Table 1.

Search strategy equations for searching articles in databases that answer the question: what are the antibacterial mechanisms of action of trypsin inhibitor-type peptides or proteins?

Data base	Search equation
PubMed	Mechanism action AND peptide antibacterial AND trypsin inhibitor AND bacterial AND in vivo AND in vitro
SCIENCE DIRECT Used filter: Research articles	(Mechanism action) AND peptide antibacterial AND trypsin inhibitor AND in vivo AND in vitro
Scopus	Trypsin Inhibitor AND mechanism Antibacterial
EMBASE	('mechanism'/exp OR mechanism) AND ('trypsin inhibitor'/exp OR 'trypsin inhibitor') AND ('peptide antimicrobial' OR ('peptide'/exp OR peptide) AND ('antimicrobial'/exp OR antimicrobial) AND ('antibacterial activity'/exp OR 'antibacterial activity')
Web of Science	Mechanism AND trypsin inhibitor AND peptide antimicrobial AND bacterial
Virtual Health Library (VHL)	Mechanism antibacterial AND trypsin inhibitor AND bacterial AND in vivo AND in vitro