摘要
为探究冰温气调状态下微环境波动(即温度波动、气体环境波动、温度气调双波动)后蓝莓品质的变化规律,以"蓝丰"蓝莓为试材,预冷处理后分别放入不同的冰温(-2℃和-1 ℃)气调(CO2:10％～14％;O2:6％～9％)环境贮藏7 d,分析蓝莓果实的最佳贮藏环境状态.在此基础上,设计3组微环境波动试验,即温度波动、气调波动、温度和气调双波动,分别波动1～6d,每次波动结束后采取相应措施进行贮藏,测定1～7d各试验组蓝莓果实的硬度、内聚性、可滴定酸含量、花青素含量、丙二醛含量.结果表明,试验组的保鲜效果更好.微环境波动试验中,蓝莓的最佳贮藏时间1d."蓝丰"蓝莓果实的最佳冰温气调环境为-1℃(CO2:10％～12％;O2:6％～9％),蓝莓果实品质与波动时长呈负相关,采用降温/降氧/双降手段虽有一定效果,但不能使蓝莓果实品质恢复至冰温气调组的最佳状态.
Abstract
In order to explore the changes of blueberry quality after microenvironment fluctuations(i.e.,temperature fluc-tuations,gas environment fluctuations,and temperature and gas fluctuations)under the state of ice temperature and gas regulation,Lanfeng blueberry was taken as the test material and pre-cooled at different ice temperature(-2℃ and-1 ℃)for air conditioning(CO2:10％-14％;O2:6％-9％)were stored in the environment for 7 days,and the optimal en-vironmental state of blueberry fruit was analyzed.On this basis,three groups of microenvironment fluctuation tests were designed,namely,temperature fluctuation,air fluctuation,temperature and air fluctuation,which fluctuated for 1aq to 6 days,respectively.After each fluctuation,corresponding measures were taken for storage.The hardness,cohesion,titra-ble acid content,anthocyanin content and malonaldehyde content of blueberry fruits in each experimental group were measured for 1 to 7 days.The results showed that the fresh-keeping effect of experimental group was better.In the mi-croenvironment fluctuation test,the optimal storage time of blueberry was 1 day.The optimal ice temperature and air conditioning environment of Lanfeng blueberry fruit was-1 ℃(CO2:10％-12％,O2:6％-9％),and there was a negative correlation between blueberry fruit quality and fluctuation time.Although cooling/oxygen lowering/double descending meth-ods had certain effects,the blueberry fruit quality could not be restored to the best state in the ice temperature and air conditioning group.
维普
万方数据