الفهرس | Only 14 pages are availabe for public view |
Abstract Nowadays, the disposal of waste from human use and environmentally toxic substances has become an important issue. Therefore, it is important to use agricultural and environmental wastes to produce many high-value products by microorganisms. Nanocellulose is one of the high-value products resulting from the transformation of cellulosic materials, including cellulosic agricultural waste. Nanocellulose is used in many fields such as biomedical products, wood adhesives, batteries, catalysts, electroactive polymers, fibers, textiles, food packaging, antimicrobial films, paper products, cosmetics, cement and many other uses. In this study, nanocellulose was produced from cellulosic agricultural wastes such as rice straw and cotton fibers by some cellulolytic fungi. Tests were conducted to indicate the formation of nanocellulose by measuring the endocellulase efficiency, and measuring the turbidity ratio. Endocellulase efficiency expresses the partial decomposition of cellulose, while the turbidity indicates the presence of nanoparticles in the solution. In addition, the optimal conditions for maximizing nanocellulose production were performed. The produced nanocellulose was subjected Transmission Electron Microscope (TEM) and particle size distribution analysis to determine its characteristics. The obtained results can be summarized as follow |