Abstract:Morphological index and COⅠgene sequencing for species verification in wild Chinese minnow Rhynchocypris oxycephalus in Guanshan Geopark, Henan Province, and the nutritional composition and quality of Chinese minnow was evaluated by the analysis of conventional nutrients method and gas chromatography analysis method. The results showed that there were moisture of (79.59±2.92)%, crude protein of (16.62±2.73)%, crude fat of (1.15±0.45)%, ash of (0.93±0.05)%, pH of 6.91±0.16 and dressing rate of (61.50±3.35)%. A total of 17 kinds of amino acids were found in the muscle of Chinese minnow, with essential amino acid index (EAAI) of 96.24, the amino acid score (ASS) standard close to or greater than 1, the chemical score (CS) standard greater than 0.5, and the lysine content of 705 mg/g, which was 2.07 times as that as the FAO/WHO score and 1.60 times as that as the whole egg protein mode. There were 11 kinds of fatty acids in dorsal muscle, abdominal muscle, liver, intestine, brain, kidney and spleen of Chinese minnow. The content of EPA+DHA was 18.07% and PUFA 39.21% in muscle. The findings indicate that Chinese minnow in Henan Province is high in protein and PUFA (especially EPA and DHA), which can be used as high quality food source.
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