Essay On Biodegradable Packaging
Edible and Biodegradable packing Edible and biodegradable packaging’s are produced from agricultural origin macromolecules provide a supplementary and sometimes essential means to control physiological, microbiological, and physicochemical changes in food products Edible packaging:- It consists of thin layers of coating or placed on or between food components to protect the food. Its purpose is to inhibit integration of moisture, oxygen, carbon dioxide and aroma etc. Edible films thickness is 254µm. Advantages:- They can be consumed with the product, no disposal, reduction of environmental pollution, enhance properties of packed food, supplement the nutritional value and they can be conveniently used. Edible …show more content…
It should be undetectable. It must adhere to the food, but not stick to the packaging materials. It should melt in mouth, but not in hands. Drawbacks of edible packaging: More expensive than synthetic packaging and poor mechanical properties. Biodegradable packaging materials: These are the packaging materials that have the ability to break down safely and quickly into the raw material of nature and disappear into the environment. Biobased food packaging materials are materials derived from renewable sources. Classification of biodegradable packaging materials: According to their method of production Category 1. Polymers which are extracted directly from the sources such as starch, cellulose, and chitin. Category 2. Polymers produced from chemical synthesis from monomers such as polylactic acid , bio polyethylene and ethylene terephthalate. Category 3. Natural or genetically modified organisms such as polyhydroxyalkanoates, bacterial cellulose produce this type polymers. Category 4. Polymers from petrochemical based monomers. Poly caprolactone, poly glycolic acid, poly butylene adipate-co-tetraphthalate, poly butylene succinate and copolymers and poly propylene carbonate are this
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