ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (3): 115-124. doi: 10.7668/hbnxb.20191953

Special Issue: Pear

• Tillage & Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Effects of PE Film Bags Combined with 1-MCP, Ethylene Absorbent on Postharvest Physiological Quality of Hongxiangsu Pear

WANG Zhihua, JIA Chaoshuang, WANG Wenhui   

  1. Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Fruit Storage and Processing Key Laboratory of Liaoning Province, Xingcheng 125100, China
  • Received:2021-02-15 Published:2021-06-28

Abstract: In order to investigate the effects of different materials of modified atmosphere packaging on the postharvest physiology and storage quality of Hongxiangsu pear, six kinds of packaging treatments, such as CK, high exudation CO2 bag, PE bag, PE bag + 1-MCP preservative, PE bag + ethylene absorbent, PVC bag, were studied. The fruits of Hongxiangsu pear were refrigerated at (0±0.5)℃ for 120, 180, 240 d. After being taken out, the fruits were balanced at 20℃ for 24 h and stored for 7 d. The changes of respiration rate, ethylene release, ethanol and acetaldehyde contents, fruit appearance and internal quality were measured and the contents of CO2, O2 and ethylene in different bags were monitored regularly. The results showed that compared with CK and high exudation CO2 bag, PE bag and PVC bag had good air conditioning ability, which could significantly reduce the volume fraction of O2 and increase the volume fraction of CO2, but the ethylene concentration in the bag was also relatively high, while the ethylene concentration in PE bag + ethylene absorbent bag was relatively low. Compared with CK fruit, the other four kinds of packaging treatments except high exudation CO2 bag could delay the decline of fruit firmness and the yellowing of peel in the middle and later storage periods, maintain relatively high soluble solid content. Among them, the PE bag+1-MCP preservative not only maintained better appearance and normal taste flavor of Hongxiangsu pear fruit during cold storage and shelf life, but also significantly reduced the fruit respiration rate, ethylene release, mass fraction of ethanol and acetaldehyde. However, when the fruits were stored in PVC bags for 240 d and stored at 20℃ for 7 d shelves, some fruits showed browning and abnormal flavor. For Hongxiangsu pear stored in medium and long term, the PE bag+1-MCP preservative treatment had the best storage effect, followed by single PE bag and PE bag + ethylene absorbent. PVC bag was not recommended for Hongxiangsu pear.

Key words: Hongxiangsu pear, PE bag, 1-methylcyclopropene(1-MCP), Ethylene absorbent, Shelf-life, Fruit quality

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Cite this article

WANG Zhihua, JIA Chaoshuang, WANG Wenhui. Effects of PE Film Bags Combined with 1-MCP, Ethylene Absorbent on Postharvest Physiological Quality of Hongxiangsu Pear[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(3): 115-124. doi: 10.7668/hbnxb.20191953.

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