Antimicrobial and antioxidant activity and total phenolic content in mango peel and kernelThe industrial processing of mangoes generates high amount of agroindustrial waste in the form of peel and kernel, which, without feasible application, is eventually discharged directly into the environment. These residues are rich in bioactive compounds, widely recognized for their health-promoting activity and technological applications. The aim of this study was to evaluate the antimicrobial activity and phenolic composition of peel (FC) and kernel (FA) extracts from mango of variety 'Tommy Atkins' . Total phenolic compounds of the samples ranged between 3123 and 6644 mg of catequin/ 100g. The extracts FC and FA showed good antimicrobial activity against bacteria Escherichia coli, Salmonella sp., Pseudomonas aeruginosa and Staphylococcus aureus as determined by the disc diffusion method. The results demonstrated that the antioxidant action of FC and FA increases with increasing concentrations, reaching a maximum value of 88% (FC). In all concentrations tested, the FC extracts showed antioxidant activity significantly higher than the respective concentrations of FA. The results suggest potential practical applications of mango residues as sources of phenolic compounds, antimicrobial and antioxidant agents and should be exploited by food industry.
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