High-flavonoid apple crisp chips and preparation method thereof

The invention provides a method for preparing high-flavonoid apple crisp chips. The method comprises the following steps: 1) peeling high-flavonoid apple fruits, removing kernels and seeds, removing seed nests, and cutting the high-flavonoid apple fruits into apple chips; 2) performing anti-browning treatment on the apple chips pretreated in the step 1); 3) pre-freezing the apple chips subjected to the anti-browning treatment in the step 2); and 4) performing sublimation drying on the apple chips pre-frozen in the step 3). The high-flavonoid apple crisp chips prepared by a vacuum freeze-dryingtechnology not only can well keep the color and shape of apples, but also can reduce the loss of nutritional and health-care components in the apples. 本发明提供一种制备高类黄酮苹果脆片的方法，包括如下步骤：1)将高类黄酮苹果果实去皮、去核籽、去籽巢、切成苹果片；2)对步骤1)中预处理后的苹果片进行防褐变处理；3)将步骤2)中防褐变处理后的苹果片预冻；4)将步骤3)中预冻后的苹果片升华干燥，即可。真空冷冻干燥技术制备出的高类黄酮苹果脆片，不仅可以很好地保持苹果的色泽和形状，而且还可以减少苹果中营养保健成分的损失。