Biosurfactant-Producing Lactobacilli: Screening, Production Profiles, and Effect of Medium Composition

Table 1

Composition of the different culture media prepared replacing the nitrogen sources of MRS-Lac medium by ammonium. “D” corresponds to the standard MRS-Lac medium.

Composition	Medium
	A	B	C	D	E	F	G	H	I
Peptone (gL^−1)	10	—	—	10	10	10	—	—	10
Meat Extract (gL^−1)	—	8	—	8	8	—	8	—	8
Yeast Extract (gL^−1)	—	—	4	4	—	4	4	—	4
Ammonium 25% (mL l^−1)	7.4	8.9	12.1	—	2.1	5.3	6.8	14.2	14.2