Effects of morphometric and biochemical parameters on collagen and pepsin-solubilized collagen yields of Holothuria tubulosa (Gmelin, 1790) and Holothuria (Roweothuria) poli (Delle Chiaje, 1823)

Due to their unique biochemical composition, sea cucumbers are highly prized marine echinoderm species. One of most important properties is that they contain a high amount collagen in body wall. In this study, the relationship between and pepsin-solubilized yields from Holothuria tubulosa poli morphometric parameters were investigated.
 Collagen range 10.63–16.04% for H. 7.12–13.10% poli. It was determined may be related length, wall weight, composition at different length frequencies. Moreover, maturity have direct effect on yield, as mature specimens found lower content collagen, whereas immature small contained higher percentage collagen. with increasing pepsin concentration, PSC yield increased 1.83–1.89% poli, respectively. smaller individuals, which more moisture ash, likely susceptible hydrolyzation.
 This first published study demonstrating can vary maturity, addition species-specific differences.