Abstract
Used the electrostatic field combined with controlled freezing-point storage technology to preserve the Litopenaeus vannamei, and examined the effects of different electrostatic field(1.5,2.5,3.5 kV)combined with controlled freezing-point storage(-1 ℃±1 ℃)on quality of Litopenaeus vannamei. Some quality index changes were compared in Polyphenol Oxidase (PPO) relative enzyme activity, whiteness, sensory, total bacterial counts, TVB-N, pH, drip loss, K value and rheology property. The results showed that electrostatic field inhibited the PPO relative enzyme activity, the sensory and whiteness significantly better than the controlled freezing-point storage. In the late period of storage, the total bacterial counts was inhibited by electrostatic field and TVB-N, K value was all slowed down to different degrees. The drip loss rate remained at a low level. Electrostatic field can significantly delayed muscle protein degradation through the test of rheological properties. In general, the 2.5 kV electrostatic field has a better preservation effect, which can extend the shelf life of the Litopenaeus vannamei to 8 days.
Publication Date
12-28-2018
First Page
101
Last Page
107
DOI
10.13652/j.issn.1003-5788.2018.12.022
Recommended Citation
Weiwen, DUAN; Qinguo, QUAN; Xueqin, ZHANG; Zewei, ZHANG; Ming, CHEN; Xuege, ZENG; Shucheng, LIU; and Hongwu, JI
(2018)
"Effect of electrostatic field combind with controlled freezing-point storage technology on the quality of Litopenaeus vannamei in storage period,"
Food and Machinery: Vol. 34:
Iss.
12, Article 22.
DOI: 10.13652/j.issn.1003-5788.2018.12.022
Available at:
https://www.ifoodmm.cn/journal/vol34/iss12/22
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