Fungi and their derivatives such as chitosan able to influence the content of ores highlight the complex and dynamic nature of mineral biogeochemistry. Understanding the role of fungi in ore extraction can help to develop more sustainable and efficient mining practices in the future. Chitosan is a biopolymer is naturally originated product that can be derived from the exoskeleton of crustaceans and insects, respectively, and can also be obtained from fungal sources. Chitosan is a versatile hydrophilic polysaccharide derived from chitin. The extraction and characterization of this biopolymer from fungal isolates involves a series of chemical and physical processes to purify and modify the material. The study of the productive applications of chitosan encompasses a wide range of fields, including agriculture, medicine, and environmental management. This biopolymer has been found to have various properties such as biocompatibility, biodegradability, and antimicrobial activity, making it useful in various industries and applications. The extraction and characterization of chitosan from fungal sources and the study of their productive applications is an ongoing area of research with the potential for significant technological advancements and contributions to sustainability. Finally, applications of chitosan-based biomaterials, such as antifungal effects of were estimated by plate well diffusion method against Aspergillus ficuum, Aspergillus fumigatus and Fusarium oxysporum.
Key words: Aspergillus flavus, Chitosan, Biopolymer, Extraction, Antifungal activity
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