An updated comprehensive review on waste valorization: Informetric analysis, current insights and future perspectives on cereal waste and byproduct utilization for sustainable industrial applications

Abstract

Advanced waste recovery and E-waste management are key strategic sustainable solutions to minimizing cereal wastes. • Cereals are important food crops that are processed into various products generating significant waste annually. • The wastes negatively impact the environment and cause environmental pollution. • Nutritional and Biochemical profiling of cereal wastes and byproducts reduces landfill wastes, saves energy, and creates jobs. • Various cereal wastes and byproducts are used for sustainable industrial ingredients. • These ingredients are used in foods, pharmaceuticals, and nutraceutical products. Cereal crops have been integral to human sustenance since the Neolithic era which have earned significant attention as staple foods. The year-round cultivation and consumption of cereal-based products have led to the escalating global production of cereals and a rise in industrial processing which results in significant waste generation. These wastes contain high-value nutrients such as carbohydrates, proteins, and lipids. Due to their dense nutritional values, there is a need to link the diverse array of nutrients in major cereal wastes and by-products to their functionalities and relevant industrial applications. This will not only promote sustainable waste management but also economic stability. Existing studies on cereal research were investigated using informetric analysis to provide a quantitative outlook and identify key trends, research priorities, and gaps in cereal studies. Overall, this review presents a comprehensive update on the past, present, and future of sustainable cereal waste valorization, highlighting previous studies and providing insights for future exploration of these biowastes.