两种保鲜剂处理对鲜切冬瓜保鲜效果的影响

被引:7
作者
刘程惠 [1 ,2 ]
马涛 [1 ]
胡文忠 [2 ]
白露露 [2 ]
王艳颖 [2 ]
机构
[1] 沈阳农业大学食品学院
[2] 大连民族大学生命科学学院
关键词
冬瓜; 鲜切; 保鲜剂;
D O I
10.13386/j.issn1002-0306.2015.15.056
中图分类号
TS255.3 [果蔬加工与保藏];
学科分类号
摘要
为了研究两种保鲜剂对鲜切冬瓜的保鲜效果,测定了0.1%柠檬酸、0.5%VC处理后的鲜切冬瓜在4℃贮藏条件下亮度、硬度、相对电导率、MDA、总酚、PPO、POD活性的变化,以及贮藏过程中微生物的动态变化。结果表明:采用两种保鲜剂处理鲜切冬瓜均在一定程度上减缓了亮度L*和硬度的下降速度;延缓了MDA、相对电导率和总酚含量的升高;抑制了PPO、POD的活性,从而减轻了酶促褐变的产生;抑制了鲜切冬瓜中微生物的增长繁殖,延缓了产品品质的下降。比较得到:0.1%柠檬酸处理延缓鲜切冬瓜褐变的效果好于0.5%VC,而0.5%VC处理抑制微生物生长的保鲜效果好于0.1%柠檬酸。两种保鲜剂处理均能延长鲜切冬瓜的保质期。
引用
收藏
页码:307 / 311
页数:5
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