Figure 7.

(A) Hoechst and actin green fluorescent staining of cells at all serum concentrations and protein hydrolysate conditions. Only selected concentrations of protein hydrolysates in combination with 1% serum were used for imaging; Doubling time (h) for protein hydrolysates at low concentrations (0.001, 0.01, and 0.1 mg/mL) in combination with low serum concentrations (1 and 2.5%), negative control (serum-free) and positive control (10% serum), for oyster (B); mussel (C); lugworm (D); and BSF (E). ns: non-significant; (**) significant (p < 0.05).