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Edible packaging film prepared from carboxymethylated potato residues and preparation method thereof

A technology of carboxymethylation and potato, which is applied in the field of edible packaging film prepared by carboxymethylation potato residue and its preparation, can solve the problems of waste of resources, poor recycling and utilization of potato residue, etc., and achieve low product cost , Considerable economic benefits, large processing effect

Inactive Publication Date: 2011-08-17
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An object of the present invention is to provide a kind of edible packaging film that utilizes carboxymethylated potato residues to prepare, and another object of the present invention is to provide a preparation method for edible packaging films that utilize carboxymethylated potato residues to prepare, It is used to solve the current problem of poor recycling of potato dregs and waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The edible packaging film prepared by utilizing carboxymethylated potato dregs contains the components and the proportions of each formula in parts by weight: 20 g of sodium carboxymethyl cellulose prepared from potato dregs, 1000 g of water, and carrageenan 6g, sodium alginate 3g, glycerin 10g, sorbitol 10g, stearic acid 1g, palmitic acid 1g; it is prepared from the above components into a composite solution, and then coated into a film by casting method. Concrete preparation process is as follows:

[0014] Carboxymethylation of potato residues: put 20g potato residues into a 5000mL three-neck flask, add 18gNaOH, 300mL volume fraction is 75% ethanol solution, and add 0.1mL volume percentage concentration of 35% hydrogen peroxide and stir simultaneously, The cellulose macromolecules were first degraded to facilitate alkalization and swelling, and alkaline immersion was carried out in a constant temperature water bath at 35°C for 30 minutes. During this process, 600W mic...

Embodiment 2

[0017] The edible packaging film prepared by utilizing carboxymethylated potato residues contains the components and the proportions of each formula in parts by weight: 30 g of sodium carboxymethyl cellulose prepared from potato residues, 1000 g of water, and carrageenan 12g, sodium alginate 6g, glycerin 12g, sorbitol 12g, stearic acid 2g, palmitic acid 2g; it is prepared from the above components into a composite solution, and then coated into a film by casting method. Concrete preparation process is as follows:

[0018] Carboxymethylation of potato residues: put 30g of potato residues into a 5000mL three-necked reaction flask, add 28gNaOH, 500mL volume fraction of 80% ethanol solution, and simultaneously add 0.2mL volume percentage concentration of 35% hydrogen peroxide and stir , so that the cellulose macromolecules are first degraded to facilitate alkalization and swelling. Alkaline immersion in a constant temperature water bath at 35°C for 35 minutes, during which 500W mi...

Embodiment 3

[0022] The components it contains and the proportions of each formula are calculated in parts by weight: 40g of sodium carboxymethylcellulose prepared from potato residues, 1000g of water, 20g of carrageenan, 10g of sodium alginate, 15g of glycerin, 15g of sorbitol, stearic acid 3g, palmitic acid 3g; After it is made into composite solution by above-mentioned each component, film-forming is made through casting method coating. Concrete preparation process is as follows:

[0023] Carboxymethylation of potato residues: put 40g of potato residues into a 5000mL three-necked reaction flask, add 42gNaOH, 650mL volume fraction of 90% ethanol solution, and simultaneously add 0.3mL volume percentage concentration of 35% hydrogen peroxide and stir , so that the cellulose macromolecules are first degraded to facilitate alkalization and swelling. Alkaline immersion in a constant temperature water bath at 35°C for 40 minutes, during which 600W microwave treatment is used for 15 minutes. I...

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Abstract

The invention relates to an edible packaging film prepared from carboxymethylated potato residues and a preparation method thereof, wherein the edible packaging film prepared from carboxymethylated potato residues comprises the following components in parts by weight: 20-40 parts of sodium carboxymethyl cellulose, 1000 parts of water, 6-20 parts of carrageenin, 3-10 parts of sodium alginate, 10-15 parts of glycerol, 10-15 parts of sorbitol, 1-3 parts of stearic acid and 1-3 parts of palmitin; and the edible packaging film prepared from carboxymethylated potato residues is prepared by the following steps of preparing a composite solution from the components and coating to form a film by using a casting method. The edible film prepared from the potato residues as the main raw material has the advantages of simple utilized production facilities, simple and convenient process, low production cost and high added value; in addition, a new way-out of potato residue utilization is found out for corporations, and remarkable economic benefits are also brought to the corporations at the same time.

Description

1. Technical field: [0001] The invention relates to a formula and a preparation method of an edible film, in particular to an edible packaging film prepared by carboxymethylated potato dregs and a preparation method thereof. 2. Background technology: [0002] Potato residue is a by-product of processing starch from fresh potato, which contains a large amount of cellulose, pectin, and a small amount of starch and protein. Analysis shows that potato residue (wet basis) contains 11% of fiber, Starch 3.1%, moisture 84.6%, protein and other substances 1.3%. It can be seen that the main components of potato residues are cellulose and starch. According to statistics, my country produces more than 600,000 tons of potato starch every year and produces more than 4 million tons of potato residue. If it is not recycled, it will not only cause waste of resources, but also be used by microorganisms, causing serious environmental pollution. [0003] Now the comprehensive utilization of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/26C08L5/00C08L5/04C08K5/053C08K5/09C08J5/18C08B11/12B65D65/46
Inventor 曹龙奎卞雪
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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