TABLE 7.
Proteolysis sensitivity of bacteriocins produced by Lactobacillus gasseri
| Protease | Residual activity of bacteriocin, AU/ml (rate, %)a |
||
|---|---|---|---|
| GA | GT | GS | |
| None | 985 | 31,508 | 246 |
| Pepsin | 492 (50) | 492 (1.6) | NDb |
| Trypsin | 62 (6.3) | ND | ND |
| Alpha-chymotrypsin | 246 (25) | ND | ND |
| Proteinase K | ND | ND | ND |
a
n > 3. Indicator, L. delbrueckii subsp. bulgaricus JCM 1002T(pSYE2). GA, gassericin A (CFS of L. gasseri LA39); GT, gassericin T (CFS of L. gasseri LA158); GS, gassericin S (CFS of L. gasseri LA327).
b
ND, not detected.