本实验以白蕉鲈鱼鱼骨架为原料，对鱼骨架基本营养成分进行了分析。结果表明：鱼骨架中含有大量的鱼肉（33.17%）、蛋白含量高（16.65%），脂肪含量低（3.03%），鱼骨架中的钙磷比接近2:1，易于人体吸收。肌原纤维蛋白为鱼骨架中主要蛋白（45.22%），其次是肌浆蛋白（24.61%）、碱溶性蛋白（15.55%）、碱不溶性蛋白（9.46%）和非蛋白氮（5.15%）。鱼骨架中的脂肪是一种主要以不饱和脂肪酸（USFA，69.86%）为主的优质脂肪，其中不饱和脂肪酸中单不饱和脂肪酸（MUFA，30.193%）和多不饱和脂肪酸（PUFA，30.14%）之间含量无明显差异（p>0.05）。鱼骨架中共检测出13种游离氨基酸，其中必须氨基酸5种，非必须氨基酸8种。从单个氨基酸的含量来看，含量最高的是牛磺酸（131.02 ng/μL），其次为丙氨酸（45.21 ng/μL）、甘氨酸（35.68 ng/μL）、谷氨酸（27.50 ng/μL）。综合而言，白蕉鲈鱼鱼骨架是一种具有较大开发利用价值的水产品副产物。

In this work, the basic nutrients composition of the fish skeleton of the Bai Jiao Bass were analyzed. The results showed that the fish skeleton contain of mass flesh (33.17%), high protein content (16.65%) and low fatty content (3.03%). The ratio of calcium and phosphorus was nearly 2:1, which is easy to be absorbed by human body. Myofibrillar protein was the main protein in fish skeleton (45.22%), followed by sarcoplasmic protein (24.61%), alkali-soluble protein (15.55%), alkali-insoluble protein (9.46%) and non-protein nitrogen (5.15%). The fat in fish skeleton is a kind of high-quality fat mainly composed of unsaturated fatty acids (USFA, 69.86%), among which there is no significant difference in the content of monounsaturated fatty acids (MUFA, 30.193%) and polyunsaturated fatty acids (PUFA, 30.14%) in unsaturated fatty acids (p>0.05). A total of 13 free amino acids was detected in the fish skeleton, including 5 essential amino acids and 8 non-essential amino acids. In terms of the content of individual amino acids, the highest content was taurine (131.02 ng/μL), followed by alanine (45.21 ng/μL), glycine (35.68 ng/μL), and glutamate (27.50 ng/μL). On the whole, the skeleton of Baijiao bass is a kind of by-product of aquatic products with great development value.

广东省重点领域研发计划项目（2019B020212003）；广州市科技计划项目（201803020024）；韶关市农业科技项目（韶财工[2017]82号）