中国农业大学学报2012，Vol.17Issue(2)：130-133,4.
冷藏条件下鳙鱼阻抗特性与鲜度的关系
Effect of freshness of stored bighead carp （Aristichthys nobilis） on its impedance characteristics
摘要
Abstract
The effect of freshness on change ratio of impedance（Q value） of bighead carp stored at temperature of 3 ℃ was investigated.The indexes of freshness,K value,total volatile basic nitrogen（w（TVB-N）） and total aerobic count,as well as sensory assessment were determined based on the investigations.The correlation models were developed via analyzing the correlation between the freshness indexes and sensory assessment.The results indicated that the sensory assessment has exceeded the acceptable limit with the score of 14 on the twelfth day,while the K value,w（TVB-N） and total aerobic count increased to 74.1%,16.1 mg/100g and 1.30×105 CFU/g,respectively,and the Q value declined to 12.7%.The correlation coefficients are 0.993,0.971,0.977 and 0.981,respectively,indicating significant linear relations（P〈0.01） between the Q value and the K value,w（TVB-N）,total aerobic count and sensory scores.Therefore,one can use Q value as a fast nondestructive method to estimate the freshness of bighead carp fillets under 3 ℃ storage.关键词
鳙鱼/冷藏/鲜度/阻抗变化率/相关性Key words
bighead carp/chilling storage/freshness/impedance change ratio/correlation分类
农业科技引用本文复制引用
朱思潮,洪惠,罗永康,沈慧星,余健..冷藏条件下鳙鱼阻抗特性与鲜度的关系[J].中国农业大学学报,2012,17(2):130-133,4.基金项目
现代农业产业技术体系建设专项资金资助 （）
国家自然科学基金项目 （）
