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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 phenolic compounds 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. Data are expressed as μg of gallic acid equivalents (GAE) per gram of dry weight and are means of three independent experiments performed in triplicate, bars represent mean ± standard deviation (SD). A,B,C: the 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-f001: Total phenolic compounds 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. Data are expressed as μg of gallic acid equivalents (GAE) per gram of dry weight and are means of three independent experiments performed in triplicate, bars represent mean ± standard deviation (SD). A,B,C: the 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: The total phenolic content of the jellyfish extracts was significantly different among the three jellyfish species (Figure 1). In all extracts from Aurelia sp.1 samples, a low content of total phenols was detected, as compared to the other two jellyfish species, with 113.2 ± 0.4 μg GAE (gallic acid equivalent) per gram of DW in the 80% methanol extract, 86.4 ± 9.4 μg GAE/g in the 80% ethanol extract and 115.5 ± 2.0 μg GAE/g in the PBS extract. The total phenol content detected in all extracts of both C. tuberculata and R. pulmo was significantly higher than in Aurelia (Figure 1). The highest concentration was detected for both species in the PBS extracts, reaching 1817.7 ± 153.7 μg GAE/g DW and 2079.3 ± 301.9 μg GAE/g DW, for C. tuberculata and R. pulmo, respectively.


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 phenolic compounds 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. Data are expressed as μg of gallic acid equivalents (GAE) per gram of dry weight and are means of three independent experiments performed in triplicate, bars represent mean ± standard deviation (SD). A,B,C: the 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

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

marinedrugs-13-04654-f001: Total phenolic compounds 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. Data are expressed as μg of gallic acid equivalents (GAE) per gram of dry weight and are means of three independent experiments performed in triplicate, bars represent mean ± standard deviation (SD). A,B,C: the 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: The total phenolic content of the jellyfish extracts was significantly different among the three jellyfish species (Figure 1). In all extracts from Aurelia sp.1 samples, a low content of total phenols was detected, as compared to the other two jellyfish species, with 113.2 ± 0.4 μg GAE (gallic acid equivalent) per gram of DW in the 80% methanol extract, 86.4 ± 9.4 μg GAE/g in the 80% ethanol extract and 115.5 ± 2.0 μg GAE/g in the PBS extract. The total phenol content detected in all extracts of both C. tuberculata and R. pulmo was significantly higher than in Aurelia (Figure 1). The highest concentration was detected for both species in the PBS extracts, reaching 1817.7 ± 153.7 μg GAE/g DW and 2079.3 ± 301.9 μg GAE/g DW, for C. tuberculata and R. pulmo, respectively.

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