改性大豆分离蛋白可生物降解材料的降解性研究

Study on Degradability of Modified Soy Protein Isolate Biodegradable Material

用邻苯二甲酸酐改性大豆分离蛋白(SPI)制备了SPI可生物降解材料。采用霉菌生长法、水性土壤培养液法和自然土埋法对SPI可生物降解材料的降解性能进行了表征。结果表明:SPI材料在3种降解方法中都表现出良好的降解性,其中霉菌生长法的降解率最大,水性土壤培养液法次之,自然土埋法降解率最小。

The soy protein isolate （SPI） was modified by phthalic anhydride to prepare SPI biodegradable material. The degradability of SPI biodegradable material was characterized by fungal growth method,natural soil-burial method and water cultivation soil-burial method. The results show that：SPI material exhibits excellent biodegradability for the three degradation methods,wherein the degradation rate of fungal growth is the fastest,the degradation rate of natural soil-burial is the slowest relatively.