Bioconversion of Keratin Wastes Using Keratinolytic Microorganisms to Generate Value-Added Products

Figure 14

Stain (blood) removal efficiency of commercial detergent (upper pictures) and keratinase produced by Vibrio sp. strain R11 (lower pictures): (a) stained cotton fabric before reaction mix, (b) stained cotton fabric treated with glycine/NaOH buffer alone (control), and (c) stained cotton fabric treated with 11.6 Uml^–1 enzyme or 7 mg/ml commercial detergent, 30 min incubation at 37°C [62].