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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.

Active Publication Date: 2016-01-13
易轩包装制品(连云港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve such problems, some natural edible desiccants have been developed, such as starch desiccants, etc., but these have the problems of loose structure, insufficient hygroscopicity and water retention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Preparation of sterile medium: by weight, weigh 2wt% glucose, 8wt% edible alcohol, 1wt% yeast powder, 0.5wt% xylan, 0.1wt% nano-activated carbon, and supplement the remaining water to 100wt% To form a culture medium, add 50 glass beads with a diameter of 0.1cm to each liter of culture medium, after moist heat sterilization, ultrasonically disperse;

[0018] (2) Shaking fermentation: Acetobacter xylinum that can metabolize and produce bacterial cellulose was inserted into the culture medium, cultured and fermented with shaking at 25°C and 100rpm for 6 days, and bacterial cellulose microspheres containing nano-activated carbon were obtained. The microspheres were taken out and washed with 0.1 Soak in NaOH solution of M for 1 hour, then repeatedly rinse with deionized water until neutral, and drain off the surface moisture;

[0019] (3) Enzyme catalysis: immerse bacterial cellulose microspheres drained of surface moisture into natural ethyl acetate, then add 0.1 wt% li...

Embodiment 2

[0022] (1) Preparation of sterile medium: by weight, weigh 7wt% glucose, 3wt% edible alcohol, 3wt% yeast powder, 2wt% xylan, 0.4wt% nano-activated carbon, and supplement the remaining water to 100wt%. For the culture medium, add 10 glass beads with a diameter of 0.3cm to each liter of culture medium, and disperse it ultrasonically after moist heat sterilization;

[0023] (2) Shaking fermentation: Acetobacter xylinum that can metabolize and produce bacterial cellulose was added to the culture medium, cultured and fermented with shaking at 30°C and 300rpm for 2 days, and bacterial cellulose microspheres containing nano-activated carbon were obtained. The microspheres were taken out and washed with 0.1 Soak in NaOH solution of M for 1 hour, then repeatedly rinse with deionized water until neutral, and drain off the surface moisture;

[0024] (3) Enzyme catalysis: immerse bacterial cellulose microspheres drained of surface moisture into natural ethyl acetate, then add 0.1wt% lipas...

Embodiment 3

[0027] (1) Preparation of sterile medium: by weight, weigh 4wt% glucose, 6wt% edible alcohol, 2wt% yeast powder, 1wt% xylan, 0.3wt% nano activated carbon, and add the remaining water to 100wt% to prepare For the culture medium, add 30 glass beads with a diameter of 0.2cm to each liter of culture medium, and disperse it ultrasonically after moist heat sterilization;

[0028] (2) Shaking fermentation: Acetobacter xylinum, which can metabolize and produce bacterial cellulose, was added to the medium, cultured and fermented with shaking at 28°C and 200rpm for 4 days, and bacterial cellulose microspheres containing nano-activated carbon were obtained. The microspheres were taken out and washed with 0.1 Soak in NaOH solution of M for 1 hour, then repeatedly rinse with deionized water until neutral, and drain off the surface moisture;

[0029] (3) Enzyme catalysis: immerse bacterial cellulose microspheres drained of surface moisture into natural ethyl acetate, then add 0.1 wt% lipase...

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Abstract

The invention discloses a preparation method of a natural food drying agent. The drying agent with high quality is prepared by using bacterial cellulose obtained from microbial fermentation and active carbon nanoparticles as main raw materials, and by hydrophobic modification of lipase. The food drying agent prepared by the method provided in the invention is granular, non-toxic and odorless. The drying agent prepared in the invention has very strong moisture absorption performance, and the weight of water absorbed by the drying agent can reach more than 5 times the weight of the drying agent per se; in addition, the active carbon nanoparticles are wrapped in nanopores of the bacterial celluloses, in combined with the hydrophobic modification of the lipase, so that the prepared drying agent has excellent water holding capability, and can be applied to package of various foods.

Description

technical field [0001] The invention belongs to the field of desiccants, in particular to a preparation method of a desiccant for natural food. Background technique [0002] Food desiccant is an important protective agent in the process of food packaging, especially for foods with moisture absorption. Most of the currently used food desiccants are made of silica gel, montmorillonite and quicklime, which are environmentally unfriendly and easy to eat. hazards etc. In order to solve such problems, some natural edible desiccants have been developed, such as starch-based desiccants, but these have problems of loose structure, insufficient hygroscopicity and water retention. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing a natural desiccant for food. [0004] In order to achieve the above object, the preparation method of the natural food desiccant involved in the pres...

Claims

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Application Information

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IPC IPC(8): A23L3/3562
CPCA23L3/3562A23V2002/00A23V2250/5108
Inventor 陈爱梅
Owner 易轩包装制品(连云港)有限公司
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