Interspecific variation in total phenolic content in temperate brown algae

Mannino, Anna Maria; Vaglica, Valentina; Oddo, Eĺisabetta

doi:10.4081/jbr.2017.6578

Cited by 11 publications

(14 citation statements)

References 22 publications

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“…For Cystoseira sensu latu species inhabiting the infralittoral fringe and subjected to regular even if incomplete emersion of the thalli, which implies a direct exposure to solar radiation, a higher content of these compounds as compared with those of species inhabiting the continually submerged zone, is expected [105]. Instead, in C. amentacea and in C. compressa, inhabiting the infralittoral fringe, a lower value than D. polypodioides, inhabiting the continually submerged zone, was found [78]. Connan et al [79] reported a higher content of these compounds in brown algae growing at mid-tide level compared to that of species inhabiting either the low-tide level or the upper mid-littoral fringe.…”

Section: Of 19mentioning

confidence: 93%

“…But only soluble phlorotannins change with environmental conditions, as those present in the cell wall seem to be relatively stable to environmental variations [39]. Phlorotannins vary within and among species, in relation to the growth rate, the thallus morphology [4,10,34,37,77,78] (Figure 3) or age; for instance, adult thalli present longer and more complex forms, more difficult to degrade or release, than young thalli [39]. The content of soluble and cell-wall-bound phlorotannins also change within a single plant and among individuals within the population.…”

Section: Ecological Role Of Phlorotanninsmentioning

confidence: 99%

“…De Candolle) J.V. Lamouroux, suggests that the last one invests more resources in defensive metabolites due to a higher grazer pressure [78] (Figure 4). Phlorotannins also induce resistance to grazing [99].…”

Section: Of 19mentioning

confidence: 99%

“…Variations of total phenolic content (TPC) in four Mediterranean brown algae. Bars represent mean ± standard deviation (n = 5) (from[78]). …”

mentioning

confidence: 99%

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Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

Mannino

Micheli

2020

JMSE

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Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g., increasing temperature and ocean acidification), which act at different spatial scales, represent the most serious threats to biodiversity and ecosystem structure and function. In the Mediterranean Sea, complex systems such as fucoid algae and seagrasses, characterized by a high associated biodiversity, are regularly exposed to natural and anthropogenic pressures. These systems, particularly sensitive to a variety of stressors, evolved several physiological and biochemical traits as a response to the different pressures which they are subjected to. For instance, they produce a huge quantity of secondary metabolites such as phenolic compounds, to adapt to different environmental stressors and to defend themselves from biological pressures. These natural products are receiving increasing attention due to their possible applications in a wide range of industrial sectors. In this paper we provide an overview on the ecological role of phenolic compounds from the genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile, also highlighting their potential use as ecological biomarkers.

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Section: Of 19mentioning

confidence: 93%

Section: Ecological Role Of Phlorotanninsmentioning

confidence: 99%

Section: Of 19mentioning

confidence: 99%

“…Variations of total phenolic content (TPC) in four Mediterranean brown algae. Bars represent mean ± standard deviation (n = 5) (from[78]). …”

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confidence: 99%

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Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

Mannino

Micheli

2020

JMSE

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“…Within its broad geographical range Cystoseira barbata may show considerable morphological and chemical variation, related to environmental conditions. Some studies were conducted on this species using traditional morphometric measures (length, biomass, age) in the Black Sea area [5]. Many studies show great variability in the chemical composition of marine algae characteristics due to marine habitats, but also other factors such as water temperature, seasonal variations, marine pollutants, etc.…”

mentioning

confidence: 99%

Evaluation of Total Phenolic Content in Relation to Antioxidant Activity of Brown Algae Cystoseira barbata from Black Sea

Cadâr¹,

Sîrbu²,

Ibram³

et al. 2019

Rev. Chim.

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Seaweeds are widely used in the life science as source of compounds with diverse structural forms and biological activities, therefore, potential source of new antioxidant activity. The algae of the Black Sea have not been adequately explored for their potential as a source of bioactive substances. In this context, Brown algae Cystoseira barbata isolated from Black Sea coastal waters of Romania, were evaluated for their bioactivity potential. The results from Cystoseira barbata were obtained: for total phenolic content obtained in ethanolic extracts (TPC): 385.6 � 1.85 mg GAE/100 g f.w. Phenolic Acids quantified by HPLC-DAD from hydroethanolic extract of Cystoseira barbata from Black Sea was 80.14% from total phenolic content identified. We showed that Cystoseira barbata from the Romanian shore of the Black Sea contains vanillic acid in highest quantity (99.5�0.08 mg/100 g f.w.), followed by benzoic acid (65.7�0.06 mg/100 g f.w.) and feluric acid (54.5�0.01 mg/100 g f.w.). The smallest quantities were for gallic acid (3.5�0.03 mg/100 g f.w.), pyrogallol acid (4.2�0.05 mg/100 g f.w.) and 4-amino-benzoic acid (5.2�0.09 mg/100 g f.w.). Cystoseira barbata has a total content of large phenols and also has strong antioxidant and antimicrobial activity. Antioxidant activity (ACL) was studied using DPPH radical scavenging activity and reducing power. The extracts containing high levels of total phenolic content were also potent DPPH radical scavengers. The IC50 (�g/mL) for Cystoseira barbata in methanolic extract was 942.92� 2.56 �g/mL. High absorbance obtained from reducing power assay indicates high reducing power, measured values of absorbance varied from 0.0901 at 0.9223.

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Antioxidant and antimicrobial potential of six Fucoids from the Mediterranean Sea and the Atlantic Ocean

et al. 2022

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BACKGROUD: In recent years, research on the bioactive properties of macroalgae has increased, due to the great interest in exploring new products that can contribute to improve human health and wellbeing. In the present study, the antioxidant and antimicrobial potential of six different brown algae of the Fucales order were evaluated, namely Ericaria selaginoides, Ericaria amentacea, Gongolaria baccata, Gongolaria usneoides, Cystoseira compressa and Sargassum vulgare (collected along the Mediterranean and Atlantic coasts). The antioxidant capacity was measured by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, the oxygen radical absorbent capacity (ORAC) and the ferric reducing antioxidant power (FRAP) and were related to the total phenolic content (TPC). The antimicrobial activity was evaluated measuring the growth inhibition of Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans. RESULTS:The highest antioxidant capacity was obtained for Ericaria selaginoides revealing the highest capacity to scavenge DPPH radical [half maximal effective concentration (EC 50 ) = 27.02 ∼g mL −1 ], highest FRAP (1761.19 ∼mol FeSO 4 equivalents g −1 extract), high ORAC (138.92 ∼mol TE g −1 extract), alongside to its high TPC (121.5 GAE g −1 extract). This species also reported the highest antimicrobial capacity against Staphylococcus aureus [half maximal inhibitory concentration (IC 50 ) = 268 ∼g mL −1 ].CONCLUSIONS: Among all studied seaweed, Ericaria selaginoides reveals the highest antioxidant and antimicrobial activities, and thus should be explored as a natural food additive and/or functional ingredient.

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Interspecific variation in total phenolic content in temperate brown algae

Cited by 11 publications

References 22 publications

Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile

Evaluation of Total Phenolic Content in Relation to Antioxidant Activity of Brown Algae Cystoseira barbata from Black Sea

Antioxidant and antimicrobial potential of six Fucoids from the Mediterranean Sea and the Atlantic Ocean

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