Fig. 1From: Comprehensive insights into the mechanism of keratin degradation and exploitation of keratinase to enhance the bioaccessibility of soybean proteinThe morphological changes of feather degradation by Bacillus sp. 8A6 under the optimized conditions were observed by scanning electron microscope. The first row is initial incubation (0 h) (A–C), the second row is 8 h incubation (D–F) and the third row is 20 h incubation (G–I)Back to article page