Evaluation of Zostera detritus as a potential new source of zosteric acid

Achamlale, Saïd; Rezzonico, Bernadette; Grignon‐Dubois, Micheline

doi:10.1007/s10811-008-9375-8

Cited by 45 publications

(37 citation statements)

References 17 publications

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“…Similarly, zosteric acid (ZA), chemically p-(sulfooxy) cinnamic acid, becomes noteworthy for its anti-fouling activity 29 , which has been proved to inhibit the growth of biofilm forming bacteria 30,31 and fungal spores 32 . Both the living leaves 33 and the detritus of the seagrasses Z. noltii and Z. marina serve as a rich source of ZA that could justify significant exploitation of this low cost, very abundant and renewable, but relatively unused, marine resource 34 . Chemical structures of the phenolic compounds from seagrasses are presented in Figure 3.…”

Section: Phenylmethane and Phenylethane Derivativesmentioning

confidence: 99%

Bioactive natural products from marine angiosperms: abundance and functions

Subhashini

Dilipan

Thangaradjou

et al. 2013

Nat. Prod. Bioprospect.

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This review explores the natural products of seagrass that are to be exploited for their bioactive potential. Beside from portraying the presence of a wide array of secondary compounds such as phenols, flavonoids, sterols and lipids from different seagrass species, the focus is on novel natural products projecting towards their biological applications. Though there are a significant number of reports on the abundance of secondary metabolites from seagrass and their bioactive derivatives, only a small number of reports explore their functional and defensive characteristics. Efforts have been made to collate the available information on seagrass natural products and clarify their function and metabolic pathway's. It is emphasized that metabolic profiling of seagrass should be extensively progressed to obtain a deeper knowledge about the specific roles of each natural product. The investigation of seagrass natural products for their bioactive potential would most likely result in the detection of surprising and unexpected novel chemical structures and clinical leads that may be useful to mankind.Keywords: natural products, phenolic compounds, phenylpropanoid derivatives, seagrasses, secondary metabolites Seagrasses-the Marine AngiospermsSeagrasses, a functional group of flowering plants rooted in the world's coastal oceans, are well known for their secondary metabolites. The current comprehensive review on "Bioactive natural products from marine angiosperms'' was performed in such a way that recent discoveries in the field of seagrass secondary metabolism need to be reviewed. In this review is not possible to detail in a just few pages the full gamut of studies, since our understanding of natural products from seagrasses has increased markedly in the last few decades. Several studies have documented the abundance of these natural metabolites in seagrasses and some have focused on their bioactive potential. Though there are probably 72 species of seagrasses worldwide, only a few have been explored for their natural products and their determinant role. Recently, the secondary metabolites of P. oceanica were compiled 1 , appraised and were summarized into 51 natural products including phenols, phenylmethane, phenylethane, phenylpropane derivatives and their esters, chalkones and flavonoids. These chemical compounds synthesized by secondary metabolic pathways are not involved in the normal growth, development or reproduction but usually have roles in adaptation processes under stress conditions.A severe or long lasting stress factor could induce an excessive shift between primary and secondary metabolism and consequently, a diversion of essential available resources from growth to defense 2 , since the products of primary metabolism are the precursors for secondary metabolic pathways. The topics provided in this paper are limited to seagrass secondary metabolism although it has become clear that a clear line between primary and secondary metabolism cannot be drawn. Hence, the present review aims to collate th...

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Section: Phenylmethane and Phenylethane Derivativesmentioning

confidence: 99%

Bioactive natural products from marine angiosperms: abundance and functions

Subhashini

Dilipan

Thangaradjou

et al. 2013

Nat. Prod. Bioprospect.

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“…The aqueous phase was retained and washed by addition of methanol and finally the desired product with a yield of 52% was obtained. [8,10,16,17] 2.5 Loading of the Biocide into the Porous Material of the Zeolite (ZSM-5)…”

Section: Synthesis Of Biocide (Zosteric Acid)mentioning

confidence: 99%

“…7, it can be clearly seen that the polarization response of the coating system '1' namely (biocide loaded Zeolite modified epoxy coating) 30 days of immersion was towards the anodic side, indicating their superior corrosion resistance than the response of coating system '2'. This superior corrosion resistance offered by coating system '1' might be due to the molecular structure of the biocide (Zosteric acid) [10,17], which was able to adsorb on the metal surface through the π-electrons of the aromatic ring and lone pair of electrons of the sulphur atom [20]. A similar observation was made by Zhongyi He et al [21,24] who further explained the relationship between molecular structures and revealed that the corrosion behaviour properties improve with increasing number of the electronegative atoms, thereby increasing the co-ordination capacity of the heterocyclic molecules that influence the stability and protective properties of the cured film [22].…”

Section: Effect Of Biocide (Zosteric Acid) On the Epoxy Coatingsmentioning

confidence: 99%

Studies on Biocide Free and Biocide Loaded Zeolite Hybrid Polymer Coatings on Zinc Phosphated Mild Steel for the Protection of Ships Hulls from Biofouling and Corrosion

Boopalan

Arumugam

2011

Silicon

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Biocide free and biocide loaded Zeolite epoxy coatings were formulated and covalently linked to diglycidyl ether bisphenol-A type epoxy resin which acts as a base material. These formulations were applied over the zinc phosphated mild steel specimens by a brushing method to give a thickness of 200±10 μm. The effect of biocide on the corrosion and fouling resistance properties were evaluated by Thermo Gravimetric Analysis (TGA), polarization, electrochemical impedance and antifouling testing. The experimental evidence reveals that the linkage of biocide loaded Nano Zeolite has tremendous potential in resisting corrosion and fouling which is ideally required for marine environments and quite superior to the biocide free Zeolite coating. The purity and the structure of these coatings were examined by an FTIR spectral study.

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“…L-Chiro-inositol was isolated from Syringodium filliforme [18]. Detritus of seagrasses Zostera noltii and Zostera marina was screened as a new source of zosteric acid [19] and rosmarinic acid [20]. Syphonosid was isolated from Halophila stipulacea [21].…”

Section: Introductionmentioning

confidence: 99%

Chemometric Studies of Multielemental Composition of Few Seagrasses from Gulf of Mannar, India

Rengasamy

Rajasekaran

Anantharaman

2010

Biol Trace Elem Res

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This paper discusses the determination of minerals content (cadmium, cobalt, chromium, copper, nickel, lead, manganese, magnesium, iron, zinc, sodium, potassium and calcium) of six seagrass samples, Enhalus acoroides, Thalassia hemprichii, Halodule pinifolia, Syringodium isoetifolium, Cymodocea serrulata and Cymodocea rotundata using inductively coupled plasma optical emission spectrophotometry and flame photometer. Principal component analysis (PCA) and hierarchical cluster analysis revealed different mineral compositions of the seagrass samples. Among the 13 elements investigated, Ni 1.513, Na 690.167 and Ca 220.333; Cr 3.957; Mn 23.427, Zn 17.593 and Fe 156.567; Cd 0.357, Co 0.431, Pb 2.040, Mg 912.733 and K 300.9; Cu 7.8 mg/kg dry weight, respectively, were found at high concentrations in E. acoroides; T. hemprichii; H. pinifolia; S. isoetifolium and C. rotundata. PCA analysis confirmed the presence of three components with 91.28% of the total variance. The toxic elements Pb, Cr and Cd were also found in all six seagrasses, although the concentrations were below the permissible limits proposed by the World Health Organization.

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Evaluation of Zostera detritus as a potential new source of zosteric acid

Cited by 45 publications

References 17 publications

Bioactive natural products from marine angiosperms: abundance and functions

Bioactive natural products from marine angiosperms: abundance and functions

Studies on Biocide Free and Biocide Loaded Zeolite Hybrid Polymer Coatings on Zinc Phosphated Mild Steel for the Protection of Ships Hulls from Biofouling and Corrosion

Chemometric Studies of Multielemental Composition of Few Seagrasses from Gulf of Mannar, India

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