Essential oil Composition of Whole Flowers ofRhizophora apiculata, Rhizophora mucronataandRhizophoraxannamalayanafrom Pichavaram, India

Saranya, Jothiramshekar; Pious, Benish Rose; Eganathan, Palanisami; Ramasubramanian, R.; Selvam, V.

doi:10.1080/0972060x.2014.909748

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…44 Studies of the flowers of three species of Rhizophora demonstrate the presence of alkanes, fatty acids, phenylpropanes and monoterpenes with eugenol one of the major components. 45 In general, there are few studies about essential oils in mangrove species. Phytochemical screening showed the presence of flavonoids in all samples, mainly chlorogenic acid, tannins, volatile oils, and saponins; coumarins were detected in seven of the nine analyzed samples, except for the leaves and bark of C. erectus, alkaloids were not evidenced in leaves and bark of button mangrove and A. germinans root.…”

Section: Phytochemistry Of Mangroves From Guatemalamentioning

confidence: 99%

Biological activity and chemical composition of organic extracts from three Guatemalan mangrove trees

Cruz¹,

Marroquín²,

Cáceres³

2019

Int J Phytocos Nat Ingred

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Introduction: Mangroves are trees or shrubs that are able to grow in brackish water along tropical and subtropical coasts around the world, representing an important ecological conservation system. They have a long tradition of medicinal use and are rich in secondary metabolites. The aim of this research was to evaluate the biological activity and chemical composition of three mangrove species, Avicennia germinans, Conocarpus erectus and Laguncularia racemose, from a natural reserve from Guatemala. Methods: Leaf, bark and root were organically extracted; secondary metabolites were identified by macro and semi-micro tests and TLC, and evaluated for flavonoid and tannin content. Antioxidant activity was evaluated by DPPH, FRAP, TPC and ABTS methods, and antimicrobial activity against seven bacteria. By established protocols it was investigated the larvicidal activity against Anopheles and Aedes, cytotoxicity against Artemia salina and anti-tyrosinase activity by TLC. Results: The best yields were obtained with ethanol in leaves (5.43-26.65%); the highest essential oil yields also in leaves (0.02-0.13%), in both cases A. germinans. Main secondary metabolites were flavonoids, tannins, coumarins, saponins and alkaloids, except C. erectus leaf and bark and A. germinans root. The highest amount of chlorogenic acid was found in A. germinans bark (15.6%), the highest percentage of tannins in L. racemosa root (7.2%), the highest antioxidant activity by DPPH (IC 50 0.2-5.6 mg/mL) in C. erectus leaves, and FRAP (1.2-4.5 g Fe +2 /g of extract) and ABTS (IC50 0.2-11.6 mg/mL) in the bark. Antioxidant activity correlated with TPC, the highest amount in A. germinans bark (149.40-291.39 μg of gallic acid/g extract). None of the species showed larvicidal activity, nor cytotoxicity. Only L. racemosa root showed antibacterial activity against all strains (IC 50 0.62 mg/mL). The ethyl acetate and ethanol extracts exhibited mild anti-tyrosinase activity. Conclusion: Mangroves are a promising potential source of antioxidants and antibacterial compounds.

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Section: Phytochemistry Of Mangroves From Guatemalamentioning

confidence: 99%

Biological activity and chemical composition of organic extracts from three Guatemalan mangrove trees

Cruz¹,

Marroquín²,

Cáceres³

2019

Int J Phytocos Nat Ingred

View full text Add to dashboard Cite

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Assessment and identification of bioactive metabolites from terrestrial Lyngbya spp. responsible for antioxidant, antifungal, and anticancer activities

Verma,

Suman,

Mandal

et al. 2023

Braz J Microbiol

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Study of seasonality and location effects on the chemical composition of essential oils from Eugenia uniflora leaves

unior¹,

uñez²,

Santos³

et al. 2021

J. Med. Plants Res.

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The essential oils of Eugenia uniflora leave possess several biological activities but a great variability in their chemical composition is observed. In the present study, gas chromatography and mass spectrometry were applied to examine the essential oil from leaves of four different specimens over the seasons of the year, two of which are located in a habitat of a Brazilian metropolis, and the other two in a natural reserve. The collected data allowed identifying twenty-nine compounds; an aliphatic ketone, sesquiterpenes, fatty acids, hydrocarbons, and phthalate derivatives. Sesquiterpene hydrocarbons and oxygenated sesquiterpenes were the chemical classes prevailing in most samples. The curzerene was observed in higher content (10.5-53.4%) in all samples in which the presence of sesquiterpenes class was confirmed. Phthalate derivatives were identified for the first time in the essential oil of E. uniflora leaves. The occurrence of a common chemical marker for four specimens was not observed. Besides, no compound was observed in the same specimen throughout the seasons, and specimens of the same habitat exhibited different essential oil chemical profiles. According to the multivariate analysis applied to the chemical profile for all individuals in different seasons, four different clusters were identified without dependence on season or location.

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Essential oil Composition of Whole Flowers ofRhizophora apiculata, Rhizophora mucronataandRhizophoraxannamalayanafrom Pichavaram, India

Cited by 3 publications

References 11 publications

Biological activity and chemical composition of organic extracts from three Guatemalan mangrove trees

Biological activity and chemical composition of organic extracts from three Guatemalan mangrove trees

Assessment and identification of bioactive metabolites from terrestrial Lyngbya spp. responsible for antioxidant, antifungal, and anticancer activities

Study of seasonality and location effects on the chemical composition of essential oils from Eugenia uniflora leaves

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