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Edible deciccant

A desiccant and acrylate technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of conjunctiva and corneal damage, esophagus corrosion, etc., and achieve the effect of strong water retention, environmental friendliness and high hygroscopicity

Active Publication Date: 2008-07-16
WUHAN LICHENG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, calcium hydroxide is alkaline and corrosive to the oropharynx and esophagus. If it splashes into the eyes, it will cause damage to the conjunctiva and cornea.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: it is made by the raw material of following weight ratio:

[0035] Recipe: Konjac flour grafted acrylate 1 part

[0036] 1 part rice starch

[0037] Preparation method: (Chinese patent 1410463)

[0038] 1. After gelatinizing 4.5 parts of konjac flour and 100 parts of water at a temperature of 40°C (solid content 4.5%), add cooled acrylic acid partially neutralized with sodium hydroxide (neutralization degree is 80%) through a proportional pump , The weight ratio of konjac flour to acrylic acid is 1:50.

[0039] 2. Add 0.5wt% potassium persulfate and 0.1wt% N,N'-methylenebisacrylamide, stir and nitrogen protection, and initiate graft copolymerization at 60°C.

[0040] 3. Nitrogen is injected into a helical tube turbulent flow reactor at a temperature of 90° C. to carry out graft copolymerization along with the reaction solution, and the reaction time is 240 seconds.

[0041] 4. Spiral extrusion is sent to the drum type film forming dryer to make t...

Embodiment 2

[0046] Embodiment 2: it is made by the raw material of following weight ratio:

[0047] Recipe: 0.5 parts of starch grafted acrylate

[0048] 5 servings of corn

[0049] Preparation method: Mix 0.5 parts of starch-grafted acrylate and 5 parts of rice in a stirring mixer, then puff, pulverize and granulate, sieve, and pack through a quantitative dispensing machine.

Embodiment 3

[0050] Embodiment 3: it is made by the raw material of following weight ratio:

[0051] Recipe: 0.2 parts of chitin grafted acrylate

[0052] Straw 10 parts

[0053] Preparation method: Mix 0.2 parts of chitin-grafted acrylate and 10 parts of straw in a stirring mixer, then extrude, pulverize and granulate, sieve, and pack through a quantitative dispensing machine.

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Abstract

The edible desiccant is prepared through mixing water absorbing material and supplementary material in certain ratio, puffing in puffing machine, crushing in crushing machine, pelletizing, sieving and packing. The edible desiccant has high moisture absorption of water absorbing rate 35-150 % at 25 deg.c and 90 % RH, high water maintaining property, safety, biodegradability and other advantages. It may be used widely for moisture protection and drying of food, medicine, instrument, seed, clothing, etc.

Description

technical field [0001] The invention relates to an edible desiccant, which is suitable for moisture-proofing of food; medicine; optical electronics, precision instruments, meters; seeds, processed food, tea; clothing, footwear, leather, cultural relics, arts and crafts, etc. dry. Background technique [0002] The desiccants currently used are mainly made of silica gel, montmorillonite and quicklime. [0003] The moisture absorption capacity of silica gel desiccant is about 35% of its own weight. It is easy to break after absorbing a large amount of water in an environment with high humidity, and the regeneration temperature is high, so its application is limited. In addition, the silica gel used as a desiccant has a beautiful color and shape, and is easy to be eaten by children or as a condiment. [0004] Montmorillonite desiccant has better hygroscopic performance, but it may contain heavy metal salts and a large number of other impurities, and some are even radioactive, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/00C08F251/02B01J20/26
Inventor 姜发堂李万芬袁世炬
Owner WUHAN LICHENG BIOTECH
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