Evaluation of muscle nutritional quality in Neolissochilus baoshanensis

YU Hongman; LI Hongtao; DAI Zhongli; LENG Yun; KONG Lingfu; WU Zhilei

doi:10.13557/j.cnki.issn1002-2813.2025.22.020

Abstract：This study aimed to investigate the muscle nutritional quality of the unique species from Yunnan,Neolissochilus baoshanensis.Wild specimens of Neolissochilus baoshanensis were collected from the Longchuanjiang River in the Irrawaddy River system,and their muscle basic nutrients,amino acid composition,and fatty acid composition were determined according to national standard methods.The results showed that the crude protein content in the muscle of the Neolissochilus baoshanensis was 17.43％,the crude fat was 0.61％,the crude ash was 1.06％,and the moisture was 80.22％.A total of 17 amino acids were detected in the experiment.Among them,the ratio of the total amount of essential amino acids to the total amount of amino acids(ΣEAA/ΣTAA)was 40.97％,and the ratio of the total amount of essential amino acids to the total amount of non-essential amino acids(ΣEAA/ΣNEAA)was 83.34％.The ratio of the total umami amino acids to the total amino acids(Σ DAA/Σ TAA)was 38.30％.The first limiting amino acid was methionine+cysteine,and the essential amino acid index(EAAI)was 88.58.A total of four saturated fatty acids(SFA),two monounsaturated fatty acids(MUFA),and two polyunsaturated fatty acids(PUFA)were detected in the experiment.The ratio of the total amount of unsaturated fatty acids to the total amount of saturated fatty acids(ΣUFA/ΣSFA)was 2.44.The ΣUFA is 70.90％(mainly oleic acid at 42.73％and linoleic acid at 21.90％).The study indicates that Neolissochilus baoshanensis has advantages such as high protein,low fat and unique flavor,providing a reference for the conservation of germplasm resources and precise breeding of this species.