Co-production of gallic acid and a novel cell-associated tannase by a pigment-producing yeast, Sporidiobolus ruineniae A45.2

Table 1 Tannase activity, gallic acid content and viable cell numbers of S. ruineniae A45.2 when cultivated in YMB supplemented with 5 g/L tannic acid at 30 °C

Parameters	12 h	24 h
Cell free supernatant (mU/mL)	0	0
Soluble fraction (mU/mL)	0.25 ± 0.06	0.6 ± 0.12
Cell-associated tannase (mU/mL)	0.5 ± 0.06	1.3 ± 0.10
Gallic acid (g/L)	2.5 ± 0.1	5.2 ± 0.2
Viable cells (logCFU/mL)	6.95 ± 0.03	7.16 ± 0.02

ISSN: 1475-2859