Research Article

Characterization and Potential Use of Cuttlefish Skin Gelatin Hydrolysates Prepared by Different Microbial Proteases

Figure 4

pH (a), thermal (b), and digestive (c) stabilities of alcalase-CSGH as monitored by β-carotene bleaching, radical-scavenging DPPH, and reducing power assay. Bars represent standard deviation ( ).
461728.fig.004a
(a)
461728.fig.004b
(b) Principal vertical axis indicates relative activity using β-carotene bleaching and radical-scavenging DPPH and secondary vertical axis indicates relative activity using reducing power assay
461728.fig.004c
(c) 0 to 60 min: stomach condition; 60 to 240 min: duodenal condition