Table 3. Enzyme activities of LAB strains measured with API ZYM kit

Enzyme		L. plantarum CH9	L. plantarum SU18
1	Control	-	-
2	Alkaline phosphatase	++	++
3	Esterase (C 4)	+	+
4	Esterase lipase (C 8)	+	++
5	Lipase (C 14)	-	-
6	Leucine arylamidase	+	+
7	Valine arylamidase	+	+
8	Cystine arylamidase	++	++
9	Trypsin	-	+
10	α-Chymotrypsin	+	-
11	Acid phosphatase	++	++
12	Naphthol-AS-phosphohydrolase	++	++
13	α-Galactosidase	+	+
14	β-Galactosidase	++	++
15	β-Glucuronidase	-	-
16	α-Glucosidase	-	+
17	β-Glucosidase	++	++
18	N-Acetyl-β-glucosaminidase	++	+
19	α-Mannosidase	-	-
20	α-Fucosidase	+	-

-, non; +, weak; ++, nomal; +++, strong.