Phylogenetic Framework and Biosurfactant Gene Expression Analysis of Marine Bacillus spp. of Eastern Coastal Plain of Tamil Nadu

Table 4

Chemical composition of biosurfactants obtained from marine isolates.

Marine isolates	Lipid content (µg/mL)	Protein content (µg/mL)	Carbohydrate content (µg/mL)	Haemolytic activity	Antimicrobial activity	Ionic character
Microsurf-1	17.5	103.3	8.61	Nonhaemolytic	No activity	Nonionic
Microsurf-2	7.59	80.28	2.65	Nonhaemolytic	No activity	Nonionic
Microsurf-3	69.1	16.73	0.72	Nonhaemolytic	No activity	Nonionic
Microsurf-4	17.78	20.55	7.19	Nonhaemolytic	No activity	Nonionic
Microsurf-5	9.7	5.39	0.235	Nonhaemolytic	No activity	Nonionic
Standard (surfactin)	—	—	—	Haemolytic	Broad spectrum	Anionic