Gallic acid and its derivatives have a large number of applications in various fields of science. In nature, these compounds are widely distributed in plants and fruits, and thus they are being used as food stuffs, preservatives, etc. directly or indirectly by human community. They have also been implicated as anticarcinogenic, antimicrobial, antimutagenic, antiangiogenic and anti-inflammatory agents besides their use in treating critical diseases like depression, cancer, microbial infections, lipid-related diseases, etc. Herein, an attempt has been made to summarize the important uses of gallic acid derivatives which have extensively been disclosed particularly in various patents. This review would certainly create a great interest of the scientific community toward the developments and uses of gallic acid based compounds in the future.

Gallic acid and its derivatives not only exhibit excellent antioxidant, anticarcinogenic, antimutagenic, antimicrobial properties but also provide protection to the cells against oxidative stress. Gallic acid (3, 4, 5-trihydroxybenzoic acid), a low molecular triphenolic compound emerged as an efficient apoptosis inducing agent. The antimicrobial and other biological properties of gallic acid and its derivatives seemed to be linked with the hydrolysis of ester linkage between gallic acid and polyols like tannins hydrolyzed after ripening of many edible fruits. Gallic acid serves a natural defense mechanism against microbial infections and modulation of immune responses. The current review updates us with the diverse roles played by gallic acid, its antioxidant potential, action mechanism and more importantly the diverse array of applications in therapeutic and pharmaceutical areas.

Background: Among the various phenolics metabolites, ferulic acid is considered as the promising mitigating, restorative and antioxidant agent. Ferulic acid is one of the most commonly found natural products in vegetables, for example, tomatoes, sweet corn, and in rice grain. Phytochemicals are utilized in the treatment of human ailments and these are derived from the dietary compounds. Objective: The present review widely argued the calming restorative capability of ferulic acid alongside the scientific evidences and its proposed mechanism for activity. Furthermore, we provided the main practical points for the use of ferulic acid in oxidative damages during various diseases. Additionally, the relevant patents on ferulic acid with various therapeutic potential has been discussed. Methods: One hundred and twenty references have been cited in the present review article. The cited references were found to be suitable and described the therapeutic application of ferulic acid thoroughly. Conclusion: Ferulic acids are known to contrarily down-manage an assortment of extracellular and intrcelullular molecular targets related to infection movement. Various patents on ferulic acid based moieties have been accounted for from 2018. The ferulic acids have a wide scope of impacts against different infections like malignant growth, diabetes, cardiovascular and neurodegenerative diseases. The current review deals with the antioxidant property of ferulic acid and the recent patent describes the role of ferulic acid against human diseases.