鲢鱼骨中油脂提取方法的研究

Study on extraction method of silver carp bone oil

目的研究鲢鱼骨中鱼油的提取最佳工艺。方法对比高温蒸煮、热风干燥、冷冻干燥不同处理方式,将鲢鱼骨粉碎后,以提取率为指标,分别研究索氏提取、稀碱水解、酶法水解三种鱼油的提取方式,幵对稀碱水解法进行正交实验方案设计。结果综合考虑,采用稀碱水解法提取具有较高的应用价值。稀碱水解法的最优条件为温度85℃、pH10.0、料液比1:2、时间40 min,鲢鱼骨油提取率为39.83%。结论采用热风干燥法对鱼骨进行前处理,稀碱水解法提取鲢鱼骨中脂肪提取率最高。

Objective the optimum extraction process of silver carp bone oilextraction method. Methods preprocess including of cooking at a high temperature, hot air drying and freeze-drying before smashed was compared. Based on the extraction rate, the soxhlet extraction, dilute alkalis hydrolysis and enzymatic hydrolysis were used to extract oil, then the orthogonal experiment design used in dilute alkalis hydrolysis method. Results Integrated system to consider the various factors the dilute alkalis hydrolysis method has the better application value than others. The optimized condition of dilute alkalis hydrolysis were as follow: temperature of 85 ℃, pH 10.0, solid-liquid ratio 2:1 and time of 40 min, and the extraction rate of oil from silver carp bone was 39.83%. Conclusion The fat extraction rate of silver carp bone is highest byThe fish bone is pretreated by hot air drying method, and the fat in the bone of the carp is extracted by the dilute alkali hydrolysis method, and the extraction rate is the highest. dilute alkali hydrolysis method, which has high applicated value.