A perspective towards sustainable and economically viable approach of waste biorefineries through lignin valorization
摘要
Biowaste is the cheapest and the most sustainable resource generated from agricultural, industrial, and municipal waste streams. A major portion of biowaste is composed of lignin; however, it remained unused due to its complex and rigid structure. With ever increasing demand for energy and biochemical, the utility of lignin came to the forefront. As a result, various approaches are followed for lignin valorization for generation of numerous valuable products including vanillin, syringaldehyde, lignosulfonates, and lignophenols. All the lignin-based products have vast applicability in pharmaceuticals, dye, and food industries. The present study delineates about the source, extraction methods, and the bioproducts generated from lignin.