Production method of dried sweet potatoes

Abstract

The invention discloses a production method of dried sweet potatoes. The production method comprises the following steps: selecting smooth, complete and healthy sweet potatoes with high sugar, peeling the sweet potatoes with a stainless steel cutter, and cutting the sweet potatoes into strips in a length of 3cm to 4cm; putting the sweet potato strips into a solution containing 0.2 percent of calcium chloride and 0.4 percent of sodium hydrogen sulfite, boiling for 10 to 20 minutes, taking out the sweet potato strips, putting into clean water, and washing for 6 to 8 h; boiling clean water in a hot pot, gradually adding white granulated sugar into the clean water until the sugar degree is 35 percent, adding 0.2 percent of citric acid into the clean water, adding the washed sweet potato strips, collectively boiling the sweet potato strips and the syrup for 20 to 30 minutes; pouring the sweet potato strips and the syrup into a storage cylinder, immersing for 48h until the sweet potato strips are transparent; taking out the sweet potato strips, uniformly placing the sweet potato strips in a baking tray, finally placing the baking tray into a baking oven, setting the temperature of the baking oven at 60 to 70 DEG C, drying for 12h, and when the sweet potatoes are not sticky to hands, bagging the sweet potatoes strips, thus obtaining the dried sweet potatoes. The dried sweet potatoes prepared by the method are good in flexibility and good in both taste and color.

Description

technical field [0001] The invention relates to a method for preparing preserved sweet potato, which is applied in the technical field of sweet potato reprocessing. Background technique [0002] Sweet potatoes are rich in nutrients necessary for the human body such as starch, vitamins, and cellulose, as well as mineral elements such as magnesium, phosphorus, and calcium, and linoleic acid. These substances can maintain blood vessel elasticity and have high nutritional value; Preserved sweet potato has unique toughness and mouthfeel and is deeply liked by people. However, the production process of preserved sweet potato on the market is relatively traditional, and the taste and toughness of preserved sweet potato often fail to achieve the desired effect. Contents of the invention [0003] In order to solve the above problems, the invention discloses a method for making preserved sweet potato, which has the advantages of high efficiency and good product quality. [0004] Th...

AI Technical Summary

Problems solved by technology

[0002] Sweet potatoes are rich in nutrients necessary for the human body such as starch, vitamins, and cellulose, as well as mineral elements such as magnesium, phosphorus, and calcium, and linoleic acid. These substances can maintain blood vessel elasticity and have high nutritional value; Preserved sweet potato has unique toughness and taste, which is deeply loved by people. However, the production process of preserved sweet potato in the market is relatively traditional, and the taste and toughness of preserved sweet potato often fail to achieve the expected effect.