Nutrient composition analysis and quality evaluation system construction of Litopenaeus vannamei from different aquaculture water environments
2025
Liu Li | Yali Yu | Yingchun Mu | Jinhua Xu | Zhen Yang | Xiaorong Lu | Xinfeng Zhang | Huiwu Sun | Lu Qiao
Litopenaeus vannamei was one of the shrimp varieties with the highest output at present in China. In this study, nutrition indexes including moisture, ash, protein, fat, amino acid and fatty acid of Litopenaeus vannamei from seawater, saline-alkali water and freshwater were determined and compared. The comprehensive evaluation system of nutrition quality was established by multivariate statistical methods. The results showed that there were significant differences in the nutrition composition of Litopenaeus vannamei from three aquaculture water environments (p < 0.05). The comprehensive evaluation model of nutrition quality for Litopenaeus vannamei was established as Y=0.016X1−0.015X2+0.033X3+0.022X4+0.030X5+0.028X6+0.579, among which X1 to X6 were represented protein, ash, essential amino acids, semi-essential amino acids, monounsaturated fatty acids and ω-6 unsaturated fatty acids, respectively. And a 5-level comprehensive nutrition quality evaluation rating standard was created. This study provided the technical reference for scientific evaluation and classification of Litopenaeus vannamei and other shrimp aquatic products.
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