[Abstract] This paper introduces the relationship between food green packaging and environmental protection, discusses the selection and application of food green packaging materials, the design of green food packaging, and market value.
Keywords: green food; food green packaging design According to experts, green foods will dominate the world market in the next 10 years, and good green packaging is the prevalence of green food among consumers. It is of great significance for shaping green food brands, ensuring the quality of green foods and maintaining the freshness of green foods. Green foods must have green packaging. This has become the new style of green food packaging in the new century and has become the mainstream of packaging. The government’s environmental protection department clearly stipulates that the “four-in-one†sign should be on the outer package of green food, namely, the green food sign, the text of green food, the code and the laser anti-counterfeit label, and the certification unit. After clear packaging, it will facilitate the identification of consumers.
1. The internal function of green packaging and food green packaging The basic function of green packaging is to protect the quality of green food, maintain the freshness of green food, and harmless to the ecological environment. One of the powerful marketing tools. Green food refers to the safe, high-quality, nutritious food that has been certified by a specialized agency to permit the use of green food labels. In addition to complying with the general standards for national food labels, the packaging of products must also meet the standards for green food packaging and labeling. The combination of green packaging and green food constitutes an organism that protects the environment. In the world environment that emphasizes environmental protection, the role of green packaging in sales is increasingly important, and it is increasingly being spurred by consumers from all countries. The important content of the green revolution in the new century is the “green packaging revolution†as an important weight for the new round of market competition. Good green packaging is almost a pass for green food among consumers. It shapes green foods into good brands, guarantees the quality of green foods, and becomes the key to the injection of green food into the international market. It is certain that green packaging products with a strong green atmosphere have strong vitality and competitiveness in the international market, and food packaging is most closely related to human beings. People touch it all the time and it affects people. all. Therefore, the green packaging system is of great significance. Developing green packaging is an effective way to promote sustainable development, and it is also an inevitable choice for environmental protection in the 21st century.
2. Selection of Green Packaging Materials for Food and Green Packaging Design for Food Green Packaging China's State Bureau of Technical Supervision has developed a standard that includes five types of products: pulp, paperboard coatings, plant fibers, starch, and biodegradable plastics. In today's situation, countries all over the world are raising "pollution-free, pollution-free" packaging products. These packaging materials require the use of materials, less waste, and can save a lot of resources; waste can be recycled; use burning or other There is no secondary pollution when the method is processed; waste can be freely decomposed, which is also a few aspects of research in the packaging field in various countries, and its ultimate goal is to make the amount of packaging waste form a very small or minimal environmental pollution. In terms of food packaging, it is a major trend toward green and non-pollution. Green foods must have green packaging. This has become the new fashion of green food packaging in the new century and has become the mainstream of packaging. With regard to the current state of research in China, the following specific food packaging materials are under study or are about to be put into use:
a. Chitosan Edible Packaging Film: This edible packaging solves the conflict between food packaging waste and environmental protection. It is used in candy, preserved fruit, fresh cakes, fresh moon cakes and other aspects.
Production process and features: This packaging film uses shellfish extract chitosan as the main raw material, combines chitosan with lauric acid to produce a uniform edible film, and uses the packaging film to package peeled fruits and fruits. Tablets also have good preservation. The chitosan used in this packaging material is a processed product obtained by crushing shellfish shells. As it comes from nature, it has no pollution hazard to the environment, and it has the effect of supplementing trace elements to the human body after consumption. It can be described as a new type of environmentally friendly food packaging. But it also has its shortcomings, that is, raw material sources are limited and must be close to the coastal areas rich in shellfish.
b. Corn protein packaging film: It is suitable for high fat and high permeability food packaging with high fat content, and has a wide range of uses in fast food, fried potato food, moon cake production and other food companies. Corn protein packaging film is mainly used in the inner layer of fast food boxes and other foods with oil.
Production process and features: The film is a packaging material for the synthesis of paper and corn protein. It will not be penetrated by grease and will be boiled in a pot without changing its properties. Corn protein packaging film production of raw materials, suitable for large-scale production. At present, the packaging of fried foods (potato chips, puffed foods, flavored casseroles, dried meat, etc.) is directly packed in polyester plastic packaging. From the perspective of hygiene, the inner packaging film should be used, so the packaging material has broad prospects.
c. Soy protein edible packaging film: It is widely used for a variety of ready-to-eat foods.
Production process and features: Mainly uses the remaining material after soybean extract soybean meal to produce, raw material source is broad. In particular, the region rich in soybeans in the North is rich in raw materials. Since soybean residues from soybean meal are used, the price is extremely cheap. The packaging film can not only prevent oxygen from entering, but also maintain moisture, but also ensure the original taste. This kind of edible packaging film is widely used in the food production industry. Most of the sweets and cakes can be used. As the package has a fresh function and rich raw materials, it has an excellent industrial prospect.
d. Compound edible packaging film: It can be applied to the inner packaging of various ready-to-eat foods.
Production process and features: This kind of protein, fatty acid and starch composite edible packaging film combines different ratios of protein, fatty acid and starch to produce edible films with different physical properties. Because the product can adjust the softness and hardness of the packaging film according to different foods, different types of inner packagings can be formed and there should be a huge market in the food industry.
e. Degradable packaging materials: It is mainly difficult to recover waste packaging materials that are difficult to decompose, and it is difficult to recover them. Buried underground will destroy the soil structure, and incineration will produce toxic gases that cause air pollution.
Production process and features: A new double-expanded plant fiber packaging material made from plant starch and high-fiber filled formulations. The new packaging material is made of modified vegetable starch and high-fiber filling formula, and it is produced by low-temperature foaming granulation and high-temperature foaming technology under the action of high-efficiency compound foam, with moisture-proof, shock-resisting and pressure-resistance. It is characterized by good strength, light weight, low price, and so on. What's more important is that the material has a degradation rate of 78.4%. It is a new type of environmental protection packaging material.
3. Progress of foreign food green packaging In 1987, the United Nations Environment and Development Committee issued our common future declaration, which has set off a worldwide green wave centered on protecting the environment and saving resources. The green wave is a declaration of war on the environment and the destruction of resources, and it calls for the creation of a clean and fresh ecological environment for mankind to return to nature. As a new concept to effectively solve the packaging and environment, it emerged in the early 1980s and early 1990s. In foreign countries, this new concept is also known as “pollution-free packaging†or “friendship of the environment. China's packaging industry began in 1993 and uses the metaphor of environmental protection, collectively referred to as green packaging. The principles recognized by the world today for the development of green packaging are: 3RID principle: This is the highest requirement for green packaging based on a system engineering perspective based on the life cycle analysis method.From the current foreign reports, developed countries abroad have also made new breakthroughs in food packaging.
3.1 Germany has developed bio-packaging materials for corn to replace plastic packaging materials. A German farm has found through testing that the pellets made of corn flour, which are squeezed and expanded by a compressor, can effectively withstand shocks and pressures. Static electricity, anti-enzyme, moisture-free, will not pollute the environment. After repeated trials, they successfully developed a unique corn packaging material. The core of this technology is the processing technology and equipment. The corn flour preparation slurry must not only add water, but also add additives similar to vegetable oils. In addition, some grated grass roots should be added to increase the stability of the pellets. Extruding machine can make slurry heated, extruded and expanded into foam particles. Once formed, operators must strictly control extrusion time and temperature. The development of this corn bio-packaging material was strongly supported by the German Federal Environment Foundation and the Renewable Raw Materials Association. The results were in line with the demand for non-polluting packaging materials, and they soon found a market in the pharmaceutical and cosmetics industry product packaging. Biological packaging materials have a competitive advantage in price and application.
3.2 Canada's Teebaek Company has introduced a new type of octahedral aseptic packaging box. 70% of the packaging containers designed and produced are cardboard. Such containers are rigid and can effectively block light. A layer of polyethylene film is adhered to the inner and outer walls of the cardboard box, mainly to prevent leakage and repeated contamination. A 0.0065mm thick aluminum foil is also sandwiched between the inner wall film and the cardboard. This layer of aluminum foil can prevent air intrusion more effectively and prevent the fragrance of the juice from escaping. Due to the “sterile†treatment on the box wall, the juice has a long shelf life even without the use of a refrigerator or preservatives.
3.3 US Launches Green Food Containers Calcium Carbonate Packaging American manufacturer, Earth Shell, introduces Mac Donalde is finalizing a new environmentally friendly packaging material for its Bigmac. product. This package is mainly FDA approved Baltimore. It consists of calcium carbonate produced by a limestone factory that is blended with water to obtain natural starch PCW regenerated fiber (recycled from school milk boxes and juice boxes) and other additives and water in a potato grown for this purpose to form a paste. . This paste is placed in two hot model trays and made into a hinged top container similar to the process used to produce a waffle, converting the hot water into water vapor to expand the paste into a product within the mold.
The Japanese research department has developed a mineral concentrate absorbent paper bag made of calcium phosphate. The food is put into this kind of package. The green food can get nutrient supply from the mineral concentrate and it has a very good effect on preservation. In the United Kingdom and Germany, fresh-keeping bags made of oxygen-removing materials on the inner walls of containers and lids are used to “eat†excess oxygen in the containers through these oxygen-removing materials to achieve preservation and prolong the shelf life of fruits and vegetables.
4. Conclusion With the reduction of various resources on the earth, the survival of the environment has deteriorated, and the development of green and environmentally friendly packaging materials is imperative. It is incumbent upon us to protect the environment. Green packaging is a requirement for the development trend of international environmental protection. With the impact of environmental protection, green products have become the first choice for people to shop, and the packaging of green products must also meet the requirements of green. A company's products, whether sold domestically or exported to the international market, will encounter green packaging problems. At present, Chinese enterprises do not pay much attention to it. There are very few companies that use green packaging as a product market. We should take the opportunity of joining the WTO to vigorously develop the green packaging industry and make due contributions to the environmental protection of our country and the world.
Keywords: green food; food green packaging design According to experts, green foods will dominate the world market in the next 10 years, and good green packaging is the prevalence of green food among consumers. It is of great significance for shaping green food brands, ensuring the quality of green foods and maintaining the freshness of green foods. Green foods must have green packaging. This has become the new style of green food packaging in the new century and has become the mainstream of packaging. The government’s environmental protection department clearly stipulates that the “four-in-one†sign should be on the outer package of green food, namely, the green food sign, the text of green food, the code and the laser anti-counterfeit label, and the certification unit. After clear packaging, it will facilitate the identification of consumers.
1. The internal function of green packaging and food green packaging The basic function of green packaging is to protect the quality of green food, maintain the freshness of green food, and harmless to the ecological environment. One of the powerful marketing tools. Green food refers to the safe, high-quality, nutritious food that has been certified by a specialized agency to permit the use of green food labels. In addition to complying with the general standards for national food labels, the packaging of products must also meet the standards for green food packaging and labeling. The combination of green packaging and green food constitutes an organism that protects the environment. In the world environment that emphasizes environmental protection, the role of green packaging in sales is increasingly important, and it is increasingly being spurred by consumers from all countries. The important content of the green revolution in the new century is the “green packaging revolution†as an important weight for the new round of market competition. Good green packaging is almost a pass for green food among consumers. It shapes green foods into good brands, guarantees the quality of green foods, and becomes the key to the injection of green food into the international market. It is certain that green packaging products with a strong green atmosphere have strong vitality and competitiveness in the international market, and food packaging is most closely related to human beings. People touch it all the time and it affects people. all. Therefore, the green packaging system is of great significance. Developing green packaging is an effective way to promote sustainable development, and it is also an inevitable choice for environmental protection in the 21st century.
2. Selection of Green Packaging Materials for Food and Green Packaging Design for Food Green Packaging China's State Bureau of Technical Supervision has developed a standard that includes five types of products: pulp, paperboard coatings, plant fibers, starch, and biodegradable plastics. In today's situation, countries all over the world are raising "pollution-free, pollution-free" packaging products. These packaging materials require the use of materials, less waste, and can save a lot of resources; waste can be recycled; use burning or other There is no secondary pollution when the method is processed; waste can be freely decomposed, which is also a few aspects of research in the packaging field in various countries, and its ultimate goal is to make the amount of packaging waste form a very small or minimal environmental pollution. In terms of food packaging, it is a major trend toward green and non-pollution. Green foods must have green packaging. This has become the new fashion of green food packaging in the new century and has become the mainstream of packaging. With regard to the current state of research in China, the following specific food packaging materials are under study or are about to be put into use:
a. Chitosan Edible Packaging Film: This edible packaging solves the conflict between food packaging waste and environmental protection. It is used in candy, preserved fruit, fresh cakes, fresh moon cakes and other aspects.
Production process and features: This packaging film uses shellfish extract chitosan as the main raw material, combines chitosan with lauric acid to produce a uniform edible film, and uses the packaging film to package peeled fruits and fruits. Tablets also have good preservation. The chitosan used in this packaging material is a processed product obtained by crushing shellfish shells. As it comes from nature, it has no pollution hazard to the environment, and it has the effect of supplementing trace elements to the human body after consumption. It can be described as a new type of environmentally friendly food packaging. But it also has its shortcomings, that is, raw material sources are limited and must be close to the coastal areas rich in shellfish.
b. Corn protein packaging film: It is suitable for high fat and high permeability food packaging with high fat content, and has a wide range of uses in fast food, fried potato food, moon cake production and other food companies. Corn protein packaging film is mainly used in the inner layer of fast food boxes and other foods with oil.
Production process and features: The film is a packaging material for the synthesis of paper and corn protein. It will not be penetrated by grease and will be boiled in a pot without changing its properties. Corn protein packaging film production of raw materials, suitable for large-scale production. At present, the packaging of fried foods (potato chips, puffed foods, flavored casseroles, dried meat, etc.) is directly packed in polyester plastic packaging. From the perspective of hygiene, the inner packaging film should be used, so the packaging material has broad prospects.
c. Soy protein edible packaging film: It is widely used for a variety of ready-to-eat foods.
Production process and features: Mainly uses the remaining material after soybean extract soybean meal to produce, raw material source is broad. In particular, the region rich in soybeans in the North is rich in raw materials. Since soybean residues from soybean meal are used, the price is extremely cheap. The packaging film can not only prevent oxygen from entering, but also maintain moisture, but also ensure the original taste. This kind of edible packaging film is widely used in the food production industry. Most of the sweets and cakes can be used. As the package has a fresh function and rich raw materials, it has an excellent industrial prospect.
d. Compound edible packaging film: It can be applied to the inner packaging of various ready-to-eat foods.
Production process and features: This kind of protein, fatty acid and starch composite edible packaging film combines different ratios of protein, fatty acid and starch to produce edible films with different physical properties. Because the product can adjust the softness and hardness of the packaging film according to different foods, different types of inner packagings can be formed and there should be a huge market in the food industry.
e. Degradable packaging materials: It is mainly difficult to recover waste packaging materials that are difficult to decompose, and it is difficult to recover them. Buried underground will destroy the soil structure, and incineration will produce toxic gases that cause air pollution.
Production process and features: A new double-expanded plant fiber packaging material made from plant starch and high-fiber filled formulations. The new packaging material is made of modified vegetable starch and high-fiber filling formula, and it is produced by low-temperature foaming granulation and high-temperature foaming technology under the action of high-efficiency compound foam, with moisture-proof, shock-resisting and pressure-resistance. It is characterized by good strength, light weight, low price, and so on. What's more important is that the material has a degradation rate of 78.4%. It is a new type of environmental protection packaging material.
3. Progress of foreign food green packaging In 1987, the United Nations Environment and Development Committee issued our common future declaration, which has set off a worldwide green wave centered on protecting the environment and saving resources. The green wave is a declaration of war on the environment and the destruction of resources, and it calls for the creation of a clean and fresh ecological environment for mankind to return to nature. As a new concept to effectively solve the packaging and environment, it emerged in the early 1980s and early 1990s. In foreign countries, this new concept is also known as “pollution-free packaging†or “friendship of the environment. China's packaging industry began in 1993 and uses the metaphor of environmental protection, collectively referred to as green packaging. The principles recognized by the world today for the development of green packaging are: 3RID principle: This is the highest requirement for green packaging based on a system engineering perspective based on the life cycle analysis method.From the current foreign reports, developed countries abroad have also made new breakthroughs in food packaging.
3.1 Germany has developed bio-packaging materials for corn to replace plastic packaging materials. A German farm has found through testing that the pellets made of corn flour, which are squeezed and expanded by a compressor, can effectively withstand shocks and pressures. Static electricity, anti-enzyme, moisture-free, will not pollute the environment. After repeated trials, they successfully developed a unique corn packaging material. The core of this technology is the processing technology and equipment. The corn flour preparation slurry must not only add water, but also add additives similar to vegetable oils. In addition, some grated grass roots should be added to increase the stability of the pellets. Extruding machine can make slurry heated, extruded and expanded into foam particles. Once formed, operators must strictly control extrusion time and temperature. The development of this corn bio-packaging material was strongly supported by the German Federal Environment Foundation and the Renewable Raw Materials Association. The results were in line with the demand for non-polluting packaging materials, and they soon found a market in the pharmaceutical and cosmetics industry product packaging. Biological packaging materials have a competitive advantage in price and application.
3.2 Canada's Teebaek Company has introduced a new type of octahedral aseptic packaging box. 70% of the packaging containers designed and produced are cardboard. Such containers are rigid and can effectively block light. A layer of polyethylene film is adhered to the inner and outer walls of the cardboard box, mainly to prevent leakage and repeated contamination. A 0.0065mm thick aluminum foil is also sandwiched between the inner wall film and the cardboard. This layer of aluminum foil can prevent air intrusion more effectively and prevent the fragrance of the juice from escaping. Due to the “sterile†treatment on the box wall, the juice has a long shelf life even without the use of a refrigerator or preservatives.
3.3 US Launches Green Food Containers Calcium Carbonate Packaging American manufacturer, Earth Shell, introduces Mac Donalde is finalizing a new environmentally friendly packaging material for its Bigmac. product. This package is mainly FDA approved Baltimore. It consists of calcium carbonate produced by a limestone factory that is blended with water to obtain natural starch PCW regenerated fiber (recycled from school milk boxes and juice boxes) and other additives and water in a potato grown for this purpose to form a paste. . This paste is placed in two hot model trays and made into a hinged top container similar to the process used to produce a waffle, converting the hot water into water vapor to expand the paste into a product within the mold.
The Japanese research department has developed a mineral concentrate absorbent paper bag made of calcium phosphate. The food is put into this kind of package. The green food can get nutrient supply from the mineral concentrate and it has a very good effect on preservation. In the United Kingdom and Germany, fresh-keeping bags made of oxygen-removing materials on the inner walls of containers and lids are used to “eat†excess oxygen in the containers through these oxygen-removing materials to achieve preservation and prolong the shelf life of fruits and vegetables.
4. Conclusion With the reduction of various resources on the earth, the survival of the environment has deteriorated, and the development of green and environmentally friendly packaging materials is imperative. It is incumbent upon us to protect the environment. Green packaging is a requirement for the development trend of international environmental protection. With the impact of environmental protection, green products have become the first choice for people to shop, and the packaging of green products must also meet the requirements of green. A company's products, whether sold domestically or exported to the international market, will encounter green packaging problems. At present, Chinese enterprises do not pay much attention to it. There are very few companies that use green packaging as a product market. We should take the opportunity of joining the WTO to vigorously develop the green packaging industry and make due contributions to the environmental protection of our country and the world.
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