Preparation method of tender bean curd

Abstract

The invention relates to the technical field of food preparation and particularly relates to a preparation method of tender bean curd. The method comprises the following specific steps: puffing soybeans to remove the skin, thus obtaining soybean kernels; dissolving sodium polyphosphate into water at the ratio of 0.2% for soaking the soybean kernels; radiating the soybean kernels all the way by using light during soaking and carrying out jordaning and filtering; and introducing soybean milk into a high-pressure agitated vessel, adding condensed pig skin gelatin to 2% gypsum water at the weight ratio of 0.4-0.5%, heating the gypsum water and fully mixing evenly, quickly blending the mixed solution into the soybean milk, centrifuging, standing and solidifying at 5-6 DEG C. The finally obtained tender bean curd is bright white in color and luster, and soft and tender in texture, has relatively good coagulability and is not easily dispersed and chipped off; heat energy utilization in the processing process is low; and the nutrients in the soybeans are fully reserved.

Description

technical field [0001] The invention relates to the technical field of food production, in particular to a production method of soft tofu. Background technique [0002] China is the hometown of soybeans. China has cultivated soybeans with a history of 5,000 years. It is also the first country to develop and produce soybean products. Soft tofu is a kind of soybean products. Soft tofu is also called southern tofu, soft tofu, and gypsum tofu. , white in color, very tender, soft tofu and other soy products are rich in protein, and tofu protein is a complete protein, not only contains 8 kinds of amino acids necessary for the human body, but also its ratio is close to the needs of the human body, the nutritional value is high, and the egg Phospholipids can remove cholesterol attached to the blood vessel wall, prevent arteriosclerosis, prevent cardiovascular disease, protect the heart, and contain a variety of minerals, supplement calcium, prevent osteoporosis caused by calcium def...

AI Technical Summary

Problems solved by technology

[0002] China is the hometown of soybeans. China has cultivated soybeans with a history of 5,000 years. It is also the first country to develop and produce soybean products. Soft tofu is a kind of soybean products. Soft tofu is also called southern tofu, soft tofu, and gypsum tofu. , white in color, very tender, soft tofu and other soy products are rich in protein, and tofu protein is a complete protein, not only contains 8 kinds of amino acids necessary for the human body, but also its ratio is close to the needs of the human body, the nutritional value is high, and the egg Phospholipids can remove cholesterol attached to the blood vessel wall, prevent arteriosclerosis, prevent cardiovascular disease, protect the heart, and contain a variety of minerals, supplement calcium, prevent osteoporosis caused by calcium deficiency, and promote bone development. The bone growth of children and the elderly is extremely beneficial. At present, the production of soft tofu mainly includes four production processes: soaking beans, pulping, boiling pulp, filtering, and coagulating. pulp, but the current soaking process is not standardized, and the time control is not precise, and the soaking time is too long, and the water consumption is large. It is solidified by adding gypsum liquid to the filter slurry, and the concentration is generally about 8%. Gypsum contains a variety of heavy metal impurities, especially arsenic, lead and other components that are extremely harmful to the human body. Adding gypsum at this high concentration for a long time It is used to make gypsum tofu, which is easy to endanger health