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Chemical composition, total phenolic and flavonoid contents, and in vitro antimicrobial and antioxidant activities of crude extracts from red chilli seeds (Capsicum frutescens L.)
Abstract The objectives of present study were to assess the antimicrobial and antioxidant potential of Capsicum frutescens L. seeds and to characterize the chemical constituents of the crudeExpand
New principles from seeds of Nigella sativa
TLDR
A new triterpene saponin and known steroidal glucoside were isolated from the alcohol extract, and a new cycloartenol from n-hexane extract of seeds of Nigella sativa L. showed antimicrobial activity. Expand
Antidiabetic activity of medium-polar extract from the leaves of Stevia rebaudiana Bert. (Bertoni) on alloxan-induced diabetic rats
TLDR
Stevia extract was found to antagonize the necrotic action of alloxan and thus had a re-vitalizing effect on β-cells of pancreas and thus caused hypoglycemia and greater reduction in body weight, which are the most worrisome effects of these drugs. Expand
Extraction of Artemisinin, an Active Antimalarial Phytopharmaceutical from Dried Leaves of Artemisia annua L., Using Microwaves and a Validated HPTLC-Visible Method for Its Quantitative Determination
A simple, rapid, precise, and accurate high-performance thin-layer chromatographic method coupled with visible densitometric detection of artemisinin is developed and validated. Samples of the driedExpand
The essential oil of inula racemosa
Abstract The essential oil of Inula racemosa was found to contain mainly sesquiterpenes ( ca 60%), although the most abundant constituent was heptadeca-1,8,11,14-tetraene (aplotaxene) at ca 22%.Expand
Novel steroids from the seeds of Centratherum anthelminticum
TLDR
Two novel and two known steroids were isolated respectively from benzene: acetone and ethanolic extracts of the seeds of C. anthelminticum and (24α/R)-Stigmasta-7-en-3-one, which were tested against several human pathogenic bacteria and fungi. Expand
Structure elucidation by NMR spectroscopy of a new acetylated saponin from Centratherum anthelminticum.
TLDR
A new glycosylated triterpene has been isolated from the seeds of Centratherum anthelminticum, a medicinally important plant, and was shown to contain hederagenin and six sugar residues forming two Glycosyl chains. Expand
Isolation and characterization of new compounds from seeds of Nigella sativa
Two new triterpenoids were isolated from the n-hexane extract of seeds of Nigella sativa Linn. and identified as cycloart-23-methyl-7,20,22-triene-3β,30-diol (1) and cycloart-3-one-7,22-diene-24-olExpand
Novel Lipid Constituents Identified in Seeds of Nigella sativa (Linn)
Novel lipids were isolated from the unsaponifiable matter extracted from seeds of Nigella sativa Linn by using n-hexane. The new dienoate and two monoesters were the new lipids identified by spectralExpand
Two new lipid constituents of Nigella sativa (Seeds)
The hexane extract of Nigella saliva seeds yields two new aliphatic compounds. The compounds have been characterized as 16-triecosen-7-ol 1 and 6-nonadecanone 2 using IR, 1 H NMR, 1 3 C NMR, EIMS andExpand
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