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The effect of temperature and salinity on protein rate of purple-spotted bigeye during preservated by nitrogen- slurry ice
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Abstract
The paper shows experiments of 13 samples with three repeat times, indicating the effect of temperature and salinity in a Nitrogen-slurry ice solution on Purple-Spotted Bigeye (Priacanthus tayenus) protein rate. The result shows that the protein Quadratic model is significant with a p-value of less than 0.05. The temperature affects strongly the protein rate of the samples during preservation by the Nitrogen-slurry ice solution. The equation of protein related to temperature and salinity was Protein rate equals to -12,57 - 21,79xT + 1,15xS-4,57xTxS-6,65xTxT - 0,02xSxS (where T is Temperature, S is Salinity). The protein rate of the fish was kept at 19.9% during 07 days in storage solution with temperature of -1.5 oC and salinity of 25‰ (the fish was stored in normal ice 4 days onboard before keeping in the experiment solution). The experiment suggested that, after landing from fishing boats, the Purple-Spotted Bigeye (Priacanthus tayenus) can preserve in the Nitrogen-slurry ice of temperature range from -1.4 oC to -1.9 oC and salinity from 22‰ to 28‰ from in least 07 days to remain acceptable rate of protein.
Keywords
Nitrogen-slurry ice, Protein rate, Purple-spotted bigeye, Salinity, Temperature.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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