Dünnschicht-Chromatographie hydrophiler Arzneipflanzenauszüge. VIII. Mitteilung: Cumarine, Flavonderivate, Hydroxysäuren, Gerbstoffe, Anthracenderivate und Flechteninhaltsstoffe

Stahl, Egon; Schorn, P. J.

doi:10.1515/bchm2.1961.325.1.263

Cited by 70 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After that filter paper was analyzed under UV light and presence of coumarins was confirmed as yellow fluorescence [34]. Another confirmatory test was carried out; filter paper was sprayed with phenylboric acid, β-aminoethyl ester [35] and the presence of coumarins was confirmed.…”

Section: Methodsmentioning

confidence: 99%

In vitro antioxidant potential of dicliptera roxburghiana

Ahmad

Khan

Shah

et al. 2013

BMC Complement Altern Med

View full text Add to dashboard Cite

BackgroundStress caused by free radicals accumulation result into many hazardous diseases. A number of investigations are focusing to find out the plant oriented natural antioxidant moieties. The basic aim of this research was to investigate the antioxidant potential, total Phenolic and flavonoids contents and photochemical screening of the crude methanol extract and its derived various fractions Dicliptera roxburghiana of Acanthaceae family.MethodsCrude methanol extract of aerial parts of Dicliptera roxburghiana (DRME) was partitioned in to n-hexane (DRHF), chloroform (DRCF), ethyl acetate (DREF), n-butanol (DRBF) and the remaining soluble portion as residual aqueous fraction (DRAF). We evaluated the antioxidant activities of the extract and various fractions through different analytical methods such as DPPH, superoxide anion, ABTS, H2O2, hydroxyl radical and phosphomolybdate radical inhibition. In vitro lipid peroxidation and reducing power of the plant was also analyzed. Total flavonoid and phenolic contents of the extract and all fractions were also quantified. Plant was also subjected for preliminary phytochemical screening to confirm the presence or absence of various constituents in the plant.ResultsPhytochemical screening confirmed the presence of flavonoids, phenolics, tannins, alkaloids, saponins, terpenoids and coumarines. Quantitative analysis revealed the maximum amount of total phenolic and flavonoid contents in DRME while lowest in DRHF. Methanol extract, DREF, DRCF and DRBF exhibited promising antioxidant potential for DPPH, ABTS, H2O2, phosphomolybdate, superoxide anion and hydroxyl radical scavenging capabilities, while these were not appreciable for DRHF and DRAF. All fractions except DRHF and DRAF possess strong reducing power ability and showed appreciable lipid peroxidation inhibition.ConclusionThese research investigations revealed that Dicliptera roxburghiana is a potent source of natural antioxidants. Hence the plant can be used for management of different stress and anxiety related ailments.

show abstract

Section: Methodsmentioning

confidence: 99%

In vitro antioxidant potential of dicliptera roxburghiana

Ahmad

Khan

Shah

et al. 2013

BMC Complement Altern Med

View full text Add to dashboard Cite

show abstract

“…Separation on thin layers of silica gel was then introduced (Stahl & Schorn, 1961;Teichert, Mutschler & Rochelmeyer, 196 1) and confirmed the findings from paper separations. With improved eluting solvents based on aqueous methanolic ethyl acetate and the use of fast blue B salt (tetrazotized odianisidine, zinc chloride complex) and other colorimetric reagents, efficient separation and recognition of Aloe compounds became possible both on thin layers of silica gel (Horhammer et al, 1963a) and on paper (Bohme & Kreutzig, 1963).…”

mentioning

confidence: 69%

The compounds in Aloë leaf exudates: a review

Reynolds

1985

Botanical Journal of the Linnean Society

110

View full text Add to dashboard Cite

The drug Bitter Aloes has been used for several thousands of years because of its purgative properties and later several species of the plant have been cultivated for horticultural interest. In addition, many more local therapeutic properties have been recorded. Research has been largely directed towards the physiologically active components during the 50s and 60s. Extensions to this work in the last decade have been made in Germany, Japan and South Africa. Compounds have been characterized from the dried exudate prepared for drug purposes and from a few species. A number of anthraquinones have been recognized both in the free state and as glycosides. Other compounds with phenolic groups include chromones and a phenyl‐pyranone. Chromatographic methods have been developed for recognizing some of these compounds and estimating the levels of those of pharmacological interest. Distribution of some of the compounds among a number of species is described showing that among some groups it has taxonomic significance. The biology of secretion and exudation from Aloë leaves remains largely unknown although fragmentary evidence points to interesting and potentially useful activity in some of the components.

show abstract

“…The pure heptaacetates 3, 5, 7, and 9 were obtained upon acetylation and column chromatography. Ambonin (2) and neobanin (6) were characterized by a light yellow color with tetra-azotized benzidine (7) and with diazotized 4-nitroaniline (8) and orange with Mil-Ion's reagent (9), while they were not chromogenic to diazotized sulfanilic acid (10). Ambocin (4) and neobacin (8) developed a red-brown color with tetra-azotized benzidine, grey with Millon's reagent, and orange with diazotized sulfanilic acid but were inactive towards 4-nitroaniline.…”

Section: Resultsmentioning

confidence: 99%

Isoflavone Glycosides from Neorautanenia amboensis

Breytenbach¹

1986

J. Nat. Prod.

View full text Add to dashboard Cite

Dünnschicht-Chromatographie hydrophiler Arzneipflanzenauszüge. VIII. Mitteilung: Cumarine, Flavonderivate, Hydroxysäuren, Gerbstoffe, Anthracenderivate und Flechteninhaltsstoffe

Cited by 70 publications

References 0 publications

In vitro antioxidant potential of dicliptera roxburghiana

In vitro antioxidant potential of dicliptera roxburghiana

The compounds in Aloë leaf exudates: a review

Isoflavone Glycosides from Neorautanenia amboensis

Contact Info

Product

Resources

About