人工气调对小青菜叶绿素降解的影响

doi:10.16429/j.1009-7848.2023.08.031

首页 > 过刊浏览>2023年第23卷第8期 >306-315. DOI:10.16429/j.1009-7848.2023.08.031

人工气调对小青菜叶绿素降解的影响
DOI:
                        10.16429/j.1009-7848.2023.08.031
                    
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作者单位:(1.浙江省农业科学院食品科学研究所 农业农村部果品产后处理重点实验室中国轻工业果蔬保鲜与加工重点实验室 浙江省果蔬保鲜与加工技术研究重点实验室 杭州 310021;2.福建农林大学食品科学学院 福州 350002;3.省部共建农产品质量安全危害因子与风险防控国家重点实验室 杭州 310021)
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基金项目:浙江省重点研发计划项目(2019C02079)

Effect of Controlled Atmosphere on the Degradation of Chlorophyll in Brassica chinensis L.

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(1.Food Science Institute， Zhejiang Academy of Agricultural Sciences， Key Laboratory of Post-harvest Handling of Fruits， Ministry of Agriculture and Rural Affairs， Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables， China National Light Industry， Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province， Hangzhou 310021;2.College of Food Science， Fujian Agricultural and Forestry Univercity， Fuzhou 350002;3.State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products，Hangzhou 310021)

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摘要:

本文研究了4% O₂条件下，不同CO₂比例(4% CO₂、8% CO₂、12% CO₂)的人工气调(CA)对小青菜外观品质和叶绿素降解的影响。结果表明:人工气调能够有效延缓小青菜的黄化，减小失重率，有效保持小青菜外观品质。对比空气环境贮藏的对照组，人工气调可以显著延缓小青菜中叶绿素a/b的降解，贮藏第12天，4% CO₂处理组中的叶绿素a/b含量分别为48.20，40.45 μg/g FW。在小青菜贮藏前4 d，人工气调可抑制叶绿素酶、脱镁螯合酶活力的上升，其中4% CO₂处理组的叶绿素酶活力为23.09 U/g FW，脱镁螯合酶活力较对照组降低了43.03%。在贮藏后期，4% CO₂处理有效延缓脱镁叶绿素酶、叶绿素过氧化物酶活力的升高，分别为5.49，1.90 U/g FW。总的来看，小青菜在4% O₂+4% CO₂人工气调贮藏下效果较好。

Abstract:

This paper studied the effects of controlled atmosphere(CA) with different CO₂ ratios (4% CO₂， 8% CO₂， 12% CO₂) on the appearance quality and chlorophyll degradation of Brassica chinensis L. under the condition of 4% O₂. The results showed that CA could effectively delay the yellowing of Brassica chinensis L.， reduce the weight loss rate and effectively maintain the appearance quality of Brassica chinensis L. Compared with the control group stored in the air environment， CA could significantly delay the degradation of chlorophyll a/b in Brassica chinensis L. On the 12th day of storage， the chlorophyll a/b content in the 4% CO₂ treatment group was 48.20 μg/g FW and 40.45 μg/g FW. 4 days before storage， the activity of chlase and MD was inhibited by CA， the activity of chlase in 4% CO₂ treatment group was 23.09 U/g FW， and MD was 43.03% lower than that in control group. At the later stage of storage， 4% CO₂ treatment effectively delayed the increase of the activity of PPH and Chl-POX， which were 5.49 U/g FWand 1.90 U/g FW. In general， the CA condition of 4% O₂ + 4% CO₂ seemed to be optimal for Brassica chinensis L. storage.

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朱凯,韩延超,房祥军,吴伟杰,庞杰,刘瑞玲,郜海燕.人工气调对小青菜叶绿素降解的影响[J].中国食品学报,2023,23(8):306-315

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收稿日期:2022-08-26
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在线发布日期: 2023-09-01
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