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中国精品科技期刊2020
唐梦, 岑剑伟, 李来好, 杨贤庆, 魏涯, 郝淑贤, 黄卉. 高压静电场解冻对冻罗非鱼片品质的影响[J]. 食品工业科技, 2017, (13): 1-6. DOI: 10.13386/j.issn1002-0306.2017.13.001
引用本文: 唐梦, 岑剑伟, 李来好, 杨贤庆, 魏涯, 郝淑贤, 黄卉. 高压静电场解冻对冻罗非鱼片品质的影响[J]. 食品工业科技, 2017, (13): 1-6. DOI: 10.13386/j.issn1002-0306.2017.13.001
TANG Meng, CEN Jian-wei, LI Lai-hao, YANG Xian-qing, WEI Ya, HAO Shu-xian, HUANG Hui. Impact of high voltage electric field thawing on the quality of frozen tilapia fillet[J]. Science and Technology of Food Industry, 2017, (13): 1-6. DOI: 10.13386/j.issn1002-0306.2017.13.001
Citation: TANG Meng, CEN Jian-wei, LI Lai-hao, YANG Xian-qing, WEI Ya, HAO Shu-xian, HUANG Hui. Impact of high voltage electric field thawing on the quality of frozen tilapia fillet[J]. Science and Technology of Food Industry, 2017, (13): 1-6. DOI: 10.13386/j.issn1002-0306.2017.13.001

高压静电场解冻对冻罗非鱼片品质的影响

Impact of high voltage electric field thawing on the quality of frozen tilapia fillet

  • 摘要: 本文以冻罗非鱼片为研究对象,分析了不同高压静电场(0、1.8、3.8 k V)、不同解冻温度(25、15、5℃)条件下解冻,其解冻曲线、解冻时间和解冻速率的变化情况;并以解冻损失率、菌落总数、感官品质、色差值、总挥发性盐基氮(TVB-N)、脂质氧化(TBA)等为衡量指标,研究了高压静电场解冻对罗非鱼片品质指标变化影响。结果显示,对各解冻温度组,3.8 k V高压静电场解冻速率更快,解冻时间更短,在5℃时,3.8 k V高压静电场解冻速率是对照组速率的1.59倍;高压静电场解冻后鱼片TVB-N值和菌落总数都显著低于对照组,15℃时,3.8 k V高压静电场解冻候的菌落总数为4.29 log CFU/g显著低于对照组的4.67 log CFU/g(p<0.05);总体上高压静电场解冻不仅可以加速冻罗非鱼片的解冻,而且能更好地保持鱼肉的品质,从解冻速率和品质指标综合考虑,15℃、3.8 k V高压静电场解冻是最佳的选择。 

     

    Abstract: The frozen tilapia fillets were adopted as the raw material, the thawing curve, the thawing time and thawing rate were analyzed under the conditions of different high voltage electrostatic fields ( HEVF) ( 0, 1.8, 3.8 k V) and different thawing temperatures ( 25, 15, 5 ℃) .Loss rate of thawing, colony, sensory quality, total color difference value, total volatile base ( TVB-N) and lipid oxidation of nitrogen ( associates) were used as indicators of quality. The results showed that thawing under 3.8 k V HVEF was faster and the thawing time was shorter for each thawing temperature group.At 5 ℃, the rate of 3.8 k V high voltage electrostatic field was 1.59 times that of the control group.The TVB-N value and the total number of colonies were significantly lower than control group.At 15 ℃, the total number of colonies at 3.8 k V high voltage electrostatic field was 4.29 log CFU/g, which was significantly lower than control group ( 4.67 log CFU/g ( p < 0.05) . In general, the thawing of high-voltage electrostatic field can not only accelerate the thawing of frozen tilapia fillets, but also better keep the quality of fish. From the thaw rate and quality indicators, 15 ℃, 3.8 k V HVEF thawing is the best choice.

     

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