KR100564934B1 - method for manufacturing an edible film including polyphenol extracted from green tea - Google Patents

Abstract

A method for producing an edible film containing polyphenols extracted from green tea which can be used for the prevention of oral cavity decay and food packaging for a long time by preparing a film containing polyphenols extracted from green tea which is known to be effective in antibacterial and anti cavities. Is initiated. In the present invention, the protein is completely dissolved in water to prepare 1-15% (w / v) of aqueous protein solution, and 40 to 70% by weight of a plasticizer is added to the amount of protein in the aqueous protein solution to prepare an edible film solution. In addition, the polyphenol extracted from green tea is added to the edible film solution in an amount of 0.1 to 10% by weight, followed by heating, followed by molding after removing the dissolved gas in the cooled edible film solution after cooling to room temperature.

Description

Method for manufacturing an edible film including polyphenol extracted from green tea}

The present invention relates to a method for producing an edible film containing polyphenols extracted from green tea, and in particular, to prepare a film containing polyphenols extracted from green tea known to be effective in antibacterial and anti-caries to prevent tooth decay for a long time. And a method for producing an edible film containing polyphenol extracted from green tea, which can be used for food packaging.

Generally, polyphenol is a substance mainly contained in beverages such as wine and green tea, vegetables, fruits, and the like. Polyphenol is a generic name for various substances such as flavonoids, catechins, and anthocyanins. Polyphenols contained in green tea are divided into four categories: catechin and gallic acid, and categorized into four categories: catechin, calocatechin, epiatechin, and epigalo catechin. do. Polyphenols have the ability to prevent infections of pertussis and influenza bacteria, which are pathogens of respiratory diseases, and protect calcium teeth, which are minerals of teeth, and prevent elution by acids that enter the body as food. do. In addition, there are a number of studies that ingesting tea containing polyphenols has an effect of suppressing cholesterol elevation, thereby preventing arteriosclerosis, myocardial infarction and stroke and suppressing essential hypertension. In particular, lipid peroxide, which is known to have a strong relationship between aging and cancer, is rapidly produced when fats in food take oxygen in the air by oxidation-promoting action such as sunlight, and polyphenols prevent oxidation of fats, that is, A number of studies have been published to show that antioxidant activity prevents aging and cancer.

 Another benefit of polyphenols is that they directly sterilize Mutans, a decayed fungus, to inhibit insoluble glucan production.

Several attempts have been made to develop oral cleansers using the efficacy of such polyphenols. Examples of the application of polyphenols to oral cleaning agents include Korean Patent Publication No. 93-11990, Korean Patent Publication No. 97-25597, and Korean Patent Publication No. 5, which is a mixture of green tea and bamboo salt. No. 97-25598, Korean Patent Publication No. 94-6065, which describes a composition for oral cavity using green tea and herbal medicine, Korean Patent Publication No. 2000-0065386, which describes a mouthwash composition comprising green tea extract stabilizer and plants including green tea Japanese Patent Application Laid-open No. Hei 2-53717 described for toothpaste and mouthwash composition containing the extract.

Such a conventional technique disclosed is a green tea extract containing polyphenols to toothpaste and oral composition, the toothpaste is applied to toothpaste and toothbrush, such as toothpaste and tap water using a tool such as toothpaste There is a hassle that requires, even if the composition for oral cavity (aka goggle) there is a restriction of the place requiring a watering place, in the case of gargle and goggle does not last long-term oral antibacterial and anti-cavities, It had the disadvantage that the anti-cavity action only lasted for a relatively short time.

The present invention has been invented to solve the above problems, and an object of the present invention is to prepare an edible film to which polyphenols extracted from green tea are added. In contrast, the antimicrobial and anti-cavity edible film according to the present invention is configured to be attached to the tooth to be used as the edible film attached to the tooth gradually dissolves and releases the antimicrobial and anti-cavity substance to cause tooth decay for a long time. It is possible to provide a method for producing an edible film containing polyphenol extracted from green tea that can be suppressed as well as an antimicrobial film for food packaging.

The present invention for achieving such an object,

The protein was completely dissolved in water to prepare 1-15% (w / v) aqueous protein solution, and 40-70% by weight of plasticizer was further added to the amount of protein in the aqueous protein solution to prepare an edible film solution. Polyphenol extracted from green tea is further added to the film solution in an amount of 0.1 to 10% by weight, followed by heating. After cooling to room temperature, the dissolved gas in the cooled edible film solution is removed and molded.

Hereinafter, the preferred embodiment of the present invention will be described in detail.

In order to improve food quality, shelf life, and new food packaging methods, researches using edible films based on biopolymers such as proteins, carbohydrates, and fats are being actively conducted. Compared to non-edible, non-degradable plastic polymer film, this edible film is easily decomposed and adds flavors, pigments, and sweeteners to the edible film to give organoleptic properties to the food. It can be used as an edible film containing insufficient nutrients, and can be used as a food packaging material, such as a substance transfer blocking material, and can act as a carrier as an antioxidant or a microbial inhibitor. If it is added may be developed as a film oral treatment.

  The edible antimicrobial film according to the present invention focusing on the possibility of such a edible film is a edible antimicrobial film comprising water and a plasticizer and a small amount of additives such as menthol or peppermint, if necessary, in a protein component or a water-soluble polysaccharide such as soy protein. Polyphenols extracted from green tea, which is a natural antimicrobial agent, are mixed in an amount of 0.1 to 10% by weight to the film-forming composition, and then molded into a film.

Glycerin, which can be used as a plasticizer, serves to freely mix the extract and the main ingredients of the film except water, thereby improving the molding of the film and the physical properties of the film.

   At this time, when the excessive amount of polyphenol, a natural antimicrobial agent, is contained in an amount of 10% by weight or more, the physical properties and productivity of the antimicrobial film are lowered. If it is contained in an amount less than 0.1% by weight, the antimicrobial property is lowered. desirable

<Example>

       Soy protein isolate is completely dissolved in water to prepare a 10% (w / v) aqueous solution of protein, and 50% by weight of a plasticizer of the separated soy protein mass added to the aqueous protein solution is a decorative film After the solution was prepared, polyphenol extracted from green tea was further added to the edible film solution in an amount of 4% by weight, mixed and sufficiently stirred, and then the solution was heated at a temperature of 90 ° C. for 30 minutes. The heated solution was sufficiently cooled at room temperature, and then dissolved in the solution to remove the air, which weakens the film strength when forming the film, using a vacuum pump to remove the dissolved gas in the film forming solution and then molded the film.

In this case, whey protein, casein or egg white protein may be used in place of the separated soy protein, but the present invention will be described by way of example of the isolated soy protein.

In order to confirm the antimicrobial properties of the antimicrobial film prepared as described above, the results of the antimicrobial experiment were shown in Table 1, and the solubility test of the film in water was also performed. The bacterium used to measure the antimicrobial activity in the present invention is Staphylococcus aureus (Staphylococcus aureus) (KCTC 2199, Gram (+) food poisoning bacteria), Escherichia coli (Oscherichia coli) O157 (KCTC 0019, Gram (-)) Food Poisoning), Escherichia coli (KCTC 1041, Gram (-) Escherichia coli), Salmonella typhimurium (KCTC 2053, Gram (-) Food Poisoning), Streptococcus mutans KCTC 3065, Gram (+) cavities) and Pseudomonas aeruginosa (KCTC 1636, Gram (-) Pseudomonas aeruginosa) were cultured on the antimicrobial activity of polyphenols containing polyphenols extracted from green tea. Investigate.

Table 1 Antimicrobial Activity of Edible Films Containing Polyphenol (4% by Weight) Extracted from Green Tea

microbe Low ring Staphylococcus aureus 7.5mm or less Escherichia coli O157 - Escherichia coli - Salmonella typhimorium - Streptococcus mutans 11 mm Pseudomonas auruginosa -

As shown in the results of <Table 1>, the polyphenol-containing edible antimicrobial film showed antibacterial activity against Staphylococcus aureus and Streptococcus mutans, in particular, caries. It has been shown to have a relatively high antimicrobial activity against Streptococcus mutans.

And the solubility test of water in the film, first put the film in a desiccator (decicator) for 3 days, soaked in 40 ml of distilled water for 8 hours in a sufficiently dry state and then weighing the film insoluble in water The solubility of the film was examined.

   Experimental results showed that the solubility in water of the edible film made of the separated soy protein (10% by weight, isolated soy protein: plasticizer = 1: 0.5 (w / w)) was 31.4%. It can be arbitrarily adjusted by adding or subtracting the weight percent of protein and the amount of plasticizer.

In the edible film according to the present invention, unlike the toothpaste and mouthwash after the gargling and gargle, the effect of the anti-detox substance is maintained for a short time, by using the antimicrobial and anti-caramel edible film attached to the teeth during sleep, edible The film dissolves slowly and releases medicinal substances for a long time to prevent caries caused by Streptococcus mutans (KCTC 3065), an oral cavity-causing microorganism. It is an edible and antibacterial film for food packaging that can suppress Staphylococcus aureus.

As described above, the edible antimicrobial film made of natural substances and natural antibacterial substances according to the present invention has no side effects on the human body, and is effective in controlling the bactericidal and proliferation of caries and food poisoning bacteria of the polyphenol component included in the film. It can be used as a new concept of oral cleanliness and tooth decay prevention products that can be easily carried and used by consumers, and can also be used as an antibacterial film that can be used for food packaging.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited thereto and may be improved or modified by those skilled in the art within the scope of the technical idea of the present invention.

Claims (5)

The protein was completely dissolved in water to prepare 1-15% (w / v) aqueous protein solution, and 40 to 70% by weight of a plasticizer was added to the amount of protein in the aqueous protein solution to prepare an edible film solution. The polyphenol extracted from green tea was added to the edible film solution in an amount of 0.1 to 10% by weight, followed by heating. After cooling at room temperature, the dissolved gas in the cooled edible film solution was removed and then extracted from green tea prepared by molding. Method for producing an edible film containing polyphenols. The method of claim 1, wherein the aqueous protein solution is a polyphenol extracted from green tea, characterized in that any one of soy protein isolate, whey protein, casein or egg white protein is used. Method for producing a decorative film containing. (Correction) The method according to claim 1, wherein the heating is performed for 30 minutes at a temperature of 90 ° C. The method of claim 1, wherein the plasticizer is a manufacturing method of an edible film containing polyphenol extracted from green tea, characterized in that the glycerin is used. The method of claim 1, wherein the removal of the dissolved gas is performed using a vacuum pump to remove the dissolved gas in the film forming solution.