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The new trend of edible packaging materials into food packaging

source: time:2019-09-17 11:58:56


Edible packaging material is a kind of resource-based packaging material without waste, which can make the maximum use of resources and has the characteristics of environmental protection, which makes it become one of the key points of the future development of packaging industry. For example, bean dregs packaging paper, bio glue coating packaging paper, and "green packaging box" made of sucrose.

Edible packaging material is a kind of packaging material with network structure, which is made of natural edible materials, such as polysaccharide, protein, cellulose and so on. As a kind of environmental protection packaging material without waste, edible packaging material will become one of the hot spots in the industry with great development potential.

Edible materials

There are many kinds of basic materials for edible packaging materials. According to the characteristics of the main raw materials used, they can be divided into starch, protein, sugar, fat, compound and vegetable.

Compared with other packaging materials, edible packaging materials have the following characteristics: ① water resistance, which can delay the migration and diffusion of water, oil and other ingredients in food; ② optional air permeability and impermeability, which can effectively prevent the volatilization of flavor substances in food; ③ better physical and mechanical properties, which is convenient for processing and molding; ④ can be added as food antioxidant substances, etc The carrier of the agent; ⑤ edible, no pollution to the environment. With these characteristics, edible packaging materials have the following special advantages on the premise of meeting the basic packaging functions: ① edible, easy to be degraded by microorganisms, no pollution; ② more suitable for single food packaging; ③ some edible films, such as whey protein film, soybean protein film, etc., have higher nutritional value; ④ prevent the migration of food components And lead to food deterioration.

Although the edible packaging materials have many advantages such as environmental protection and no waste, there are some practical deficiencies. First of all, edible packaging materials are more suitable for the inner packaging of products, so when packaging products, we need to add another layer of outer packaging, which increases the packaging cost.

Secondly, it is necessary to evaluate whether all kinds of additives and raw materials of new edible packaging materials are completely safe for human body.

Moreover, edible packaging materials are mainly made of sugar, fat, protein and other materials, most of which have certain water absorption and are easy to be biodegraded, so they are prone to mildew and rot.

In addition, edible packaging materials are suitable for packaging small food and dry food, not suitable for packaging food containing moisture. Finally, edible packaging materials are edible packaging materials processed and shaped under certain industrial conditions by using natural organic small molecules and high molecular substances after extraction or refining. If there is any pollution in the process of material collection and transportation, it will be harmful to human body, so special attention should be paid.

Edible packaging

In recent years, edible packaging is favored by the food industry of developed countries by virtue of its various functions, harmless environment, convenient materials, edible and other characteristics, with new products and technologies emerging constantly. In fact, in China, edible packaging has long been used in real life, for example, the glutinous rice paper wrapped in the outer layer of candy and pastry is made of starch such as sweet potato, corn or wheat flour, which is ready to be melted at the entrance to prevent adhesion with the outer packaging. At present, edible packaging has been involved in a wide range of application fields, such as casings, fruit wax, sugar coating, glutinous rice paper, ice coating and tablet coating, etc., which appear in front of the public in a variety of shapes.

1. Bean dregs packaging paper

Bean dregs packaging paper is made of bean dregs as the main raw material, which is characterized by melting with hot water without tearing the package. Launched by a Japanese company, it is not only convenient, but also has certain nutritional value, which is most suitable for the packaging of fast-food noodles seasoning.

2. Edible packaging container

The edible packaging container is developed and produced by Queensland potato chip container company, Australia. It is mainly used for packaging potato chips. The idea is that after people eat potato chips, they can also eat the containers together. It is particularly worth mentioning that in the process of container production, smoked flavor, barbecue, seafood and seasonings with different flavors such as sweet, sour, salty and spicy are added to meet the tastes of different consumers.

3. Konjac glucomannan carrageenan edible packaging composite film

The membrane can prevent water evaporation, reduce the respiration of fruits and vegetables, reduce the loss of nutrients, and inhibit bacteria and mold. It can be used to pack fruits, such as fresh longan, which can basically inhibit the browning and water loss of the peel, keep the original quality of longan, and extend the storage period and shelf life.

4. Bio adhesive coated packaging paper

This kind of wrapping paper was developed in China. When it is made, the special starch glue and bone glue are used, and a certain proportion of additives are added to make the glue material to be applied on the surface of the paper. The coating paper is oil-resistant and water-resistant, and can be used for fast food packaging or food packaging that requires to bear certain temperature and moisture.

5. "Green box" made of sucrose

Cristal Union, a leading French edible sugar company, announced recently that it will launch a candy box made of sucrose, which will be customized for its brand "Daddy". There is no difference in appearance between the candy box extracted from plants and the traditional chemical box, but the cost has doubled. However, the new packaging can be recycled, which is very beneficial to the environment

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