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The Bright Side of Gelatinous Blooms: Nutraceutical Value and Antioxidant Properties of Three Mediterranean Jellyfish (Scyphozoa).

Leone A, Lecci RM, Durante M, Meli F, Piraino S - Mar Drugs (2015)

Bottom Line: The content and composition of proteins, amino acids, phenolics, and fatty acids of the three species were recorded and compared.Protein content (mainly represented by collagen) up to 40% of jellyfish dry weight were found in two of the three jellyfish species (C. tuberculata and R. pulmo), whereas the presence of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) was significantly higher in the zooxanthellate jellyfish C. tuberculata only.The abundance of collagen, peptides and other bioactive molecules make these Mediterranean gelatinous biomasses a largely untapped source of natural compounds of nutraceutical, cosmeceutical and pharmacological interest.

View Article: PubMed Central - PubMed

Affiliation: Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy. antonella.leone@ispa.cnr.it.

ABSTRACT
Jellyfish are recorded with increasing frequency and magnitude in many coastal areas and several species display biological features comparable to the most popular Asiatic edible jellyfish. The biochemical and antioxidant properties of wild gelatinous biomasses, in terms of nutritional and nutraceutical values, are still largely unexplored. In this paper, three of the most abundant and commonly recorded jellyfish species (Aurelia sp.1, Cotylorhiza tuberculata and Rhizostoma pulmo) in the Mediterranean Sea were subject to investigation. A sequential enzymatic hydrolysis of jellyfish proteins was set up by pepsin and collagenase treatments of jellyfish samples after aqueous or hydroalcoholic protein extraction. The content and composition of proteins, amino acids, phenolics, and fatty acids of the three species were recorded and compared. Protein content (mainly represented by collagen) up to 40% of jellyfish dry weight were found in two of the three jellyfish species (C. tuberculata and R. pulmo), whereas the presence of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) was significantly higher in the zooxanthellate jellyfish C. tuberculata only. Remarkable antioxidant ability was also recorded from both proteinaceous and non proteinaceous extracts and the hydrolyzed protein fractions in all the three species. The abundance of collagen, peptides and other bioactive molecules make these Mediterranean gelatinous biomasses a largely untapped source of natural compounds of nutraceutical, cosmeceutical and pharmacological interest.

No MeSH data available.


Related in: MedlinePlus

Total antioxidant activity in jellyfish extracted with phosphate buffered saline (PBS), 80% methanol and 80% ethanol from freeze-dried tissues of Aurelia sp.1, C.tuberculata and R. pulmo. Antioxidant activity is expressed as nmol of Trolox eq. (TE) per gram of dry weight or as nmol TE per mg of proteins (inset). Data are the mean of three independent experiments performed in triplicate, bars represent mean ± standard deviation. A,B,C: different capital letters indicate differences among species for the same extraction type; a,b,c: the different lower case letters indicate significant differences among extracts in the same jellyfish species, (p < 0.05).
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marinedrugs-13-04654-f002: Total antioxidant activity in jellyfish extracted with phosphate buffered saline (PBS), 80% methanol and 80% ethanol from freeze-dried tissues of Aurelia sp.1, C.tuberculata and R. pulmo. Antioxidant activity is expressed as nmol of Trolox eq. (TE) per gram of dry weight or as nmol TE per mg of proteins (inset). Data are the mean of three independent experiments performed in triplicate, bars represent mean ± standard deviation. A,B,C: different capital letters indicate differences among species for the same extraction type; a,b,c: the different lower case letters indicate significant differences among extracts in the same jellyfish species, (p < 0.05).

Mentions: A significant antioxidant activity, measured as radical scavenging activity, was detected in all samples including the jellyfish aqueous/hydroalcoholic extracts and the hydrolyzed peptides resulting from pepsin and collagenase digestions (Figure 2 and Figure 3).


The Bright Side of Gelatinous Blooms: Nutraceutical Value and Antioxidant Properties of Three Mediterranean Jellyfish (Scyphozoa).

Leone A, Lecci RM, Durante M, Meli F, Piraino S - Mar Drugs (2015)

Total antioxidant activity in jellyfish extracted with phosphate buffered saline (PBS), 80% methanol and 80% ethanol from freeze-dried tissues of Aurelia sp.1, C.tuberculata and R. pulmo. Antioxidant activity is expressed as nmol of Trolox eq. (TE) per gram of dry weight or as nmol TE per mg of proteins (inset). Data are the mean of three independent experiments performed in triplicate, bars represent mean ± standard deviation. A,B,C: different capital letters indicate differences among species for the same extraction type; a,b,c: the different lower case letters indicate significant differences among extracts in the same jellyfish species, (p < 0.05).
© Copyright Policy
Related In: Results  -  Collection

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Show All Figures
getmorefigures.php?uid=PMC4556998&req=5

marinedrugs-13-04654-f002: Total antioxidant activity in jellyfish extracted with phosphate buffered saline (PBS), 80% methanol and 80% ethanol from freeze-dried tissues of Aurelia sp.1, C.tuberculata and R. pulmo. Antioxidant activity is expressed as nmol of Trolox eq. (TE) per gram of dry weight or as nmol TE per mg of proteins (inset). Data are the mean of three independent experiments performed in triplicate, bars represent mean ± standard deviation. A,B,C: different capital letters indicate differences among species for the same extraction type; a,b,c: the different lower case letters indicate significant differences among extracts in the same jellyfish species, (p < 0.05).
Mentions: A significant antioxidant activity, measured as radical scavenging activity, was detected in all samples including the jellyfish aqueous/hydroalcoholic extracts and the hydrolyzed peptides resulting from pepsin and collagenase digestions (Figure 2 and Figure 3).

Bottom Line: The content and composition of proteins, amino acids, phenolics, and fatty acids of the three species were recorded and compared.Protein content (mainly represented by collagen) up to 40% of jellyfish dry weight were found in two of the three jellyfish species (C. tuberculata and R. pulmo), whereas the presence of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) was significantly higher in the zooxanthellate jellyfish C. tuberculata only.The abundance of collagen, peptides and other bioactive molecules make these Mediterranean gelatinous biomasses a largely untapped source of natural compounds of nutraceutical, cosmeceutical and pharmacological interest.

View Article: PubMed Central - PubMed

Affiliation: Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy. antonella.leone@ispa.cnr.it.

ABSTRACT
Jellyfish are recorded with increasing frequency and magnitude in many coastal areas and several species display biological features comparable to the most popular Asiatic edible jellyfish. The biochemical and antioxidant properties of wild gelatinous biomasses, in terms of nutritional and nutraceutical values, are still largely unexplored. In this paper, three of the most abundant and commonly recorded jellyfish species (Aurelia sp.1, Cotylorhiza tuberculata and Rhizostoma pulmo) in the Mediterranean Sea were subject to investigation. A sequential enzymatic hydrolysis of jellyfish proteins was set up by pepsin and collagenase treatments of jellyfish samples after aqueous or hydroalcoholic protein extraction. The content and composition of proteins, amino acids, phenolics, and fatty acids of the three species were recorded and compared. Protein content (mainly represented by collagen) up to 40% of jellyfish dry weight were found in two of the three jellyfish species (C. tuberculata and R. pulmo), whereas the presence of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) was significantly higher in the zooxanthellate jellyfish C. tuberculata only. Remarkable antioxidant ability was also recorded from both proteinaceous and non proteinaceous extracts and the hydrolyzed protein fractions in all the three species. The abundance of collagen, peptides and other bioactive molecules make these Mediterranean gelatinous biomasses a largely untapped source of natural compounds of nutraceutical, cosmeceutical and pharmacological interest.

No MeSH data available.


Related in: MedlinePlus