Research Article

Keratinase Production by Three Bacillus spp. Using Feather Meal and Whole Feather as Substrate in a Submerged Fermentation

Figure 3

Protein concentration in culture supernatant of B. subtilis 1273, B. licheniformis 1274, and B. cereus 1268 grown in feathers and feather meals media at 28°C for 7 days.
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