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投稿时间：2022-09-19
投稿时间：2022-09-19
中文摘要: 针对板栗贮藏期内失水严重、腐烂率高、营养成分降低等问题，以迁西3113 品种板栗为试材，研究1-甲基环丙烯（1-methylcyclopropene，1-MCP）协同壳聚糖（chitosan，COS）处理对板栗贮藏期品质的影响。结果表明：贮藏180 d，1-MCP 协同COS 复合处理的板栗比对照组呼吸高峰降低16.96%，且延迟30 d 到来；失重率、腐烂率分别降低65.82%、61.87%，差异显著（P＜0.05）；淀粉含量、维生素C 含量分别增加116.62%、75.44%，差异显著（P＜0.05）；多酚氧化酶（polyphenol oxidase，PPO）酶活峰值降低42.86%，过氧化物酶（peroxidase，POD）酶活峰值降低58.40%；抑制丙二醛（malondialdehyde，MDA）的积累，保持板栗组织结构完整。因此，1.00 μL/L 1-MCP 协同1.50% COS 复合处理对保持板栗果实贮藏期品质最有效。
Abstract:In view of the serious water loss，high decay rate，and low nutrient content of chestnut during storage，the effect of 1-methylcyclopropene（1-MCP）combined with chitosan（COS）on the quality of Qianxi 3113 chestnut during storage was investigated.The results showed that the respiration peak of chestnut treated with 1-MCP and COS was 16.96% lower than that of the control after 180 d of storage and that the peaking was 30 d later than that of the control.The weight loss rate and decay rate was 65.82% and 61.87% lower than those of the control，respectively（P＜0.05），and the content of starch and vitamin C was 116.62% and 75.44% higher than that of the control，separately（P＜0.05）.The peak activity of polyphenol oxidase（PPO）and peroxidase（POD）decreased by 42.86% and 58.40%，respectively，compared with that of the control.Moreover，the combination of 1-MCP and COS inhibited the accumulation of malondialdehyde （MDA）and ensured the intact structure of chestnut kernels.Among them，the combination of 1.00 μL/L 1-MCP with 1.50% COS was particularly remarkable in maintaining the quality of chestnut during storage.
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文章编号：202310010 中图分类号： 文献标志码：
基金项目:河北省重点研发计划项目（20327503D）
| 作者 | 单位 |
| 王晓东1，赵薇1，王梦雅1，梁富浩1，刘岳1，李丽梅2，李喜宏1*，姜瑜倩1* | 1.天津科技大学食品营养与安全国家重点实验室，天津 300457；2.迁西县盛益隆食品有限公司，河北 唐山 064300 |
| Author Name | Affiliation |
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