Bean curd with duck blood and preparation method thereof

Abstract

The invention discloses bean curd with duck blood. The bean curd with duck blood is prepared from the following raw materials in parts by weight: 400-410 parts of soybeans, 30-33 parts of red beans, 4-5 parts of duck blood, 2-3 parts of tomato sauce, 1-2 parts of radix rehmanniae preparata, 4-5 parts of caulis spatholobi, 1-2 parts of codonopsis pilosula, 2-3 parts of radix paeoniae alba, 1.6-1.8 parts of chitosan, 1.6-1.8 parts of calcium chloride and 200-210 parts of an acetic acid solution having a concentration of 0.1 percent. According to the bean curd with duck blood, soybean milk is subjected to ultrahigh pressure treatment, the hydrophobic region of soybean protein can be exposed, the content of sulfydryl of the soybean protein can be increased, and the soybean protein reacts with a coagulator to form gel, the defects of bad color and flavor, nutrition loss and other defects of foods caused by traditional heat processing can be avoided, vitamin C can be used for inhibiting lipid materials in the soybeans from being oxidized to produce peroxide which has beany flavor, and the chitosan mixed with the coagulator has a good bacterium-inhibiting effect on escherichia coli, staphylococcus aureus and mildew, ancan be used for effectively prolonging the preservation period of bean curd and nourishing blood.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to duck blood tofu and a preparation method thereof. Background technique [0002] The processing and production of tofu is mainly based on soybeans. The key technology for producing tofu from soybeans is to add coagulant to soybean milk. The quality of tofu is directly affected by the amount and application of coagulant, and the type of coagulant also directly affects the sensory evaluation of tofu type and taste. Traditional tofu coagulants are mainly brine and gypsum, which have a fast reaction speed for making tofu and are difficult to control. With the continuous improvement of production level, a large number of new composite coagulants appear, and most of the composite coagulant formulations are mixed with existing coagulants. Chitosan is a rare positively charged biological polymer compound that can be formed in nature. Chitosan has good chemical stability and has ...

AI Technical Summary

Problems solved by technology

Traditional tofu coagulants are mainly brine and gypsum, which have a fast reaction speed and are difficult to control when making tofu.