Newly Identified Phenolic Compounds from Different Plant Families

In plants among the different phytochemicals, phenolic and polyphenolic compound-based research has gained rapid momentum during the present decade. Even though the phenolic compounds are not required in primary processes such as growth and development of a plant, these compounds which are considered as secondary metabolites have gained a lot of attention of researchers across the world for their role in diversified functions of a plant system. Majorly phenolic compound-based research is being carried out to understand the role of various classes of phenols right from their role in adapting a plant species to different environments which encompasses biotic and abiotic factors to understanding their role in reproduction, in interaction with other biomolecules, and in specified function of every individual phenolic compound. More advanced research is also being carried to know the action of phenolic compounds on the enzymes involved in the epigenetic regulation of gene expression. From the 1970s, the plant phenolic-based research has gained importance, and researchers have started identifying the new phenolic compounds from several plant species. Now, through this book chapter, we put together the newly identified phenolic compounds of the present decade (i.e., 2010–April 2019) which were identified from different plant families.