刘佰霖;王文辉;马风丽;王阳;杜艳民;贾晓辉;

• 1:中国农业科学院果树研究所

摘要(Abstract)：

【目的】研究不同厚度的保鲜袋自发气调包装和乙烯吸收剂对‘玉露香’梨采后生理和贮藏品质的影响,为生产应用提供技术参考。【方法】分别将商业成熟的‘玉露香’梨采用0.02 mm PE袋、0.02 mm PE袋+乙烯吸收剂、0.03 mm PE袋、0.03 mm PE袋+乙烯吸收剂、0.04 mm PE袋和0.04 mm PE袋+乙烯吸收剂扎口处理形成自发气调环境,于温度(0±0.5)℃、相对湿度90%～95%条件下贮藏,并以0.02 mm PE袋不扎口为对照处理。定期监测不同包装袋内O2、CO2和乙烯浓度,在‘玉露香’梨冷藏150 d和210 d时测定各处理果实叶绿素荧光参数、叶绿素含量、果实硬度、可溶性固形物、可滴定酸、抗坏血酸、货架期呼吸强度和乙烯释放量等理化指标,并调查果心褐变情况。【结果】采用扎口处理的不同厚度保鲜袋内气体成分在第35天时达到平衡,气调能力水平由高到低依次为0.04 mm PE袋>0.03 mm PE袋>0.02 mm PE袋,CO2浓度最高可达到3.2%,最低为0.9%。与其他厚度保鲜袋相比,采用0.03 mm PE袋包装进行自发气调处理能够抑制果皮叶绿素含量、Fm、Fv和Fv/Fm的下降,果实硬度与对照无显著差异,但果心褐变指数显著高于对照,可溶性固形物含量显著低于对照。【结论】0.03 mm PE袋的自发气调可使环境维持在O2为18.7%～19.5%、CO2为1.2%～1.5%时有效保持‘玉露香’梨果实果面绿色,但降低了果实可滴定酸、维生素C等内在品质,同时增加了果心褐变程度。乙烯吸收剂对保绿效果不明显,因此,需要自发气调结合1-MCP处理,从而既达到保绿效果,又能有效维持果实内在品质的目标。

关键词(KeyWords)： ‘玉露香’梨;自发气调;乙烯吸收剂;品质;保绿

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFD0400903-06);; 中央级公益性科研院所基本科研业务费专项(1610182019027);; 国家现代农业产业技术体系建设专项(CARS-29-19);; 中国农业科学院科技创新工程(CAAS-ASTIP)

作者(Author): 刘佰霖;王文辉;马风丽;王阳;杜艳民;贾晓辉;

Email:

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