Deep processing technology of sweet potato soil

Sweet potato has a large planting area in all parts of our country, and the annual output is very considerable, and it contains a large number of polysaccharides and mucus proteins needed by the human body, which can improve human immunity and prevent arteriosclerosis. It is very popular for the treatment of diabetes and so on. However, in daily life, people often sell sweet potatoes directly on the market, which is both inconvenient to transport and cheap. If the sweet potato is processed into food for sale, its added value can be greatly increased and better economic benefits can be obtained.

1. Sweet potato chips

Using fresh red potato chips as raw materials, sweet potato chips with good color, aroma and taste can be obtained by anti-browning and anti-color, egg coat, oil film and microwave heating.

2. Preserved sweet potato

Wash, peel and cut sweet potatoes, then immerse them in water or sugar solution for color protection, and harden them with calcium chloride. In order to make the sugar solution fully penetrate into the preserved sweet potato, the process of fine cooking for three times was adopted, then drained and dried.

3. Sweet potato jam

The selected sweet potato is peeled and washed, cut into small slices and ground with water, then poured into a human pot, heated at 112 ℃-130 ℃ for 20 minutes, and then heated to 137 ℃, to get a concentrated slurry, the concentrated slurry is filtered with fine gauze and added with appropriate amount of sugar and other excipients or water-soluble protein, and then heated and concentrated to the paste body.

Fourth, sweet potato Prawn Crackers

Take 70% 100% sweet potato refined white starch as the main material, put the rubbed billet into a pressure cooker and cook for 35 minutes, so that the starch is fully gelatinized, in order to increase the adhesion between the blanks, and cool quickly below o ℃, so that it can be cut into slices without sticking hands. The billet was cut into thin slices with a thickness of less than 2 mm, and then dried at 50 ℃ for at least 6 hours, so that the water content of the billet reached about 10%. After frying at 190 ℃ oil temperature for 20 seconds, a puffed, crisp and sweet finished product could be obtained.

5. Sweet potato cake

Mix 5 kg sweet potato flour with 760 grams of flour, 750 grams of sugar, 19 grams of soda and an appropriate amount of warm water. After fermentation, steam in a steamer and cool to a warm degree. Coat the surface with sesame oil, sprinkle some green red shreds and sesame seeds, cut into pieces and serve.