μm）的PVC处理茎瘤芥的硬度分别比对照组高312.13%、266.72%，衰老指数分别比对照组低50.00%、25.00%，保持着较高的商品率；叶绿素的含量分别比对照组高82.48%、89.31%，游离氨基酸总量均低于对照组；肉组织的过氧化物酶（peroxidase, POD）活性分别比对照组低64.29%、51.23%，皮组织的POD活性分别比对照组低73.47%、49.88%；肉组织苯丙氨酸解氨酶（phenylalamine ammonia lyase, PAL）活性分别比对照组低10.60%、10.44%，皮组织的PAL活性分别比对照组低71.23%、64.86%，并抑制了茎瘤芥粗纤维的积累。该研究可为茎瘤芥贮藏保鲜提供了一定的技术指导和理论参考。

Effect of 1-MCP Combined with PVC Treatment on Storage Quality of Tumorous Stem Mustard

The effect of combined treatments of 75 μL/L 1-Methylcyclopropene (1-MCP) combined with two different thicknesses (30, 45 μm) of polyvinyl chloride (PVC) packaging on the storage quality of tumorous stem mustard were investigated at 4 ℃. The results showed that, after 60 days of storage, the firmness of 75 μL/L 1-MCP combined with two different thicknesses of PVC (30 and 45 μm) -treated tumorous stem mustard was 312.13% and 266.72% higher than that of the control group, and the aging index was 50.00% and 25.00% lower than that of the control group, maintaining a high commodity rate; the chlorophyll content was 82.48% and 89.31% higher than that of the control group, and the total amount of free amino acids was lower than that of the control group; The activity of peroxidase (POD) in fresh tissue was 64.29% and 51.23% lower than the control group, and the activity of POD in the peel tissue was 73.47% and 49.88% lower than the control group; the activity of phenylalamine ammonia lyase (PAL) in the fresh tissue was 10.60% and 10.44% lower than the control group, and the activity of PAL in the peel tissue was lower than that of the control group by 71.23% and 64.86%, and inhibited the accumulation of the crude fiber of tumorous stem mustard. This research can provide certain technical guidance and theoretical reference for the storage and preservation of tumorous stem mustard.