果蔬真空含浸是一种低温下将外部功能性液体含浸到果蔬组织内部的调理方法,具有加工时间短,提高功能性等优点。国内外报道研究果蔬真空含浸多采用鲜样含浸,含浸量较少。作者采用先预干燥,再真空含浸的方法,在胡萝卜片中含浸蔗糖一乳酸钙溶液,显著提高了功能性成分的含浸量;并比较了不同的干燥方式对真空含浸量的影响和对营养物质流失的影响,发现微波干燥的效果优于热风干燥。
Vacuum impregnation is a kind of technology to impregnate functional factors into fruits and vegetables in short time under low temperature. In this manuscript, the injection rate and the functional components was prominently enhanced by employing a pre-dry process before vacuum impregnation during a sucrose-calcium lactate impregnation carrot. Furthermore, it was found that the microwave pre-drying was better than that of the hot-air pre-drying, both in the mass of vacuum impregnation and in the loss of nutrients.