Method for preparing functional soluble and edible compound membranes
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A composite membrane, functional technology, applied in the field of preparation of functional soluble edible composite membrane
Active Publication Date: 2016-06-08
烨云生物技术(武汉)有限公司
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it has some strength but is soft
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Embodiment 1
[0064] 1. Konjac glucomannan 3g, sodium alginate 3g, corn phosphate starch 12g, deionized water 500ml, stir evenly, set aside;
[0065] 2. Chitosan 2g, citric acid 3g, dissolved in 100ml deionized water, stirred evenly, set aside;
[0066] 3. Add 10g of gelatin, add 100ml of deionized water, stir evenly, set aside;
[0068] 5. Add 1g of glycerin, add 100ml of deionized water, stir evenly, set aside;
[0069] Mix the ingredients in the above steps 1, 2, 4, and 5 evenly, homogenize, microwave treatment: frequency 100GHz, temperature 60°C, heating time 40 seconds each time;
[0070] Cast film, add the ingredients in step 3 after the film is formed, the water content of the finished edible film should not be lower than 10%.
Embodiment 2
[0072] 1. 12g soybean protein isolate, 3g methylcellulose, 0.1g saponica gum, 500ml deionized water, stir evenly, set aside;
[0077] 6. Add 1g of glycerin, add 100ml of deionized water, stir evenly, set aside;
[0078] Mix the ingredients in the above steps 1, 2, 3, 5, and 6 evenly, homogenize, microwave treatment: frequency 150GHz, temperature 65°C, heating time 50 seconds each time;
[0079] Cast film, add the ingredients in step 4 after the film is formed, the water content of the finished edible film should not be lower than 10%.
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Abstract
The invention discloses a method for preparing functional soluble and edible compound membranes. The method is characterized in that the functional soluble and edible compound membranes are made of polysaccharides, proteins and starch and further comprises membrane-forming agents, reinforcing agents, plasticizers, cross-linking agents, antioxidants and gelatin, and the membrane-forming agents, the reinforcing agents, the plasticizers, the cross-linking agents and the antioxidants are used as auxiliary materials; the method includes steps of mixing aqueous solution, stirring and homogenizing the aqueous solution to obtain aqueous solution A or mixed aqueous solution B and allowing the aqueous solution A or the mixed aqueous solution B to stand still for standby application; carrying out heating treatment to obtain uniform thin membranes by means of flow-casting and cutting and packaging the compound membranes to obtain finished products. The method has the advantages that the functional soluble and edible compound membranes which are of porous network structures can be formed under the mutual effects of different molecules, have certain strength but are soft, can be dissolved in hot water but are moisture-resistant at normal temperature, can be subjected to heat-seal, are edible and are beneficial and harmless to the health, and the method can be widely applied to the field of food packaging.
Description
technical field [0001] The invention relates to food packaging materials, in particular to a preparation method of a functional soluble edible composite film. Background technique [0002] Packaging materials are a huge industry. According to statistics, the world's per capita consumption of packaging materials has reached 145kg / year, including a large amount of food packaging. In the past few decades, plastic packaging materials have been widely used because of their light weight and low price. Applications, especially in food packaging (including seasonings for instant noodles, instant solid beverages, and powdered medicines, etc.), but plastics pose a serious threat to the human living environment due to their non-degradable accumulation of pollution, and are harmful to human health as food packaging , because plastics belong to high molecular polymers, some monomer residues and low molecular weight substances will be dissolved out during the polymerization synthesis proc...
Claims
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Application Information
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