Millet starch-based film: A review

Abstract

BackgroundThere has been extensively growing interest in millets due to their health benefits and critical role as a sustainable grain. Starches extracted from different grains, legumes, and vegetables are used for the fabrication of films. Millets are an excellent source of starch which can be an excellent base for film formation. Scope and approachThis review explores the extensive field of different types of millets, starch extraction processes from millets, film fabrication methods, and the bioactivity of these novel films. Maintaining the purity of the starch and maximizing outputs are crucial while extracting starch from millets. A variety of extraction techniques, including enzymatic hydrolysis and wet milling, are discussed highlighting the benefits and drawbacks of each. The subsequent section on film preparation describes various methods, such as casting and extrusion, and emphasizes how processing parameters affect the attributes of the film, such as thickness, transparency, and mechanical strength. A thorough examination of the bioactivity of films made from millet starch clarifies the possible uses of these materials in the biomedical, pharmaceutical, and food packaging industries. Examining the antimicrobial, antioxidant, and barrier qualities in detail demonstrates how versatile they are in maintaining and improving the quality of packaged items. Key findings and conclusionsMillet-starch based films are a promising answer to the growing need for environmentally friendly packaging materials.