Research Article

A Study on L-Asparaginase of Nocardia levis MK-VL_113

Table 3

L-asparaginase production by Nocardia levis grown in modified ISP-5 broth amended with different nitrogen sources.

Nitrogen sources (1% w/v)L-asparaginase production (U/mg of cell dry wt.)

L-asparagine 4 . 2 8 ± 0 . 0 1 6
Beef extract 0 . 6 4 ± 0 . 0 6 1
L-glutamine 4 . 1 9 ± 0 . 0 0 8
Malt extract 2 . 4 7 ± 0 . 0 7 5
Peptone 3 . 8 6 ± 0 . 1 5 4
Tryptone 4 . 3 4 ± 0 . 0 7 6
Yeast extract 4 . 5 6 ± 0 . 1 7 2

Values are the means of three replicates ± S D .