Preparation method of safe granular food drying agent

A dry and granular technology for food, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve problems such as limited adsorption capacity, human hazards, and unfriendly environment, and achieve high moisture absorption rate, strong adsorption capacity, The effect of preventing moisture and oxidation

Active Publication Date: 2017-01-18
苏州博展干燥剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a safe granular food desiccant in view of the current desiccant's low moisture absorption rate, limited adsorption capacity, unfriendly environment, and harm to the human body after ingestion. The preparation method, the method uses fresh plantain taro massive rhizomes as raw materials to make a slurry, then filters the slurry, washes and suctions the obtained filtrate to obtain coarse starch, then washes and dries the filter residue to obtain plantain crude fiber, and then uses the above-mentioned crude starch Prepare canna starch as a raw material, enzymolyze it with α-amylase to obtain canna starch enzymatic emulsion, finally crush and sieve the above canna crude fiber and mix it with microsphere silica gel in the enzymatic emulsion of canna starch Stir and mix, and coat a layer of starch fiber film on the surface of the microsphere silica gel to obtain a safe granular food desiccant. The preparation method of the present invention is simple, and the prepared food desiccant has good hygroscopicity, high moisture absorption rate, and better hygroscopicity. Great improvement, and the present invention uses natural plant fiber as the hygroscopic carrier, which can be completely degraded naturally, is an environmentally friendly desiccant, has high practical application value and broad market prospects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First weigh 8 kg of fresh plantain taro massive rhizomes, wash them 3 times with deionized water, then add them to a beater, add 1L of deionized water to pulverize and make pulp, collect the slurry, and filter the slurry with 60 mesh gauze to obtain filtrate and filter residue , let the filtrate stand for 1 hour, remove the supernatant, then add 1L of deionized water, stir evenly at 300r / min and let it stand, repeat the above washing operation twice, and then filter under reduced pressure to obtain coarse starch, and filter the residue with deionized After washing twice with water, put it in a drying oven, and dry it at 105°C to constant weight to obtain the crude fiber of plantain taro, which is set aside; then weigh 1.0 kg of the above-mentioned crude starch and add it to 10 L of deionized water, and stir and mix it evenly at 300 r / min to obtain Mixed solution, and adjust the pH of the mixed solution to 9.5 with a mass fraction of 10% sodium hydroxide solution, then he...

example 2

[0020]First take by weighing 9kg fresh plantain taro massive rhizomes, wash 4 times with deionized water, then add it in the beater, add 1.5L deionized water to pulverize and make pulp, collect the slurry, and filter the slurry with 60 mesh gauze to obtain the filtrate and Filter the residue, let the filtrate stand for 1.5h, remove the supernatant, then add 1.5L deionized water, stir evenly at 350r / min and let it stand, repeat the above washing operation 3 times, then obtain coarse starch by suction filtration under reduced pressure, and filter the residue Wash twice with deionized water, place in a drying oven, and dry at 108°C to constant weight to obtain crude fiber of canna taro, which is set aside; then weigh 1.1kg of the above crude starch and add it to 11L of deionized water, and stir at 400r / min Mix evenly to obtain a mixed solution, and adjust the pH of the mixed solution to 9.8 with a mass fraction of 10% sodium hydroxide solution, then heat to 38°C, keep the temperat...

example 3

[0023] First weigh 10 kg of fresh plantain taro massive rhizomes, wash them 5 times with deionized water, then add them to a beater, add 2L of deionized water to pulverize and make pulp, collect the slurry, and filter the slurry with 60 mesh gauze to obtain filtrate and filter residue , let the filtrate stand for 2 hours, remove the supernatant, then add 2L of deionized water, stir evenly at 400r / min and then let it stand, repeat the above washing operation 4 times, then obtain coarse starch by suction filtration under reduced pressure, and filter the residue with deionized After washing with water for 3 times, put it in a drying oven, and dry it at 110°C to a constant weight to obtain the crude fiber of plantain taro, which is set aside; then weigh 1.2kg of the above-mentioned crude starch and add it to 12L of deionized water, and stir and mix it evenly at 500r / min to obtain Mixed solution, and adjust the pH of the mixed solution to 10.0 with a mass fraction of 10% sodium hydr...

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Abstract

The invention discloses a preparation method of a safe granular food drying agent, and belongs to the technical field of packing material preparation. The preparation method comprises the steps that pulp liquid is prepared by taking fresh edulis canna tuberous rhizomes as a raw material and then filtered, the obtained filtrate is washed and subjected to suction filtration to obtain crude starch, filter residues are washed and dried to obtain edulis canna crude fibers, edulis canna starch is prepared by taking the crude starch as a raw material, enzymolysis treatment is conducted on the edulis canna starch with alpha-amylase to obtain edulis canna starch enzymolysis emulsion, the edulis canna crude fibers are crushed and screened and then stirred and mixed with micro-bead silica gel in the edulis canna starch enzymolysis emulsion, the surface of the micro-bead silica gel is coated with a layer of starch fiber film, and then the safe granular food drying agent is obtained. The preparation method is simple, and the moisture adsorption rate of the prepared food drying agent is greatly increased; in addition, the natural plant fibers are taken as a moisture adsorption carrier, and therefore the food drying agent can be fully and naturally degraded, belongs to an environment-friendly drying agent and achieves the high actual application value and a wide market prospect.

Description

technical field [0001] The invention discloses a preparation method of a safe granular food desiccant, which belongs to the technical field of packaging material preparation. Background technique [0002] Desiccant is also called adsorbent, which is used in moisture-proof and mildew-proof, and plays a drying role. According to the different adsorption methods and reaction products, it can be divided into physical adsorption desiccant and chemical adsorption desiccant. Physical adsorption desiccants include silica gel, alumina gel, molecular sieve, activated carbon, bone charcoal, charcoal, mineral desiccant, or activated clay, etc. Its drying principle is to physically adsorb water molecules in its own structure. [0003] Food desiccant is an item used in food packaging. Food desiccant is generally non-toxic, tasteless, non-contact corrosive, and non-environmental pollution. Food desiccants are used to reduce the humidity in food bags and prevent food from spoiling; laborat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/24B01D53/26B01D53/28
CPCB01D53/26B01D53/28B01D2257/80B01J20/24B01J20/283B01J2220/485
Inventor 阮炜宋豪薛蕾
Owner 苏州博展干燥剂有限公司
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