Preparation method of natural food drying agent
A food drying and natural food technology, applied in the fields of food preservation, food ingredients, application, etc., can solve the problems of loose structure, insufficient moisture absorption performance and water retention performance, and achieve the effects of low cost, excellent water retention capacity, and stable product quality.
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[0016] Example 1:
[0017] (1) Prepare sterile culture medium: weigh 2wt% glucose, 8wt% edible alcohol, 1wt% yeast powder, 0.5wt% xylan, 0.1wt% nano activated carbon, and the balance of water to make up to 100wt% by weight. Add 50 glass beads with a diameter of 0.1 cm per liter of culture medium. After sterilization by moist heat, ultrasonic dispersion;
[0018] (2) Vibration fermentation: Acetobacter xylinum, which can metabolize and produce bacterial cellulose, is inserted into the culture medium, cultured and fermented with vibration at 25°C and 100rpm for 6 days to obtain bacterial cellulose microspheres containing nano-activated carbon inside. Take out the microspheres and use 0.1 Soak in M NaOH solution for 1 hour, then repeatedly rinse with deionized water to neutrality, and drain the surface water;
[0019] (3) Enzyme catalysis: immerse the bacterial cellulose microspheres from which the surface water has been drained into natural ethyl acetate, then add 0.1wt% lipase Novo...
Example Embodiment
[0021] Example 2:
[0022] (1) Prepare sterile culture medium: weigh 7wt% glucose, 3wt% edible alcohol, 3wt% yeast powder, 2wt% xylan, 0.4wt% nano activated carbon, and the balance water to make up to 100wt% by weight Culture medium, add 10 glass beads with a diameter of 0.3cm per liter of culture medium, and then disperse ultrasonically after sterilization by moist heat;
[0023] (2) Vibration fermentation: Acetobacter xylinum, which can metabolize and produce bacterial cellulose, is connected to the culture medium, cultured and fermented with shaking at 30°C and 300rpm for 2 days to obtain bacterial cellulose microspheres containing nano-activated carbon inside. Take out the microspheres and use 0.1 Soak in M NaOH solution for 1 hour, then repeatedly rinse with deionized water to neutrality, and drain the surface water;
[0024] (3) Enzyme catalysis: immerse the bacterial cellulose microspheres from which the surface water has been drained into natural ethyl acetate, then add 0....
Example Embodiment
[0026] Example 3:
[0027] (1) Prepare sterile culture medium: weigh 4wt% glucose, 6wt% edible alcohol, 2wt% yeast powder, 1wt% xylan, 0.3wt% nano-activated carbon, and the balance of water to make up to 100wt% by weight Medium, 30 glass beads with a diameter of 0.2cm are added per liter of medium, and after sterilization by moist heat, ultrasonic dispersion;
[0028] (2) Vibration fermentation: Acetobacter xylinum, which can metabolize and produce bacterial cellulose, is connected to the culture medium, cultured and fermented with shaking at 28°C and 200rpm for 4 days to obtain bacterial cellulose microspheres containing nano-activated carbon inside. Take out the microspheres and use 0.1 Soak in M NaOH solution for 1 hour, then repeatedly rinse with deionized water to neutrality, and drain the surface water;
[0029] (3) Enzyme catalysis: immerse the bacterial cellulose microspheres from which the surface water has been drained into natural ethyl acetate, then add 0.1wt% lipase N...
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