Deodorant material for fresh preservation

A deodorant and fresh technology, applied in the fields of alkali metal oxides/hydroxides, inorganic chemistry, gas treatment, etc., can solve the problems of premature fruit ripening, pollution, deterioration and rot of fresh products, etc., and achieve strong capture effect of ability

Active Publication Date: 2018-08-21
ZHONGSHAN FLASHLIGHT POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of the quality of life, people have higher and higher requirements for the quality of consumer goods, especially food, and frozen and refrigerated products will cause various odors in the fresh products in the fresh cabinet due to long-term storage Or odor, if some odors are not eliminated in time, it may affect the quality of fresh products, leading to premature fruit ripening, deterioration of fresh products, and even pollution. At present, there is still a lack of new materials for eliminating odors in fresh cabinets

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Preparation of solid A: Soak attapulgite with 40% nitric acid of mass concentration for 1 hour, then wash to neutrality with deionized water; configuration mass concentration is 5% potassium hydroxide solution, i.e. solution B; A and B were mixed at a mass ratio of 1:2, dehydrated, dried, and then calcined at 860 degrees Celsius for 30 minutes in a nitrogen atmosphere to obtain solution solid C.

[0016] (2) Configure a citric acid solution with a mass concentration of 15%, that is, solution D; mix C and D at a mass ratio of 1:2, stir and react for 2 hours at 55 degrees Celsius, filter, dry, and then dry at 180 degrees Celsius Heat treatment for 30 minutes, cooling, grinding to 200 mesh, and sieving to obtain solid adsorbent E.

[0017] (3) prepare the PVA solution of mass concentration 6%, add solid adsorbent E, solid adsorbent accounts for 2% of PVA solution quality, mix and stir to obtain suspension; Gained suspension is atomized with nebulizer, the liquid of ato...

Embodiment 2

[0019] (1) Preparation of solid A: soak attapulgite with 30% nitric acid for 2 hours, then wash to neutral with deionized water; configure a potassium hydroxide solution with a mass concentration of 8%, i.e. solution B; A and B were mixed at a mass ratio of 1:2, dehydrated, dried, and then calcined at 880 degrees Celsius for 25 minutes in a nitrogen atmosphere to obtain solution solid C.

[0020] (2) The concentration is 10% polyvinyl alcohol, namely solution D; mix C and D at a mass ratio of 1:2, stir and react for 2 hours at 55 degrees Celsius, filter, dry, and then heat-treat at 180 degrees Celsius 30 minutes, cooled, ground to 200 mesh, sieved to obtain solid adsorbent E;

[0021] (3) prepare 5% PVA solution, add solid adsorbent E, solid adsorbent accounts for 1% of PVA solution quality, mix and stir to obtain suspension; Gained suspension is atomized with sprayer, and the droplet of atomization is dried , and then placed in glutaraldehyde vapor at 55 degrees Celsius to r...

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PUM

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Abstract

The invention discloses a deodorant material for preservation of fresh foods. A preparation method comprises the following steps of soaking an inorganic matter by acid, so as to obtain a solid matter A; preparing an alkaline solution B; mixing the solid matter A and the solution B, dewatering, drying, and calcining in the nitrogen atmosphere, so as to obtain a solid C; preparing a citric acid or polyvinyl alcohol solution D; mixing and stirring the solid C and the solution D, filtering, drying, and cooling; grinding, so as to obtain a solid adsorbent E; preparing a PVA (polyvinyl alcohol) solution, adding the solid adsorbent E, mixing, and stirring, so as to obtain a turbid suspension; atomizing the turbid suspension, drying the atomized liquid droplets, putting into glutaraldehyde steam, reacting, and drying, so as to obtain the deodorant material. The deodorant material has the advantages that multiple types of organic gas and inorganic gas can be adsorbed, and the foreign odor in fresh food cabinets can be adsorbed and eliminated.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a deodorant material used for fresh preservation. Background technique [0002] With the continuous improvement of the quality of life, people have higher and higher requirements for the quality of consumer goods, especially food, and frozen and refrigerated products will cause various odors in the fresh products in the fresh cabinet due to long-term storage Or odor, if some odors are not eliminated in time, it may affect the quality of fresh products, leading to premature fruit ripening, deterioration of fresh products, and even pollution. However, there is still a lack of new materials for eliminating odors in fresh cabinets. Contents of the invention [0003] The present invention provides a deodorant material that can be used in fresh cabinets to prevent peculiar smell in order to solve the above-mentioned problems in the prior art. [0004] A kind of deo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/04B01J20/02B01J20/30B01J20/28
CPCB01D53/04B01D2257/90B01J20/02B01J20/28016
Inventor 何炜静刘妍郭艳峰淮亚红张娜
Owner ZHONGSHAN FLASHLIGHT POLYTECHNIC
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