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Composite chitosan preservative film for citrus gonggan and preparation method of composite chitosan preservative film

A technology of chitosan and plastic wrap, applied in flexible coverings, packaging, wrapping paper, etc., can solve the problem of small effect and achieve the effect of increasing the content of CO2

Inactive Publication Date: 2020-07-28
ZHONGSHAN JIAYUAN ECOLOGICAL AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to propose a composite chitosan preservative film for tangerines and a preparation method thereof, so as to solve the problem that the effect of the tribute tangerines fresh-keeping technology existing in the above-mentioned prior art is small

Method used

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  • Composite chitosan preservative film for citrus gonggan and preparation method of composite chitosan preservative film
  • Composite chitosan preservative film for citrus gonggan and preparation method of composite chitosan preservative film
  • Composite chitosan preservative film for citrus gonggan and preparation method of composite chitosan preservative film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A composite chitosan preservative film for tangerines, comprising the following components: 0.055% chitosan, 0.01% sodium alginate, 2.5% acetic acid solution, 0.03% glycerin, 0.003% silica sol, and 0.050% plant extract , 0.001% sodium trimetaphosphate, and make up the balance with deionized water.

[0029] A kind of preparation method of the composite chitosan preservative film that is used for tribute mandarin orange, as following steps:

[0030] S1: Take a certain amount of chitosan and sodium alginate and add it to 1% acetic acid aqueous solution, heat the solution at 50°C and stir at a speed of 350r / min for 10min to dissolve, add glycerin and silica sol, the ratio of chitosan and glycerin is 1: 0.18, made chitosan solution;

[0031] S2: According to a certain ratio, the plant extract is added to the chitosan solution in step S1 and mixed, a certain amount of deionized water and glycerin are added, the ratio of the plant extract to glycerin is 1.3:0.15, and the solu...

Embodiment 2

[0036] A composite chitosan preservative film for tangerines, comprising the following components: 0.15% chitosan, 0.65% sodium alginate, 1.0% acetic acid solution, 0.045% glycerin, 0.002% silica sol, and 0.075% plant extract , 0.0001% sodium trimetaphosphate, and make up the balance with deionized water.

[0037] A kind of preparation method of the composite chitosan preservative film that is used for tribute mandarin orange, as following steps:

[0038] S1: Take a certain amount of chitosan and sodium alginate and add it to 1% acetic acid aqueous solution, heat the solution at 35°C and stir at a speed of 350r / min for 15min to dissolve, add glycerin and silica sol, the ratio of chitosan and glycerin is 1: 0.18, made chitosan solution;

[0039] S2: According to a certain ratio, the plant extract is added to the chitosan solution in step S1 and mixed, a certain amount of deionized water and glycerin are added, the ratio of the plant extract to glycerin is 1.3:0.15, and the sol...

Embodiment 3

[0044] A composite chitosan preservative film for tangerines, comprising the following components: 0.10% chitosan, 0.035% sodium alginate, 4.3% acetic acid solution, 0.50% glycerin, 0.003% silica sol, and 0.065% plant extract , 0.001% sodium trimetaphosphate, and make up the balance with deionized water.

[0045] A kind of preparation method of the composite chitosan preservative film that is used for tribute mandarin orange, as following steps:

[0046]S1: Take a certain amount of chitosan and sodium alginate and add it to 1% acetic acid aqueous solution, heat the solution at 45°C and stir at a speed of 350r / min for 15min to dissolve, add glycerin and silica sol, the ratio of chitosan and glycerin is 1: 0.18, made chitosan solution;

[0047] S2: According to a certain ratio, the plant extract is added to the chitosan solution in step S1 and mixed, a certain amount of deionized water and glycerin are added, the ratio of the plant extract to glycerin is 1.3:0.15, and the solut...

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Abstract

The invention discloses a composite chitosan preservative film for citrus gonggan and a preparation method of the composite chitosan preservative film, and belongs to the technical field of food preservation. The composite chitosan preservative film comprises the following components: 0.055-0.15% of chitosan, 0.01-0.65% of sodium alginate, 1.0-4.3% of an acetic acid solution, 0.03-0.50% of glycerin, 0.0001-0.003% of silica sol, 0.050-0.075% of a plant extract, 0.0001-0.001% of sodium trimetaphosphate, and the balance of deionized water supplemented to reach 100%. The composite chitosan preservative film has an antibacterial property, reduces the respiratory metabolism intensity of citrus gonggan, slows down the ripening of fruits and vegetables, and delays the preservation effect and timeof citrus gonggan.

Description

technical field [0001] The invention belongs to the technical field of food preservation, and in particular relates to a composite chitosan preservation film for tangerines and a preparation method thereof. Background technique [0002] Gonggan is a natural hybrid of orange and tangerine. Its fruit is beautiful in appearance, and the peel of the ripe fruit is orange-yellow to orange-red. Tribute citrus has thin skin and few cores, crispy meat without dross, sweet and fragrant honey, high sugar and low acidity, and strong flavor. It combines the dual advantages of beautiful appearance of oranges and tender citrus meat, easy to peel, which is incomparable to other citrus varieties. , known as the emperor of citrus, welcomed by consumers. [0003] China is one of the important origins of citrus, which is rich in citrus resources and has a variety of fine varieties, with a cultivation history of more than 4,000 years. After long-term cultivation and selection, citrus has becom...

Claims

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Application Information

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IPC IPC(8): C08L5/08C08L5/04C08K13/02C08K5/053C08K3/36C08K3/32C08K5/00C08J5/18B65D65/46
CPCB65D65/466C08J5/18C08J2305/04C08J2305/08C08J2405/04C08J2405/08C08K3/36C08K5/005C08K5/053C08K13/02C08K2003/324
Inventor 林波林春极
Owner ZHONGSHAN JIAYUAN ECOLOGICAL AGRI CO LTD
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