Preparation method of healthy bean curd

Abstract

The invention discloses a preparation method of healthy bean curd. The preparation method comprises the following steps of weighing chitosan powder, adding into an acetate solution, and adding triethyl citrate and polysorbate-80, so as to obtain an inner oil-phase solution; adding span-80 into light-weight liquid paraffin, so as to obtain an outer oil-phase solution; dropwise adding the inner oil-phase solution into the outer oil-phase solution, so as to obtain chitosan microspheres; adding the chitosan microspheres into a glutamine transaminase solution, so as to obtain immobilized enzyme of the chitosan; heating fresh soybean milk to boil, adding the immobilized enzyme of the chitosan, uniformly stirring, and pressing, so as to obtain the bean curd. The preparation method has the advantages that the glutamine transaminase is used as a bean curd coagulant, so that the problem of influence to the health of human body caused by using brine or gypsum as the coagulant in the traditional bean curd technology is solved; by using the chitosan microsphere coating type, the catalyzing rate of the glutamine transaminase is controlled, the produced bean curd is ecological and health, and the water maintaining property and jelly strength of the bean curd are certainly improved.

Description

technical field [0001] The invention belongs to the technical field of food processing, in particular to a method for preparing healthy tofu. Background technique [0002] Domestic traditional tofu coagulants are mainly brine and gypsum. Brine is made from brine after production and processing to improve its purity. Brine is a by-product of sea salt production and processing, and its main component is magnesium chloride. The brine production process of bean curd has the disadvantages of fast reaction speed and difficult control. [0003] The main component of gypsum is calcium sulfate. Due to the different content of crystal water, it is divided into raw gypsum and plaster of paris. When making tofu, plaster of paris is mostly used for production. Plaster of paris reacts slowly, which is beneficial to production control. Control brings a certain degree of difficulty. In production, the solubility of gypsum is poor. Before making the slurry, the gypsum should be made into p...

AI Technical Summary

Problems solved by technology

[0004] Transglutaminase, also known as transglutaminase (TGase), is a monomeric protein with an active center and a molecular weight of about 38,000 composed of 331 amino groups, which can catalyze intramolecular and intermolecular covalent crosslinking of protein polypeptides , so as to improve the structure and function of protein. In recent years, the application of transglutaminase in tofu coagulant has gradually been paid attention to. However, the reaction rate of transglutaminase itself is blocky and difficult to control. There are many problems in actual production.