<abstract xmlns="http://www.w3.org/1999/xhtml">Due to their unique biochemical composition, sea cucumbers are highly prized marine echinoderm species. One of their most important properties is that they contain a high amount of collagen in their body wall. In this study, the relationship between collagen and pepsin-solubilized collagen yields from <italic>Holothuria tubulosa</italic> and <italic>Holothuria poli</italic> and morphometric and biochemical parameters were investigated.Collagen yields were in the range of 10.63–16.04% for <italic>H. tubulosa</italic> and 7.12–13.10% for <italic>H. poli</italic>. It was determined that they may be related to length, body wall weight, and biochemical composition at different length frequencies. Moreover, maturity may have a direct effect on the yield, as mature specimens were found to have lower content of collagen, whereas immature small specimens contained a higher percentage of collagen. It was found that with increasing pepsin concentration, the PSC yield increased to 1.83–1.89% in <italic>H. tubulosa</italic> and <italic>H. poli</italic>, respectively. It was determined that collagen from smaller individuals, which contained more moisture and ash, was likely more susceptible to pepsin hydrolyzation.This is the first published study demonstrating that collagen yield of sea cucumbers can vary with length, weight, maturity, and biochemical composition, in addition to species-specific differences.</abstract>

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

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

Department of Fishing and Processing Technology, Faculty of Marine Sciences and Technology

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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

Due to their unique biochemical composition, sea cucumbers are highly prized marine echinoderm species. One of their most important properties is that they...

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)

Article Category: Original research paper

Published Online: Mar 31, 2022

Page range: 100 - 114

Received: Apr 01, 2021

Accepted: Aug 24, 2021

DOI: https://doi.org/10.26881/oahs.2022.1.09

Keywords
collagen yield, pepsin-soluble collagen, length–weight relationship, maturity, sea cucumber

© 2022 İbrahim Ender Künili, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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)

Article Category: Original research paper

Published Online: Mar 31, 2022

Page range: 100 - 114

Received: Apr 01, 2021

Accepted: Aug 24, 2021

DOI: https://doi.org/10.26881/oahs.2022.1.09

Keywordscollagen yield, pepsin-soluble collagen, length–weight relationship, maturity, sea cucumber

© 2022 İbrahim Ender Künili, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
collagen yield, pepsin-soluble collagen, length–weight relationship, maturity, sea cucumber