جستجوی مقالات مرتبط با کلیدواژه « روش های تهیه بسته بندی » در نشریات گروه « مکانیک »

Synthetic plastics are very versatile, convenient and abundant materials that can be used to create a variety of products, but their widespread use causes increasing damage to the planet and leads to the wastage of natural resources. Hence, researchers have made significant efforts to develop more biodegradable and environmentally friendly materials. Eco friendly and cost-effective renewable polysaccharides and their composites meet the requirements of green chemistry, and thus have been widely used for biodegradable food packaging applications. Renewable polysaccharides include cellulose, nanocellulose, hemicellulose, chitosan, starch, pectin, etc. In this review, the importance, application, performance, properties and characteristics of starch and cellulose and its derivatives for food packaging are discussed. Moreover, traditional and modern techniques for processing biodegradable materials based on starch and cellulose such as solution casting, extrusion, reactive extrusion, electrospinning and layer-by-layer self-assembly have been investigated and some additives have been examined to improve the performance and compensate the weak points.