Effect of Different Carbon Sources on Biosurfactants’ Production by Three Strains of Lactobacillus spp.

Table 2

Emulsification index of supernatants obtained with sugar cane molasses or glycerol as substrates.

Substrates	Emulsification index (%)
	Biosurfactants producing strains			Control
	Lb. plantarum; G88	Lb. delbrueckii; N2	Lb. cellobiosus; TM1	Culture medium	H2O	SDS 1%; (w/v)
Molasses	49.89 ± 5.28	81.00 ± 1.14	63.50 ± 4.94	21.85 ± 1.75	11.50 ± 2.12	92.25 ± 1.21
Glycerol	41.81 ± 2.56	61.81 ± 2.56	53.28 ± 7.91	19.31 ± 2.40	11.50 ± 2.12	92.25 ± 1.21

Values are means ± standard deviation; ; a, b, c, and so on indicated column comparison; A, B, C, and so on indicated line comparison; values followed by the same lowercase letter in superscript on the same line or by the same capital letter in superscript on the same column are not significantly different () according to Duncan’s multiple range test. The emulsion has been obtained by mixing supernatant of culture with refined palm oil.