Table 1. Summary of Production and Extraction Conditions of the Biosurfactant Extracts under Study.

biosurfactant	BS1	BS2	BS3	BS4	BS5
type of biosurfactant	extracellular	extracellular	extracellular	cell-bound	cell-bound
fermentation process	spontaneous	spontaneous	controlled	controlled	controlled
nutritional medium	CSW	CSW	TSB	TSB	MRS broth
microorganism	lactic acid bacteria and other Bacilli strains associated with the steeping process	lactic acid bacteria and other Bacilli strains associated with the steeping process	Bacillus strain isolated from CSW	Bacillus strain isolated from CSW	L. pentosus
extraction process	chloroform	ethyl acetate	chloroform	PBSa	PBSa

^aBuffer phosphate saline.