Selection of raw materials: corn residue can be used directly. Corn residue should be peeled and germinated, washed and screened. For large-scale production, it is necessary to select corn residue with neat particle shape for processing. Soaking: soak the corn residue in boiling water for 1~2 hours, and control the water content of the soaked corn residue within 42%.
Cooking: Rinse the soaked corn residue with clear water for 3-5 times, cook in an autoclave for about 1 hour, and then naturally decompress. After cooling to normal temperature for 3~4 hours, corn residue particles do not adhere to each other and are in a loose state. The corn residue in this state has a neat shape after tabletting and will not stick to the drum. Tablet pressing: the cooled corn residue is directly tablet pressed on a tablet press. The moisture content of corn residue should be controlled between 35% and 38% before entering the machine. When tabletting, the roller distance is about 0.3~0.5 mm. Drying: Put the pressed cornflakes into a drying oven at about 200℃, and the baking time varies according to the thickness of the tablets. After drying, it can be sold in bags.
Nutrition and production technology, technology and equipment of cereal breakfast cornflakes
First, the nutrition of corn
Corn is an annual gramineous plant, also known as corn, cob and maize, which is the staple food in some areas. Corn is a good health care product in coarse grains, which is quite beneficial to human health. Nicotinic acid and other components in corn have the characteristics of stimulating gastrointestinal peristalsis and accelerating fecal excretion, and can prevent and treat constipation, enteritis and intestinal cancer.
Breakfast cornflakes are a kind of food with corn flour as the main raw material and mixed with sugar, vitamins and minerals. After adding a certain amount of water, they are fully kneaded, steamed, shaped, tabletted and baked to make suitable slices. In modern processing, a twin-screw extruder is usually used to fully knead, cook and cut the corn flour mixture after adding water. Corn flakes are a cereal breakfast food, usually eaten with milk.