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Technology for producing degradable and edible film by utilizing pea starch

A technology of pea starch and edible film, applied in biological packaging, climate sustainability, sustainable packaging industry and other directions, can solve the problems of limiting the application scope of degradable edible film, imperfect production process, low performance, etc., and achieve improvement Mechanical properties, high strength capability, the effect of preventing film cracking

Inactive Publication Date: 2012-01-11
活泼 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few studies on the properties of the film itself, such as tensile strength, moisture permeability, air permeability, water solubility, processing methods, and improving the performance of materials. Compared with other modern packaging technologies, there are still imperfections, such as low performance. , the production process is not perfect, which limits the application range of degradable edible film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] A technology for producing degradable edible films using pea starch,

[0007] 1. Component preparation: 80kg of pea starch, add 1000L of distilled water, 0.15L of glycerin and 2kg of sodium alginate under stirring, after homogenization, heat and stir in a water bath at 90°C until it is completely gelatinized to obtain a starch gelatinization solution.

[0008] 2. Degassing: degassing (0.5h-2h) under 0.1MPa vacuum, then let stand for 1h.

[0009] 3. Casting: Set the width and height of the scraper according to the film thickness requirements, and cast on the copper plate conveyor belt that can control the film thickness.

[0010] 4. Drying: The copper plate film-forming conveyor belt first passes through the steam drying pipeline equipment, and then passes through the cooling pipeline equipment with a relative humidity of about 50% to form a film.

[0011] 5. Film removal: mechanical roll film, packaging and storage.

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Abstract

The invention provides technology for producing a degradable and edible film by utilizing pea starch, belonging to the technical field of food processing. The technology comprises the following main production processes: firstly gelatinizing the pea starch; then adding glycerin and sodium alginate which improve the film performance; carrying out tape casting on the film solution on a copper plate after homogenization and degasification; adopting a copper plate film forming conveyer belt to firstly pass through steam drying pipeline equipment and then pass through cooling pipeline equipment with relative humidity being about 50% to form a film; and finally adopting mechanical film rolling equipment to roll the film, thus producing a degradable and edible film with high strength. The film material has good mechanical performance and oil, moisture and oxygen resistance. The film can be applied to packaging of various materials such as food, health products, drugs, feed and the like.

Description

technical field [0001] The invention discloses a technology for producing a degradable edible film by utilizing pea starch, which belongs to the technical field of food processing. Background technique [0002] Degradable edible film is a new type of packaging material that can be coated to keep fresh and can be processed into bags, boxes and other packaging forms to replace traditional synthetic packaging materials such as plastics. At the same time, it can also be a component of food and add to food. Color, fragrance and nutritional value. The degradable edible film has the advantages of no pollution and degradability, which is incomparable to plastic packaging. This is becoming more and more serious in the "white pollution". Today, most developed countries have banned or restricted the use of plastic packaging and advocated the use of "green packaging". Undoubtedly the best choice. Therefore, the preparation technology of degradable edible film packaging materials integ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L3/02C08L5/04C08K5/053B65D65/46
CPCY02W90/10Y02A40/90
Inventor 活泼涂方颖
Owner 活泼
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