首页|贮藏微环境气体调控对蓝莓冷藏期果实品质及挥发性物质的影响

贮藏微环境气体调控对蓝莓冷藏期果实品质及挥发性物质的影响

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为了探讨不同贮藏微环境气体调控对蓝莓果实的保鲜效果,以伯克利蓝莓为试材,研究便携式塑料箱式气调(简称气调)、便携式塑料箱式气调结合1-MCP处理(简称气调+1-MCP)对蓝莓冷藏期果实品质及挥发性物质的影响.结果表明:贮藏30 d后,气调组O2含量3.2% ~9.4%,CO2含量9.9%~19.1%;气调+1-MCP组O2含量3.4%~10.3%,CO2含量7.4%~18.4%.气调+1-MCP处理的贮藏微环境气体调控对于维持蓝莓好果率、果肉平均硬度以及可滴定酸含量,抑制蓝莓的呼吸强度方面效果显著优于气调,气调优于单纯冷藏(ck,对照);在延缓蓝莓可溶性固形物及Vc含量下降方面气调+1-MCP效果最好,气调次之,但三者差异不显著.蓝莓果实的挥发性物质以萜类化合物为主(66% ~75%)、醛类次之(15% ~ 22%);在贮藏过程中3种处理蓝莓醛类化合物均呈下降趋势,下降速度为ck>气调>气调+1-MCP组,萜类化合物均呈上升趋势,其中ck上升幅度最大,气调+ 1-MCP组变化幅度最小.
Effect of storage microenvironment gas regulation on blue-berry quality and volatile substances during cold storage
The effect of different storage microenvironment gas regulations during cold storage on the fruit quality and volatile substances of ‘Berkeley’ blueberries between portable plastic box modified atmosphere(referred atmosphere) and portable plastic box modified atmosphere with 1-MCP(referred atmosphere + 1-MCP) was investigated.The results indicated that the gas contents of atmosphere was O2 3.2% ~9.4%,CO2 9.9% ~ 19.1%;atmosphere + 1-MCP was O2 3.4% ~ 10.3%,CO2 7.4% ~ 18.4% after cold storage 30 d.The effects of atmosphere + 1-MCP storage microenvironment gas regulation were more effective than atmosphere,and atmosphere were more effective than single cold storage on maintaining higher levels of blueberry good fruit rate,mean flesh firmness,TA and restraining blueberry respiration intensity;the differences of three treatments on postponing the descent of TSS and VC content were not significant,among them,atmosphere + 1-MCP was best and gas regulation followed.The volatile components of blueberry were mainly terpenes (66% ~75%) and aldehydes (15% ~ 22%);Three treatments resulted in lower levels of aldehydes and the decline rate was ck > atmosphere > atmosphere + 1-MCP during cold storage,while contents of terpenes was in upward trend with the largest increase of ck,the smallest rise of atmosphere + 1-MCP.

blueberrygas regulationqualityvolatile substances

李天元、张鹏、李江阔、孙浩

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大连工业大学食品学院,辽宁大连,116034

国家农产品保鲜工程技术研究中心(天津),天津市农产品采后生理与贮藏保鲜重点实验室,300384

蓝莓 气体调控 品质 挥发性物质

天津市科技支撑重点项目“十二五”国家科技支撑计划项目江北区科技计划项目

15ZCZDNC001402015BAD16B092015B10

2016

食品与发酵工业
中国食品发酵工业研究院 全国食品与发酵工业信息中心

食品与发酵工业

CSTPCDCSCD北大核心
影响因子:0.761
ISSN:0253-990X
年,卷(期):2016.42(8)
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