Introduction should include the details about known anticancer properties of bacteriocins like recently published https://link.springer.com/article/10.1007/s00253-018-9420-8 Line 232. Please add a reference for sulforhodamine B (SRB) protein assay. Figure4. Please make the tree again as branches explained in the text is not clearly visible in the figure. Figure8. Errors bars are missing. How many times did authors perform the assay? Please add the details in the figure legend. Authors should add the details about all cancer cell lines (at least their origin or full form) in a table.