Abbreviation	Definition
CFS	Cell-free supernatant
DPPH	2,2-diphenyl-1-picrylhydrazyl
EFSA	European Food Safety Authority
GI	Gastrointestinal
HAC	Hierarchical ascending classification
IAA	Indole-3-acetic acid
LAB	Lactic acid bacteria
MATH	Microbial adhesion to hydrocarbons
MRS	de Man, Rogosa and Sharpe
NCBI	National Center for Biotechnology Information
PCA	Principal component analysis
PGPR/PGP	Plant growth-promoting rhizobacteria/plant growth promotion
SU	Siderophore unit
SD	Standard deviation