Converting Ligin from Agricultural Wastes into Vanillic Acid by Cupriavidus Necator

Nowadays, with the problems of energy shortage, environmental pollution and the greenhouse effect getting worse day by day, as well as the rising awareness of environmental protection in the general public, resulting in a strong interest in sustainable energy and renewable materials. Agricultural waste of lignocellulose has the advantage to not competing with food and creating opportunities for agricultural waste utilization and increasing added value. Among them, lignocellulose contains a lot of cellulose, hemicellulose and lignin, which lignin is usually regarded as "waste" and throw out. Lignin is considered to be the most important source of renewable aromatic compounds. The present study focuses on the extraction of lignin and the use of biosynthetic methods to produce valuable compounds by exploiting the development of suitable microorganisms to degrade lignin and then convert available and high-value chemicals.