不同干燥方式的东亚飞蝗蛋白质营养特性、提取及其组成的研究

The Study of Protein Nutritional Quality, Extraction and Constitution of Locusta Migratoria Manilensis in Different Drying Methods

为探索东亚飞蝗作为保健食品的利用价值,试验在自然干燥和高温干燥条件下,对东亚飞蝗进行了蛋白质提取和组成、含量测定以及氨基酸组成分析。结果表明,高温干燥条件下蛋白质含量普遍高于自然干燥;采用1.5%Na OH提取4.5 h时,东亚飞蝗蛋白质提取效率最高,达到50.3%;蛋白质由18种氨基酸组成;通过SDS聚丙烯酰胺凝胶电泳法可得到10条清晰的条带,说明东亚飞蝗含有10种蛋白质。结果提示,东亚飞蝗富含高质量的蛋白质,作为人类保健食品或高端蛋白都是非常优质的蛋白源,具有广阔的开发前景。

In order to explore the use values of Locusta migratoria manilensis as health food, in the condition of natural drying or high-temperature drying, analysis of protein extraction and composition, the determination of protein content and analysis of amino acid composition were made. The results showed that the protein content under high temperature drying was higher than its under the natural drying. The efficiency of extracting protein was the highest by 1.5% Na OH for 4.5 h, and the extraction rate reached 50.3%. Locusta migratoria manilensis protein consisted of 18 amino acids. Ten clear bands can be got through using SDS-PAGE, it showed that the Locusta migratoria manilensis contained 10 kinds of protein. Based on the above results, we concluded that the Locusta migratoria manilensis can provide very good source of protein as human health food or premium protein, and it has wide developing prospects.