Banana starch nanocomposite films reinforced with nanocellulose

Owing to the increasing global pollution due to the use of conventional plastic materials, biodegradable films and sheets have been given prominent importance owing to their efficiency in replacing traditional plastic materials. In the recent times, due to globalization and industrialization, the minimization of the use of synthetic petroleum-based materials has been in practice by the global community, and increase in the use of natural materials like biomass waste in place of traditional materials promoting the green and sustainable technology development. Such production of alternative biomaterials development from the lignocellulosic fiber-reinforced composite films and laminates has been seriously investigated by engineers, technologists, and materialists owing to their sustainability, renewability, low toxicity, and abundantly available. Banana is one among the largely consumed tropical crop globally which is due to the quantity of cultivation and the availability of calorific values in the fruit. It is also a fruit which is potentially rich in starch content with more than 65¯ of starch. This banana starch can be considered as a potential material for the manufacturing of coating material, edible sheet, food preservation and packaging owing to its innocuous, less cost, and biodegradability. The application of banana starch is dictated by the functional, structural and physicochemical properties of the developed material. But an unmodified native banana starch may not be characterized with all the necessary properties for any customized application. In order to widen the application band of the banana starch, it has to be modified by using enzymes, chemical, and physical methods. This review comprehensively deals with the extraction and synthesis of banana starch from various sources, their modification, properties of the banana starch and its characterization. Some aspects regarding the hybridization of the banana starch with nanoparticles has also been given.

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