Fig. 5From: Isolation and identification of a feather degrading Bacillus tropicus strain Gxun-17 from marine environment and its enzyme characteristicsFeather degradation mechanisms of B. tropicus Gxun-17 during 60Â h fermentation period: a Keratinase activity, disulphide reductase activity and feather degradation rate; b contents of sulphur-containing compoundsBack to article page