Table 9. Physiological and biochemical characteristics of isolates.

Types of test	Characteristics of isolates
	LT001	LT002	LT003	LT004	LT005	LT006	LT007	LT008	LT009	LT010	LT015
Starch	+	+	+	+	+	+	+	+	+	+	+
Gelatin	+	+	+	+	+	-	-	-	-	-	-
Casein	+	+	+	-	+	+	+	+	-	-	-
Urea	+	+	+	+	+	+	+	+	+	+	+
Citrate utilization	+	-	+	-	+	+	-	-	+	-	-
Resistance to NaCl	5%	5%	5%-7%	5%	7%	5%	5%	5%	5%	5%	5%
Optimum temperature	30 °C	25-35 °C	30 °C	25-30 °C	30-35 °C	30 °C	25-35 °C	30-40 °C	30 °C	25-30 °C	30 °C

-: Negative; +: Positive.