Scientia Agricultura Sinica

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Effects of Low Oxygen/High Carbon Dioxide Controlled Atmosphere Combined with 1-Methylcyclopropene (1-MCP) on Quality of Yuluxiang Pear during Cold Storage #br#

JIA XiaoHui1, ZHANG XinNan1, LIU BaiLin1,2, MA FengLi1, DU YanMin1, WANG WenHui1* #br#   

  1. 1Institute of fruit trees, Chinese Academy of Agricultural Sciences/Liaoning Key Laboratory of fruit storage and processing, Xingcheng 125100, Liaoning; 2Dezhou Academy of Agricultural Sciences, Dezhou 253015, Shandong
  • Published:2022-08-21

Abstract: 【ObjectiveThe objective of this study was to clarify the effects of a controlled atmosphere (CA) with low O2/high CO2 on chlorophyll maintenance and quality of Yuluxiang pears during cold storage, to provide a theoretical basis and technical support for prolonging the storage life of Yuluxiang pears.MethodsStorage experiments were performed with commercial mature Yuluxiang pears treated with 1.0 μL·L-11-MCP, 1% O2, 3% CO2, and 1.0 μL·L-11-MCP combined with 1% O2 and 3% CO2 with air treatment as the control. The peel color, chlorophyll content, firmness, total soluble solids, titratable acid, ascorbic acid, and other quality indices were measured at 210 and 240 days of storage and 7 days of shelf life. Ethanol and acetaldehyde content, ethylene production, and respiratory rate of the fruits were detected by gas chromatography. The browning index of the fruit stalk and core was investigated and calculated.ResultsCompared with ordinary cold storage, 1-MCP, CA, and CA + 1-MCP could better maintain the green color of Yuluxiang pear fruits and effectively reduce the degree of greasiness on the fruit surface. CA + 1-MCP had a more pronounced effect on the green color maintenance and greasiness control of the peel when refrigerated for 240 days and 240 + 7 days. 1-MCP and CA could inhibit the decline in fruit firmness, total soluble solids, and titratable acid. CA could inhibit browning of the core and stalk, but CA used alone reduced the content of ascorbic acid in the fruits, and CA + 1-MCP slowed the decline of ascorbic acid in CA fruits. The inhibitory effect of CA + 1-MCP on ethanol and acetaldehyde was more apparent when stored for 240 days, and the ethanol content of 20mg · L-1 was below the tolerance threshold of Yuluxiang pears. CA + 1-MCP and 1-MCP had strong inhibitory effects on ethylene production across the entire storage period. At 240 days, CA + 1-MCP and CA had a stronger inhibitory effect on the respiratory rate than did 1-MCP.ConclusionYuluxiang pears are respiratory climacteric pears, resistant to low O2 and high CO2. The freshness maintenance effect of CA + 1-MCP on Yuluxiang pears was maintained after 210 days. Therefore, when the cold storage period is less than 210 days, a single 1-MCP treatment of 1.0 μ L · L-1 could be used. When the cold storage period is greater than 210 days, fruits should be first treated with 1.0 μL·L-1 1-MCP, and then stored under CA with low O2/high CO2 of 1% O2 and 3% CO2, which can maintain the appearance and internal quality of fruits, as well as significantly prolong the cold storage life.


Key words: Low O2/high CO2, 1-MCP, Yuluxiang , pear, chlorophyll maintenance, quality

[1] JIA XiaoHui, ZHANG XinNan, LIU BaiLin, MA FengLi, DU YanMin, WANG WenHui. Effects of Low Oxygen/High Carbon Dioxide Controlled Atmosphere Combined with 1-Methylcyclopropene on Quality of Yuluxiang Pear During Cold Storage [J]. Scientia Agricultura Sinica, 2022, 55(23): 4717-4727.
[2] CHANG LiGuo,HE KunHui,LIU JianChao. Mining of Genetic Locus of Maize Stay-Green Related Traits Under Multi-Environments [J]. Scientia Agricultura Sinica, 2022, 55(16): 3071-3081.
[3] JIA Xiao-hui, WANG Wen-hui, TONG Wei, DU Yan-min, WANG Zhi-hua, JIANG Xiu-cheng . Effect of Modified Atmosphere Packaging on Postharvest Physiology and Quality of ‘Korla Xiangli’ Pears During Storage [J]. Scientia Agricultura Sinica, 2016, 49(24): 4785-4796.
[4] LIU Chun-Xiao-1, ZHAO Hai-Jun-1, DONG Shu-Ting-2, WANG Qing-Cheng-1, LI Zong-Xin-1, LIU Kai-Chang-1. Study on Characteristics of Nitrogen Metabolism in Diallel Cross Generation of Different Maize Genotypes After Silking [J]. Scientia Agricultura Sinica, 2014, 47(1): 33-42.
[5] ZHANG Zi-Shan, YANG Cheng, GAO Hui-Yuan, LI Geng, LIU Peng. Relationship Between Photochemistry Activity and Decrease in Chlorophyll Content During Senescence in Leaves of Stay Green and Quick-Leaf-Senescence Inbred Line of Maize [J]. Scientia Agricultura Sinica, 2012, 45(23): 4794-4800.
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