The invention belongs to the technical field of grain and oil
crop processing, and relates to a
cyperus esculentus peeling method, which comprises: (1) carrying out heat treatment on
cyperus esculentus by using hot water or
water vapor; and (2) carrying out alkali liquor soaking treatment on the
cyperus esculentus subjected to heat treatment. According to the method disclosed by the invention, through the step of adding hot water or
water vapor to treat the cyperus esculentus,
wax on the epidermis of the cyperus esculentus can be softened, a
wax barrier can be destroyed, alkali liquor can permeate into the epidermis more easily and can play a role more efficiently, and the loosening efficiency of the epidermis of the cyperus esculentus is improved; after the cyperus esculentus is subjected to subsequent treatment of alkali liquor soaking, the technical effect of almost 100% peeling can be achieved; the mandulapalka peeling
machine is suitable for mandulapalka of different producing areas and varieties, is not influenced by the sizes and shapes of tubers, and can realize the effect of completely peeling the outer skins of the mandulapalka in batches; the peeled cyperus esculentus is treated by a food-grade
citric acid solution, so that the color and
flavor of the cyperus esculentus are stabilized.