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

Figure 9

Goatskin dehairing efficiency of keratinase produced by P. stutzeri strain K4: (a) skin immersed in distilled water (control), (b) skin immersed in culture filtrate or crude keratinolytic enzyme and after 20 h of incubation (experimental), and (c) goatskin dehaired with chemical (Na₂S) as a positive control [147].

(a)

(b)

(c)