LAUSR

Various bioactive agrowastes derived phenolic compounds (APCs) obtained from agrowastes lignin hydrolyzed methods and evaluated for their potential antioxidant, antimicrobial and anti-quorum activities with special reference to food borne pathogens. Half-maximal inhibitory concentrations (IC 50 ) of isolated phenolic compounds against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals have been found in the range of 53–84 µg/mL, whereas samples obtained by hydrolysis in absence of acid have shown the (IC 50 ) values of ~ 120 µg/mL. The APCs have shown significant antimicrobial activity against Gram positive ( Bacillus subtilis ) as compared to Gram negative ( Pseudomonas aeruginosa ) bacteria. The bacterial killing as well as anti-quorum sensing activity (inhibiting the violacein production) has been observed against Chromobacterium violaceum . Flow cytometric analysis has been also confirmed the cell death occurs in Gram positive and Gram negative bacteria. The present study suggests that APCs derived from agro-wastes can serve as an important source of natural antioxidant and antimicrobial agents. The natural ingredients will be considered as emerging materials for food packaging. Graphical Abstract