The lipidic extract of the seaweed Gracilariopsis longissima (Rhodophyta, Gracilariales): a potential resource for biotechnological purposes?

Stabili, Loredana; Acquaviva, Maria Immacolata; Biandolino, Francesca; Cavallo, Rosa Anna; Pascali, Sandra Angelica De; Fanizzi, Francesco Paolo; Narracci, Marcella; Petrocelli, Antonella; Cecere, Ester

doi:10.1016/j.nbt.2011.11.003

Cited by 53 publications

(48 citation statements)

References 49 publications

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“…The remaining fatty acids were quantified with ranges between 31.96 and 196.38 mg per 100 g. Palmitic acid was the most predominant saturated fatty acid (SFA; 75.37% of the total SFA), accounting for 28.76% of the total fatty acids. High palmitic concentration was also reported in previous studies carried out with algae (Sánchez‐Machado et al ., ; Stabili et al ., ). PUFAs were the most abundant FA and accounted for a total of 2426.56 mg per 100 g, which represent 41.77% of total fatty acids.…”

Section: Resultsmentioning

confidence: 99%

Bifurcaria bifurcata: a key macro‐alga as a source of bioactive compounds and functional ingredients

Alves

Pintéus

Simões

et al. 2016

Int J of Food Sci Tech

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Summary The aim of this work was to study the proximate composition and the bioactive profile of Bifurcaria bifurcata. It contains 73.31 ± 0.69% of moisture, 8.57 ± 0.11 g per 100 g dry weight (d.w.) of protein, 5.81 ± 0.14 g per 100 g d.w. of lipid content and 30.15 ± 0.00 g per 100 g d.w. of ash. The polyunsaturated fatty acids were the most abundant fatty acid (FA), accounting for 2426.56 mg per 100 g which represents 41.77% of the total FA. The methanolic fraction showed high quantity of polyphenols (220.01 ± 0.010 phloroglucinol equivalents g−1 extract), DPPH radical reduction capacity (EC50:58.82 μg mL−1) and oxygen radical absorbent capacity (3151.35 ± 119.33 μmol Trolox equivalents g−1 extract). The highest antimicrobial effect was observed against Pseudomonas aeruginosa (11.3 ± 1.5 mm) and Saccharomyces cerevisiae (IC50:17.07 μg mL−1) induced by methanolic and dichloromethane fractions, respectively. Dichloromethane fraction revealed the highest antitumor activity on Caco‐2 and HepG‐2 cells. Bifurcaria bifurcata can be a promising source of bioactive compounds and functional ingredients.

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Section: Resultsmentioning

confidence: 99%

Bifurcaria bifurcata: a key macro‐alga as a source of bioactive compounds and functional ingredients

Alves

Pintéus

Simões

et al. 2016

Int J of Food Sci Tech

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“…In particular, seaweeds are low in calories, have high content of dietary fiber, are a good source of polyunsaturated fatty acids DHA and EPA, and may contain proteins with an amino acid profile of interest [46]. Apart from the importance of fatty acids for diet, their ability to interfere with bacterial growth and survival has been established in several organisms including seaweeds [40,47]. This is noteworthy since in this study we observed for the first time an antibacterial activity of C. cylindracea against Vibrio aestuarianus , V. fischeri , V. inusitatus , V. litoralis , V. mediterranei , and V. vulnificus .…”

Section: Discussionmentioning

confidence: 99%

“…The lipid fraction of C. cylindracea was characterized by 1 H and 13 C 1D and 2D NMR spectroscopy with the same methodology already reported in Stabili et al [47]. 1D 1 H and 13 C, 2D 1 H J res, 1 H COSY, 1 H– 13 C HSQC, and 1 H– 13 C HMBC spectra were recorded at 298.15 K on a Bruker Avance III 400 MHz spectrometer using CDCl 3 as solvent and chemical shift was referenced to TMS by the residual protic solvent peaks as internal references (( 1 H = 7.24 ppm; 13 C = 77.0 ppm).…”

Section: Methodsmentioning

confidence: 99%

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The Potential Exploitation of the Mediterranean Invasive Alga Caulerpa cylindracea: Can the Invasion Be Transformed into a Gain?

et al. 2016

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Recently, there is a growing interest towards the development of strategies for invasive seaweed control and exploitation as source of secondary metabolites. Here, we investigated the potential of exploitation in biotechnology and recycling options in eradication programs of the lipidic extract of the Mediterranean invasive seaweed Caulerpa cylindracea (Chlorophyta). The chemical characterization was carried out by means of multinuclear and multidimensional NMR spectroscopy. The fatty acid profile of C. cylindracea assessed the presence of several types of molecules known for antioxidant activity such as carotenoids, chlorophylls, pheophytins, and sterols. The NMR spectroscopy showed also the characteristic signals of saturated, unsaturated, and free fatty acids as well as other metabolites including the biopolymer polyhydroxybutyrate. The lipidic extract exerted an antioxidant activity corresponding to 552.14 ± 69.13 mmol Trolox equivalent/g (ORAC) and to 70.3 ± 2.67 mmol Trolox equivalent/g (TEAC). The extract showed an antibacterial activity against several Vibrio species, suggesting its potential use in the control of diseases in mariculture. Our results show that C. cylindracea, representing a critical hazard in coastal areas, could be transformed into a gain supporting specific management actions to reduce the effects of human pressures.

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“…Gracilariopsis longissima extract had the broadest antibacterial spectrum; indeed it was active against four Vibrio species, although with different inhibition strength. A previous study [27] also demonstrated that the chloroform/methanol lipidic extract of G. longissima from the Mar Piccolo of Taranto had bacteriostatic activity against Vibrio alginolyticus and V. vulnificus.…”

Section: Discussionmentioning

confidence: 83%

Antibacterial activity of marine macroalgae against fish pathogenic Vibrio species

et al. 2013

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In mariculture, diseases of microbial origin can cause significant economic losses worldwide; the evolution of microorganism resistance to antibiotics has resulted in a growing need for new antibacterial compounds that are effective in veterinary medicine and characterized by limited undesirable side effects. Increased attention has recently been turned to seaweeds as a promising source for metabolites with antimicrobial activity. Vibriosis is a common disease, caused by bacteria of the genus Vibrio, that can result in high mortality in aquaculture. The aim of this study was to identify seaweeds with antibacterial activity against some pathogenic Vibrio species, in order to identify a possible alternative to the commonly used antibiotics in aquaculture. Chloroform/methanol lipidic extracts of six seaweed species (Chaetomorpha linum, Cladophora rupestris, Gracilaria dura, Gracilaria gracilis, Gracilariopsis longissima, Ulva prolifera) were tested for their antibacterial activities against six fish pathogenic Vibrio species using the disc diffusion method. Different susceptibilities to lipidic algal extracts were observed. All six of the seaweed extracts tested demonstrated inhibition of Vibrio ordalii. The best was that from Gracilariopsis longissima, showing activity against Vibrio ordalii, Vibrio salmonicida, Vibrio alginolyticus and Vibrio vulnificus. The results confirmed the potential use of seaweed extracts as a source of antibacterial compounds or as a health-promoting feed for aquaculture.

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The lipidic extract of the seaweed Gracilariopsis longissima (Rhodophyta, Gracilariales): a potential resource for biotechnological purposes?

Cited by 53 publications

References 49 publications

Bifurcaria bifurcata: a key macro‐alga as a source of bioactive compounds and functional ingredients

Bifurcaria bifurcata: a key macro‐alga as a source of bioactive compounds and functional ingredients

The Potential Exploitation of the Mediterranean Invasive Alga Caulerpa cylindracea: Can the Invasion Be Transformed into a Gain?

Antibacterial activity of marine macroalgae against fish pathogenic Vibrio species

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