Table 3. Measurement of proteolytic activity of the isolated strains at 24, 48, and 72 h

Sample	Species clear zone surrounding the disc (mm)
	24 h	48 h	72 h
LA-5	11	19	28.8
DKGF9	13	24	36
DKGF1	21	32.4	41.6
DKGF8	12	25.3	38.2
DK207	12	22.5	33.5
DK211	13	24.7	27.6

All strains used 11 mm cork borer.
+, 0<diameter<10; ++, 10<diameter<15; +++, 15<diameter.
LA-5, Commercial strain: Lactobacillus acidophilus LA-5; DKGF9, Lactobacillus plantarum; DKGF1, Lactobacillus paracasei; DKGF8, DK207, DK211, Lactobacillus casei.