Environment-friendly food drying agent and preparation method thereof

A food drying and environmental protection technology, applied in food preservation, food ingredients, food science, etc., can solve the problems of unhygienic contact between rust and food, increase drying cost, and inability to re-use, etc., to achieve stable product quality and extended use The effect that life and water absorption efficiency are high

Inactive Publication Date: 2021-04-06
姚计化
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the added iron powder is very easy to rust after use. Although the drying rate is improved, the rust produced is unsanitary in contact with food and cannot be reused. The degradation performance is poor, which not only increases the drying cost, but also brings Environmental issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An environmentally friendly food desiccant, characterized in that it includes the following components by weight: 4 parts of chitosan quaternary ammonium salt modified carboxyl metal organic framework, 2 parts of residue porous material, 2 parts of wood fiber powder , 3 parts of porous β-cyclodextrin cross-linked polymer nanofibers, 50 parts of silica gel, and 2 parts of magnesium sulfate.

[0033] The particle size of the silica gel is 50 mesh, and the pore size range is 5.5 nm.

[0034] The particle diameter of the lignocellulosic powder is 200 μm.

[0035] The residue porous material is the residue porous material after extraction of Chinese herbal medicine.

[0036]The preparation method of the chitosan quaternary ammonium salt modified metal organic framework with carboxyl group comprises the following steps: adding the chitosan quaternary ammonium salt and the metal organic framework with carboxyl group into water, stirring and reacting at 60°C for 3 hours , fol...

Embodiment 2

[0041] An environment-friendly food desiccant, characterized in that it comprises the following components in parts by weight: 5 parts of chitosan quaternary ammonium salt modified carboxyl metal organic framework, 3 parts of residue porous material, 2.5 parts of wood fiber powder , 4 parts of porous β-cyclodextrin cross-linked polymer nanofibers, 52 parts of silica gel, and 2.5 parts of magnesium sulfate.

[0042] The particle size of the silica gel is 70 mesh, and the pore size range is 6.5 nm.

[0043] The particle diameter of the lignocellulosic powder is 400 μm.

[0044] The residue porous material is the residue porous material after extraction of aromatic plants.

[0045] The preparation method of the chitosan quaternary ammonium salt modified metal organic framework with carboxyl group comprises the following steps: adding the chitosan quaternary ammonium salt and the metal organic framework with carboxyl group into water, stirring and reacting at 65°C for 3.5 hours ...

Embodiment 3

[0050] An environment-friendly food desiccant, characterized in that it comprises the following components by weight: 5.5 parts of chitosan quaternary ammonium salt modified carboxyl metal organic framework, 3.5 parts of residual porous material, 3 parts of wood fiber powder , 4.5 parts of porous β-cyclodextrin cross-linked polymer nanofibers, 55 parts of silica gel, and 3 parts of magnesium sulfate.

[0051] The particle diameter of the silica gel is 90 mesh, and the pore diameter range is 7.5nm.

[0052] The particle diameter of the lignocellulosic powder is 800 μm.

[0053] The residue porous material is the residue porous material after fruit extraction.

[0054] The preparation method of the chitosan quaternary ammonium salt modified metal organic framework with carboxyl group comprises the following steps: adding the chitosan quaternary ammonium salt and the metal organic framework with carboxyl group to water, stirring and reacting at 70°C for 4 hours , followed by ro...

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Abstract

The invention discloses an environment-friendly food drying agent. The environment-friendly food drying agent is prepared from the following components in parts by weight: 4-7 parts of chitosan quaternary ammonium salt modified carboxyl-containing metal organic framework, 2-5 parts of residue porous material, 2-4 parts of wood fiber powder, 3-6 parts of porous beta cyclodextrin cross-linked polymer nanofiber, 50-60 parts of silica gel, 2-4 parts of magnesium sulfate, 1-3 parts of bamboo charcoal viscose fiber and 3-5 parts of porous polysaccharide microspheres. The invention further discloses a preparation method of the environment-friendly food drying agent. The environment-friendly food drying agent disclosed by the invention is good in use safety and environmental friendliness, extremely high in moisture absorption performance, water retention capacity and oxidation resistance, stable in product quality and low in cost, and has reproducibility and degradability.

Description

technical field [0001] The invention relates to the technical field of desiccants, in particular to an environment-friendly food desiccant and a preparation method thereof. Background technique [0002] Food desiccant is an item used in food packaging. It is an important protective agent in the food packaging process, which can reduce the humidity in the food bag and prevent food from going bad. An ideal food desiccant should have the characteristics of non-toxic, odorless, non-contact corrosion, no environmental pollution, good drying and moisture absorption effect, and fast drying speed. [0003] At present, most of the food desiccants on the market are prepared from silica gel, montmorillonite and quicklime. Silica gel desiccant is non-toxic, tasteless, odorless, stable in chemical properties, and has strong hygroscopic performance, but it is easy to break after absorbing a large amount of water in a high temperature environment, and the regeneration temperature is high,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3427
CPCA23L3/3427A23V2002/00A23V2250/161
Inventor 姚计化
Owner 姚计化
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