Antioxidant Activities of Terpenoids from Thuidium tamariscellum (C. Muell.) Bosch. and Sande-Lac. a Moss

Abstract

Introduction:Thuidium tamariscellum is a small creeping epiphytic moss growing on trunks and branches of trees as well as on moist shady rocky surface at high altitudes areas. Methods: The present study was undertaken to analyze the phytochemicals in the species and its antioxidant potentialities interms of DPPH, ABTS, H 2 O 2 , FRAP and metal chelating ability. Results: Total terpenoids level was remarkable. Interestingly, a concentration dependent free radical scavenging potential was noticed and was comparable with the synthetic antioxidant ascorbate. Further, the FTIR analysis of petroleum ether, chloroform, ethyl acetate, and methanol extract confirmed the presence of alcohols/phenols, primary, secondary amines, amides, alkanes, aldehydes, saturated aliphatic alkenes aromatics and aromatic amines, nitro compounds, carboxylic acids, esters, ethers, aliphatic amines, alkyl halides and carbonyls in the moss indicating the presence of medicinally important compounds like flavonoids, terpenoids and alkaloids in the various solvent extracts of the moss. Conclusion: The overall result of the present study showed that the moss is rich in important pharmaceutical compounds and was reflected as its antioxidant potential. Further studies are warranted to isolate, identify and purify the lead terpenoid present in the moss.

Bryophytes: A Potential Source of Antioxidants

“…The phytochemical studies on Thuidium tamariscellum showed the presence of significant level of terpenoids in the moss. High antioxidant property shown by the plant is reported to be mainly due to the presence of considerable amount of terpenoids [38].…”

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“…The antioxidant properties of S. coronopifolius extract may be related to their chemical composition, such as the content of phenolic compounds or other substances isolated like bromoditerpenes and sulfated polysaccharides 11,12 . Some studies have shown that terpene compounds are responsible for a strong antioxidant activity 44,45,46 . Furthermore, de Menezesda Silveira et al, 33 found that a sample of Brazilian yellow propolis, which is rich in triterpenes showed antidepressantlike activities.…”

Liquid Chromatography-Mass Spectrometric Analyses of Potential Antioxidant Constituents from Zanthoxylum zanthoxyloides Leaves: Probing into the Role of Alkaloids

“…Terpenoids as antioxidants mop-up free radicals, react with peroxyl radicals, thereby terminating oxidative chain reactions. 19 Comparing the antioxidant activities of the n-butanol sub-fractions with the chemical class of compounds dereplicated (Figure 1 Figure 2).…”

“…The base peak chromatograms of the active sub-fractions and the compound spectra of the constituents tentatively characterized are presented in Figures S1 and S2 respectively. Many important potential active compounds such as pimpinellin (1), quercitrin (2), piperlonguminine (3), matairesinol (4), datiscin (5), savinin(26), stigmasterol (8), β-sitosterol (9), zanthosinamide (11), myricetin(12), eriocitrin (13), diosmin(14), magnoflorine (15), berberine(16), sesamin (hinokinin)(17), campesterol (10), kaempferol(18), dioxamin(19), rutin (30), marmesin (20), fagaramide (6), oxychelerythrine(28), scoparone(27), quercetin (7), arnottianamide(29), skimmianine(25), herclavine(24), lemairamin(23), fagaronine(22) and lupeol(21) have been tentatively characterized from Z. zanthoxyloides leaves. In this study, many phytochemicals such as coumarins (3), flavonoids(8), alkaloids(12), lignans (3) and triterpenes (4) were found in different VLC fractions of n-butanol soluble fraction of Z. zanthoxyloides leaves…”