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Bio-safety formaldehyde scavenger and preparation method and application thereof

A formaldehyde scavenger and biosafety technology, applied in the field of air purification, can solve the problems of imperfect preparation process, secondary pollution, high production cost, etc., and achieve the effects of convenient acquisition of raw materials, enhanced permeability, and low cost

Active Publication Date: 2019-04-19
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a biologically safe formaldehyde scavenger and its preparation method and use in order to overcome the problems of imperfect preparation process of existing formaldehyde scavenger, secondary pollution and high production cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare biosafe formaldehyde scavenger, the steps are as follows:

[0030] Step 1: Add 0.3% of the total weight of bacteria to the tofu. The bacteria are mixed by Mucor and Bacillus subtilis according to the quality of 2:1. cover with a layer of clean gauze or straw), the fermentation temperature is 25-28°C, the relative humidity is 80%, and the fermentation time is 3-5 days, so that the protein in the tofu is fermented and enzymolyzed into polypeptides and amino acids to obtain protease Solution;

[0031] Step 2: Add distilled water with a total weight of 15% to the protein hydrolyzate obtained in step 1, continue to ferment under sealed conditions after stirring, the fermentation temperature is 25-28°C, and the fermentation time is 2 days. Exhaust the exhaust gas to obtain a chylus product;

[0032] Step 3: Spray-dry the chylus-like product prepared in Step 2 to obtain a biosafety formaldehyde scavenger. The product is granular, which is convenient for packaging an...

Embodiment 2

[0034] Prepare biosafe formaldehyde scavenger, the steps are as follows:

[0035] Step 1: Add 0.4 total weight % of strains to the steamed watercress, the strains are mixed by Mucor and Bacillus subtilis according to the quality of 2:1, and fermented under semi-closed conditions in the culture room (semi-closed conditions are Cover the surface with a layer of clean gauze or straw during fermentation), the fermentation temperature is 25-28°C, the relative humidity is 75%, and the fermentation time is 4 days, so that the protein is fermented and enzymatically hydrolyzed into polypeptides and amino acids to obtain proteolysis thing;

[0036] Step 2: Add distilled water with a total weight of 20% to the protein hydrolyzate obtained in step 1, continue to ferment under sealed conditions after stirring, the fermentation temperature is 25-28°C, and the fermentation time is 2 days. Exhaust the exhaust gas to obtain a chylus product;

[0037] Step 3: Spray-dry the chylus-like product...

Embodiment 3

[0039]Prepare biosafe formaldehyde scavenger, the steps are as follows:

[0040] Step 1: Add 0.2 total weight % of strains to the soybean meal, the strains are mixed by Mucor and Bacillus subtilis according to the quality of 2:1, and fermented under semi-closed conditions in the culture room (semi-closed conditions are fermented on the surface during fermentation) cover with a layer of clean gauze or straw), the fermentation temperature is 25-28°C, the relative humidity is 70%, and the fermentation time is 5 days, so that the protein is fermented and enzymolyzed into polypeptides and amino acids to obtain protein hydrolyzate;

[0041] Step 2: Add distilled water with a total weight of 10% to the protein hydrolyzate obtained in step 1, continue to ferment under sealed conditions after stirring, the fermentation temperature is 25-28°C, and the fermentation time is 2 days. Exhaust the exhaust gas to obtain a chylus product;

[0042] Step 3: Spray-dry the chylus-like product prep...

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PUM

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Abstract

The invention relates to a bio-safety formaldehyde scavenger and a preparation method and application thereof. A moderate fermentation strain is added into a cooked soybean product for fermentation for several days, so that protein of the cooked soybean product is fermented and enzymolysed into soybean peptides and amino acid; then distilled water is added, and after stirring, fermentation is continued under the sealing condition to obtain chyle-shaped product; spray drying is carried out on the product to obtain the bio-safety formaldehyde scavenger. The bio-safety formaldehyde scavenger is adjusted to be alkalescent after being diluted with water, and formaldehyde in the indoor air can be effectively removed through spraying, application or aeration adsorption treatment at the room temperature. The bio-safety formaldehyde scavenger has the advantages that the production cost is low, not only does the bio-safety formaldehyde scavenger have a good effect of removing the formaldehyde, but also the product generated after the formaldehyde is removed has no toxicity and pollution, and the secondary pollution to the environment cannot be caused.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to a biosafety formaldehyde scavenger and its preparation method and application. Background technique [0002] Formaldehyde pollution is already a common type of air pollution, and the widespread use of formaldehyde leads to excessive formaldehyde concentration in the indoor environment. It is already a very serious environmental problem at home and abroad. Such problems cannot be avoided and can only be dealt with. At present, indoor formaldehyde control technologies include physical adsorption method, chemical treatment method, photocatalytic method, etc., but all the methods for removing formaldehyde are not very perfect. Leading to secondary pollution, these problems are the difficulties in solving the problem of formaldehyde removal at home and abroad. [0003] The physical adsorption method is a method of using porous materials as adsorption materials to adsorb form...

Claims

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Application Information

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IPC IPC(8): B01J20/00B01J20/30B01D53/02C12P21/06
CPCB01D53/02B01J20/00C12P21/06B01J20/3085B01D2258/06B01D2257/70
Inventor 龙绛雪代智能傅海燕曾淼森刘建福高攀峰吴义诚
Owner XIAMEN UNIV OF TECH
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