电子鼻检测虾新鲜度的研究

被引:31
作者
柴春祥
凌云
机构
[1] 天津商业大学生物技术与食品科学学院
[2] 天津市食品生物技术重点实验室
基金
天津市自然科学基金;
关键词
电子鼻; 虾; 检测;
D O I
10.13684/j.cnki.spkj.2010.02.070
中图分类号
TP274 [数据处理、数据处理系统];
学科分类号
0804 ; 080401 ; 080402 ; 081002 ; 0835 ;
摘要
用电子鼻技术检测了虾在不同实验条件下挥发性成分的变化,考察了保存温度和时间对虾挥发性成分的影响。通过对在4℃保存5d、-10℃保存20d、-15℃保存60d的虾样品进行电子鼻检测得出:电子鼻输出信号随采集时间的延长而增加,对输出信号与采集时间的关系进行数据分析,发现电子鼻输出信号与采集时间呈线性关系,可以用其斜率表示各个样品的特征值;电子鼻输出信号的特征值随虾样品保存温度的升高而增加,也随保存时间的延长而增加。初步实验研究表明,在不同实验条件下,虾挥发性成分发生变化,电子鼻可检测到这些变化,可尝试用电子鼻技术评价虾新鲜度的变化。
引用
收藏
页码:246 / 249
页数:4
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