Control of brown heart in Huangguan pears with 1-methylcyclopropene microbubbles treatment
2019
Xu, Fangxu | Dong, Shengzhong | Xu, Qi | Liu, Shiyang
Samples were treated with 1-methylcyclopropene microbubbles (1-MCP MB) for 5, 15 and 30 min with concentration of 1.0 μl L–1. One group of pears was fumigated with the same concentration of gaseous 1-MCP at 20 ± 2 ℃ for 24 h. The results showed application of 1-MCP MB and gaseous 1-MCP similarly controlled brown heart of pears compared with the control. 1-MCP MB treatment for 15 and 30 min reduced browning index, ethylene production, respiratory rate, hydrogen peroxide (H2O2) content, MDA content, PPO activity and improved firmness, soluble solid content, total phenols content, SOD activity, POD activity that was similar to that of gaseous 1-MCP treatment. In conclusion, our results indicated that 1-MCP MB treatment may be an efficient way to control brown heart in Huangguan pears.
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