Purification and genetic characterization of gassericin E, a novel co-culture inducible bacteriocin from Lactobacillus gasseri EV1461 isolated from the vagina of a healthy woman

Table 4 Conditional bacteriocin production of L. gasseri EV1461

Culture	Activity (BU/ml)^a
L. gasseri EV1461 (Bac-)^b	0–160
L. gasseri EV1461 (Bac+)^c	1280
L. gasseri EV1461 (Bac-)+ CFS EV1461 (Bac+)^d	2560
L. gasseri EV1461 (Bac-)+ P. avium H1544	1280
L. gasseri EV1461 (Bac-)+ L. plantarum CE3	1280
L. gasseri EV1461 (Bac-)+ L. pentosus 128/2	2560
L. gasseri EV1461 (Bac-)+ L. gasseri Lc9	1280
P. avium H1544	0
L. plantarum CE3	0
L. pentosus 128/2	0
L. gasseri Lc9	0

^aBacteriocin units per mililiter
^bBacteriocin non-producing L. gasseri EV1461 (<10⁵ UFC/ml)
^cBacteriocin producing L. gasseri EV1461 (>10⁵ UFC/ml)
^dCFS: cell free supernatant from a Bac+ L. gasseri EV1461 culture containing 1280 BU/ml

ISSN: 1471-2180