机构地区: 华南理工大学食品与生物工程学院
出 处: 《化学工程》 2002年第4期45-48,55,共5页
摘 要: 采用In Vitro消化模型模拟人体消化道环境 ,对不同交联度 (DC)的三氯氧磷淀粉 (DC =3.70× 10 -5至 2 .2 7×10 -2 )的消化性能进行了研究 ;同时用微生素酶对三氯氧磷交联木薯淀粉进行生物降解并测定各个样品的抗酶解淀粉 (RS)含量。三氯氧磷交联变性处理对木薯淀粉的消化速度和生物降解程度的影响随交联度的不同而不同。高交联特别是使淀粉达到完全非晶化时对淀粉的消化速度和生物降解程度影响更大。 The enzymatic digestibility and resistant starch content of native and cross-linked tapioca starch were investigated. Its average digestion rate and biodegradation degree varied with the degree of cross linking. High cross-linking reaction with phosphorus oxychloride especially when it was resulted in non-crystallization of starch granules had obvious effect on digestibility and biodegradability of tapioca starch.