Terpenoids and sterols in Cladophora vagabunda

Elenkov, Ivaylo; Georgieva, Tamara; Hadjieva, P.; Dimitrova-Konaklieva, Stefka; Попов, Симеон

doi:10.1016/0031-9422(94)00704-w

Cited by 23 publications

(14 citation statements)

References 6 publications

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“…We also noticed relatively high content of essential fatty acids -linoleic (C18:2; n-6) and α-linoleic acid (C18:3; n-3) in obtained extracts, which make these extracts potentially valuable sources for food, feed and cosmetics production. According to others studies concerning fatty acid composition in extracts from marine Cladophora, the alga contained the most amount of palmitic acid (C16:0) among others fatty acids [11][12][13] as in our research. C. vagabunda was found to be a rich source of C20:4 (n-6) fatty acid, which was the main unsaturated fatty acid in contrast to the freshwater C. glomerata, where we detected this acid in traces, and where the C18:1 acid was the dominant unsaturated fatty acid.…”

Section: Discussionsupporting

confidence: 66%

“…Such studies were carried out mainly on macroalgae forming a large biomass in marine ecosystems [8,9]. Many studies of marine green algae from the genus Cladophora indicate the occurrence in their cells of different bioactive compounds, such as unsaturated and saturated fatty acids [10][11][12], sterols, terpenoids [13], phenolic compounds [14], and others, that make them a very useful raw material for nutritional and pharmaceutical applications. So far, only a few studies have been conducted on freshwater Cladophora species and their use as a natural source of bioactive compounds.…”

Section: Introductionmentioning

confidence: 99%

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Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

et al. 2015

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This study was undertaken to determine mineral content, amino acid and fatty acid composition of the freshwater macroalga -Cladophora glomerata. The studies were based on the content comparison in algal biomass collected from a lake and cultured in a laboratory. To determine the ability of copper cumulating by macroalgae, Cladophora was cultured in the medium supplemented with Cu ions. This study indicated that the relative abundance of metals in filaments decreased in the following order: Ca > K > Mg > Na > Fe > Cu > Zn > Pb > As > Ni > Cd > Mn > Cr > Co. Total protein content ranged from 14.45% in Cladophora from a lake to 26.55% in Cladophora from a laboratory. The main amino acids analyzed were aspartic and glutamic acid. The fatty acid content in the dry matter of the extract varied depending on the extraction method used: ethylene alcohol (19.0%), acetone (34.5%) or supercritical fluid extraction (62.5%). Freshwater C. glomerata due to the macrominerals, trace elements, amino and fatty acids composition in the extracts can be a valuable resource for nutritional and cosmetic applications.

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Section: Discussionsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

et al. 2015

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“…Some studies have found numerous sterols, free fatty acids and esters, terpenes, aldehydes, betaines, halogenated, and nitrogen-containing compounds in Cladophora spp. (Elenkov et al, 1995;Kamenarska et al, 2004). In addition, some studies have demonstrated antibacterial, anti-inflammatory, and cytotoxic activity of individual compounds or extracts (Kamenarska et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Palatability of Macroalgae that Use Different Types of Chemical Defenses

Erickson

Paul

Alstyne³

et al. 2006

J Chem Ecol

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This study compared algal palatability and chemical defenses from subtropical green algae that may use different types of defense systems that deter feeding by the rockboring sea urchin Echinometra lucunter. The potential defense systems present include (1) the terpenoid caulerpenyne and its activated products from Caulerpa spp., and (2) dimethylsulfoniopropionate (DMSP)-related defenses in Ulva spp. Secondary metabolites from these chemical groups have been shown to deter feeding by various marine herbivores, including tropical and temperate sea urchins. Live algal multiple-choice feeding assays and assays incorporating algal extracts or isolated metabolites into an artificial diet were conducted. Several green algae, including Ulva lactuca, Caulerpa prolifera, and Cladophora sp., were unpalatable. Nonpolar extracts from U. lactuca deterred feeding, whereas nonpolar extracts from C. prolifera had no effect on feeding. Polar extracts from both species stimulated feeding. Caulerpenyne deterred feeding at approximately 4% dry mass; however, dimethyl sulfide and acrylic acid had no effect at natural and elevated concentrations. E. lucunter is more tolerant than other sea urchins to DMSP-related defenses and less tolerant to caulerpenyne than many reef fish. Understanding the chemical defenses of the algae tested in this study is important because they, and related species, frequently are invasive or form blooms, and can significantly modify marine ecosystems.

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“…We have detected three of them in the essential oil of both wild plant and regenerated one from tissue culture of A. macrosperma, including dihydronepetalactone, iridomyrmecin, dihydroactinidiolide. The three compounds have been identified in essential oils of Nepeta cataria, N. nepetella, A. polygama, algae (Cladophora vagabunda) (Elenkov et al, 1995) and defensive secretions of some ants, e.g., Iridomyrmex pruinosus, I. purpureus, and rove beetle (Creophilus maxilosus). Their effect on the physiological activities of cats has been confirmed (Tucker and Tucker, 1988).…”

Section: Discussionmentioning

confidence: 99%