With the development of the social economy and science and technology, material living standards improve, people's health consciousness has undergone major changes, hygiene and health requirements are rising, eat from the original has been fed into , eat healthy, safety and health. In addition to consumer demands for food nutrition, health care , with color, smell , taste and shape , but the packaging also greatly affect the consumer's purchase. So about food storage , packaging and transportation of new materials , new technologies , new processes have emerged , the food has a better antibacterial, antifungal and preservation of function , to meet the consumer demand for food higher .Development of food packaging materials and storage technologyWith industrial development and the birth of plastic products, because of their cheap, stable, excellent , widely used in food packaging and preservation . However, the use of plastic packaging after abandoned to rot easily broken down in the environment , may result in " white " pollution , and some plastic food packaging is easy to produce harmful gases and odors , the human body also has some toxic effects. Food production in the past, candy packaging is used in rice paper , toughness and tensile strengthslips poor, high crushing ratio and costs, and all kinds of preserved fruit, packaging boxes wholesale preserves, pastries packaging mostly inedible , opaque, neither beautiful too uneconomical. To make the candy, candied fruits , pastries and other foods have a both beautiful and economical, safe , edible packaging materials, paper or other new edible packaging emerged.In recent years , food researchers study abroad gradually focus on edible packaging film , developed many different functions edible packaging film. Such as soy protein edible packaging film , edible chitosan membrane proteins , fatty acids, starch composite edible packaging film , water protein film to thermoform trays Okara edible wrapping paper as raw material , edible packaging containers , packaging films corn protein You paper coating slips , shellac or clamshell blister protein coating wrapping or container slips You , corn starch, sodium alginate or chitosan composite packaging film You slips of paper , wrapping paper and other bio- plastic coating .Edible edible films for food packaging film and its packaged food can be eaten along with some nutritional value , and some can be the body to digest , and some edible film itself also has health effects on the human body . It can be used for small food packaging, food packaging monomers direct contact with food , to prevent re- contamination of food is possible .Edible film production can add some flavoring agents, coloring agents , nutritional supplements , etc., to improve food quality and sensory properties , and enhance people's appetite. And edible film can be very handy as a food flavoring agent , leavening agents and food quality micro- coated pigment composition , and effective control add these formulations , release and stability. Edible films also can be used as a preservative , antioxidant carrier, in which the control surface of the food inside the food into the diffusion rate , help to reduce the amount of these additives . Edible films can also be added to the internal interface of heterogeneous foods to prevent moisture migration between food components and food spoilage caused by the solute , or affect food quality . The edible film may also be used as a microwave , baking, frying foods coated film. Meanwhile biodegradable edible film as a film , if not eaten , can still be blister sealing degraded by microorganisms in the environment , will not cause environmental pollution. Today, the United States, Japan and other countries have developed a number of edible and biodegradable packaging films films . China has also developed a sugar - because bilayer membrane edible edible packaging film --- pullulan .Fruit and vegetable food storage technology is second only to produce food in the world , while China is the largest producer of fruits and vegetables , long history of cultivation , is the birthplace of color box packaging many fruits and vegetables in the world , known as the " mother of gardens ." Because fruits and vegetables are rich in carbohydrates, vitamins , inorganic salts , proteins and fats , is a very important source of nutrition for a class , but it has special features antioxidant plastic packaging boxes wholesale activity, in vivo defensive , anti- allergic , blood pressure regulation in humans , etc. . However , fruit and vegetable production is often affected by natural constraints, has obvious seasonal and regional. According to incomplete statistics , as fresh fruits and vegetables , packaging and improper handling after harvesting, storage , transport, marketing, preservation technology is poor, a serious shortage of cold storage facilities , marketing and low capacity factors , resulting in the loss of the fruit and vegetable picking up 20% -30 % the FAO index of only 5%. After joining WT0, our fruit and vegetable cultivation , production, processing system has been a great shock and challenge, so the development of newer, better fruit and vegetable products, packaging materials and packaging technology become an issue of concern to scientific researchers .In recent years, a variety of fruits and vegetables at home and abroad developed non-chemical preservation techniques, such as : cold preservation technology, controlled atmosphere storage method , vacuum preservation technique , radiation treatment Storage Technology , Storage Technology electrostatic field treatment , storage and preservation of film technology , Storage Technology ozone treatment , storage and preservation of biological control techniques , gene regulation preservation techniques , natural preservative Storage technology. After these new technologies processed fruits and vegetables not only keep the freshness and quality of fruits and vegetables themselves , but also inhibit the growth of microorganisms and their physiological activity of fruits and vegetables , people really achieve health requirements .1997 Baotou, Inner Mongolia Institute of Agricultural Technology launched the first of a new 2000 -ton industrialized world decompression application technology keeping storage systems and devices. Radiation preservation in the field of preservation is cutting-edge technology , China now has more than 100 food radiators . In Shanghai , Sichuan, Beijing , Jilin, Tianjin and other places have achieved some results , and in Shanghai built the country's largest base of radiation .Trends food storage , packaging, transportation technologyContemporary thermoforming packaging edible packaging is a major trend in the world of new technology development in the food industry , which has been involved in a wide range of applications, sausage , fruit wax, sugar-coated , wafers , ice -coated tablets clothing and so on . Because of edible packaging versatile, environmentally friendly, easily obtained , for human consumption, thus competing developed countries , new products, new technologies are emerging , and its development prospects. Vigorously develop new , easy processing , recycling and degradation of the material , the material backward , increasing concern about environmental protection , use non-polluting , renewable materials , not only to consider the quality of packaging , functionality, cost , etc., but also to consider from materials to the processing, use and disposal of the whole process of environmental impact to the material , to maximize the use of energy , the impact of packaging on the environment to a minimum or zero pollution . Currently , there are two multi-purpose research trends edible container , one starch + protein material , two cellulose + protein material.Prospects for development of new materials, foodWith the development of modern science and technology, people on food health, safety , hygiene increasingly demanding. Especially in China, as a new member WT0 of trade between the countries in the world will increasingly develop food storage, packaging and transportation process new materials, new technologies, new processes has become a key factor affecting the competitiveness of the food industry .It is anticipated that with the continuous progress of food materials, processing technology, process in-depth study of science and technology , consumer health , nutrition, health knowledge, rich, enhanced efforts to increase the enterprise market to import more and more food new packaging materials, processing of new technologies, new processes will be developed and widely used. n

Posted by: plasticpackaging at 02:30 AM | No Comments | Add Comment
Post contains 1372 words, total size 9 kb.