评价螺旋藻藻渣的营养成分，并测定及其膳食纤维的功能特性。以提取藻胆蛋白后的螺旋藻藻渣为原料，采用碱酸处理法获得螺旋藻藻渣不溶性膳食纤维，测定其溶胀能力、保水能力和油脂保持能力，研究了膳食纤维对胆酸钠和NO2–的吸附能力。结果表明，螺旋藻藻渣营养成分丰富，主要含54.80%蛋白质、11.20%碳水化合物和9.07%的水分等常规成分。矿物质中磷、镁、钙含量最高，分别为623.0 g/kg、1 070.0 mg/kg、19 200.0 mg/kg。螺旋藻藻渣中含有人体必需的氨基酸（赖氨酸、缬氨酸、亮氨酸和异亮氨酸等）和非必需氨基酸（精氨酸、谷氨酰胺和谷氨酸等）。螺旋藻藻渣中的不溶性膳食纤维具有较好的持水、持油和溶胀能力，对胆酸钠的吸附能力比较明显，在 pH=2的模拟人胃液环境中，对NO2–有较好吸附作用。研究结果可为螺旋藻藻渣功能性营养食品的开发和高值利用提供技术支撑。
The nutritional components of Spirulina residue were determined and evaluated. The insoluble dietary fiber was prepared by alkaline acid treatment from algae residue. The swelling capacity, water holding capacity and grease holding capacity were determined. Insoluble dietary fiber was obtained from Spirulina residue after extraction of phycobiliprotein by alkali acid treatment. Its swelling capacity, water retention capacity and oil retention capacity were measured. The adsorption capacity of dietary fiber for sodium cholate and NO2– was studied. The adsorption capacity of sodium cholic acid and NO2- by dietary fiber was researched. The results indicated that algae residue was rich in nutrients, mainly including protein, carbohydrate and water. The content of phosphorus, magnesium and calcium in minerals was the highest. Algae residue was rich in essential amino acids (lysine, valine, leucine and isoleucine) and non essential amino acids (arginine, glutamine and glutamate). The insoluble dietary fiber had a certain water holding capacity, grease holding capacity and swelling capacity, and the adsorption capacity of sodium cholic acid was relatively obvious. In the simulated human gastric fluid environment of pH=2, it had better adsorption on NO2–. This study results will provide a basis for the high value utilization of Spirulina residue.