Grasas y Aceites, Vol 71, No 3 (2020)

Biochemical composition and antioxidant potential of the edible Mediterranean sea cucumber Holothuria tubulosa

N. Zmemlia
Environment Biomonitoring Laboratory (LR01/ES14), Department of Life Sciences, Bizerta Faculty of Sciences, University of Carthage, Tunisia

S. Bejaoui
Laboratory of Ecology, Biology and Physiology of Aquatic Organisms (LR18ES41), University of Tunis El Manar, Tunisia

I. Khemiri
Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Tunisia

N. Bouriga
Laboratory of Ecology, Biology and Physiology of Aquatic Organisms (LR18ES41), University of Tunis El Manar, Tunisia

I. Louiz
Environment Biomonitoring Laboratory (LR01/ES14), Department of Life Sciences, Bizerta Faculty of Sciences, University of Carthage, Tunisia

S. El-Bok
Laboratory of Biodiversity, Biotechnologies and Climate Change (LR11/ES09), Faculty of Sciences of Tunis, Tunisia

M. Ben-Attia
Environment Biomonitoring Laboratory (LR01/ES14), Department of Life Sciences, Bizerta Faculty of Sciences, University of Carthage, Tunisia

A. Souli
Environment Biomonitoring Laboratory (LR01/ES14), Department of Life Sciences, Bizerta Faculty of Sciences, University of Carthage, Tunisia


The sea cucumber or holothurian is a marine species which has been prized in some Asian coun­tries for its nutritional qualities. The purpose of this work was to study the biochemical composition and free radical scavenging and antioxidant activities of Holothuria tubulosa tegument from the Bizerta lagoon in north­ern Tunisia. The obtained data demonstrated that the extract of sea cucumber teguments exhibited high bio­chemical levels (such as moisture 80.77%, protein 7.07%, lipids 10.21%, energy value 13.64 Kcal/g ww), and an important nutritional value (including n-3/n-6: 2.11, EPA+DHA: 20.96, AI: 1.38 and TI: 0.54). High anti­oxidant activities were recorded in the integument by the radical scavenging tests of ABTS and DPPH as well as by the total antioxidant capacity and the FRAP in comparison with the BHT standard. Our results showed that H. Tubulosa tegument has high nutritional value with high antioxidant activities and could be considered a nutraceutical product.


Antioxidants activities; Fatty acids; Holothuria tubulosa; Nutritional value; Proximate composition; Teguments

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