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A kind of preparation method and application of plasma activated chitosan microspheres

A technology of chitosan microspheres and plasma activation is applied in the preparation of alcoholic beverages, chemical instruments and methods, inorganic chemistry, etc. Adsorption effect, the effect of improving light transmittance

Active Publication Date: 2019-07-26
诏安紫梅山果酒研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantage: It only focuses on the obvious effect on the protein and polyphenols of wine, but the effect on organic acids and solid substances is not obvious

Method used

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  • A kind of preparation method and application of plasma activated chitosan microspheres

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Effect test

Embodiment 1

[0034] 1. Preliminary preparation:

[0035]Preparation of active bentonite: in parts by weight, mix 20 parts of bentonite, 2 parts of medium calcium hydroxide and 50 parts of ammonium chloride solution with a mass fraction of 5%, and after infrared treatment, filter and wash the filter residue for 2 times , adding 100 parts of deionized water, freezing at -17°C for 12h, then thawing, drying, and finally roasting in a muffle furnace at 160°C for 2h to obtain activated bentonite.

[0036] The substance prepared above was used in the following preparation method.

[0037] 2. a preparation method of plasma-activated chitosan microspheres, comprising the following steps:

[0038] (1) Preparation of inner core material: in parts by weight, 100 parts of activated bentonite, 5 parts of 2% acetic acid solution, 15 parts of sodium carbonate, 2 parts of polyethylene glycol 200 and 200 parts of deionized water are put into the reactor In the process, raise the temperature to 75°C, stir ...

Embodiment 2

[0042] 1. Preliminary preparation:

[0043] Preparation of active bentonite: in parts by weight, mix 25 parts of bentonite, 2.5 parts of medium magnesium hydroxide and 52 parts of ammonium chloride solution with a mass fraction of 7%, and filter and wash the filter residue twice after infrared treatment , adding 100 parts of deionized water, freezing at -17°C for 15 hours, then thawing, drying, and finally roasting in a muffle furnace at 185°C for 2.5 hours to obtain activated bentonite.

[0044] The substance prepared above was used in the following preparation method.

[0045] 2. a preparation method of plasma-activated chitosan microspheres, comprising the following steps:

[0046] (1) Preparation of inner core material: in parts by weight, 100 parts of activated bentonite, 10 parts of 2.5% acetic acid solution, 16 parts of sodium carbonate, 2 parts of polyacrylamide and 220 parts of deionized water are put into the reactor, Raise the temperature to 76°C, stir for 17min a...

Embodiment 3

[0050] 1. Preliminary preparation:

[0051] The preparation of activated bentonite: in parts by weight, 29 parts of bentonite, 3 parts of calcium hydroxide and 54 parts of ammonium chloride solution with a mass fraction of 10% were mixed uniformly, after infrared treatment, filtered, and after washing the filter residue for 2 times, Add 100 parts of deionized water, freeze at -17°C for 17 hours, thaw and dry, and finally roast in a muffle furnace at 200°C for 3 hours to obtain activated bentonite.

[0052] The substance prepared above was used in the following preparation method.

[0053] 2. a preparation method of plasma-activated chitosan microspheres, comprising the following steps:

[0054] (1) Preparation of inner core material: in parts by weight, 100 parts of active bentonite, 9 parts of 4% acetic acid solution, 18 parts of sodium carbonate, 2 parts of sodium lauryl sulfate and 215 parts of deionized water are put into reaction In the container, raise the temperature ...

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Abstract

The invention discloses a preparation method and an application of plasma activated chitosan microspheres. The preparation method comprises the steps as follows: (1) preparation of a core material: active bentonite, an acid solution, sodium carbonate, a dispersing agent and deionized water are placed in a reactor to form a suspension, ferric nitrate and cerous nitrate are added, the mixture continues to react for 25-36 h, centrifugal separation is performed, and metallic element doped bentonite is obtained; (2) preparation of chitosan microspheres; (3) plasma activation treatment of the chitosan microspheres: the chitosan microspheres are placed in a plasma activation instrument and treated with plasma CO2 gas for 200-400 s under the pressure of 30-80 Pa, and the plasma activated chitosan microspheres are obtained. The prepared plasma activated chitosan microspheres can obviously adsorb solid substances and improve the content of organic acid, can be applied to a green plum wine clarification process to improve the flavor of green plum wine and enhance the aroma of the green plum wine and has high market popularization value.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of preparation of chitosan microspheres, in particular to a preparation method and application of plasma-activated chitosan microspheres. [0003] 【Background technique】 [0004] Chitosan, also known as deacetylated chitin, is obtained by deacetylation of chitin that exists widely in nature, and its chemical name is polyglucosamine (1-4)-2-amino-B-D glucose. Its excellent properties such as biocompatibility, blood compatibility, safety and microbial degradability have attracted widespread attention from all walks of life, and significant progress has been made in the application research in the food field. Among various types of chitosan modifiers, chitosan microspheres show unique functional advantages, such as: chitosan microspheres have excellent adhesion, and the surface of chitosan microspheres can be grafted with functional groups. Based on the above advantages, chitosan microspheres have become a hot s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C12H1/056
CPCB01J20/0207B01J20/0229B01J20/041B01J20/043B01J20/12B01J20/24B01J20/28016C12H1/0424
Inventor 黄秋丽
Owner 诏安紫梅山果酒研发有限公司
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