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Antioxidant and cytotoxic flavonoids from the flowers of Melastoma malabathricum L.
Abstract Phytochemical and bioactivity studies of the flowers of Melastoma malabathricum L. (Melastomataceae) have been carried out. The ethyl acetate extract yielded three compounds, identified asExpand
ABSTRACT Phytochemical and bioactivity studies of the leaves of Melastoma malabathricum L. (Melastomataceae) have been investigated. The n-hexane extract yielded -amyrin, patriscabatrine andExpand
Antioxidant and Anti-inflammatory Activities of Essential Oil and Extracts of Piper miniatum
The essential oil exhibited significant activity in both models as an anti-inflammatory agent, and the n-hexane extract showed strong activity with inhibition of 85.9% in the TPA-induced mouse ear edema model, while the chloroform extract showed the highest activity in the lipoxygenase assay. Expand
Comparative study of the essential oils of three Beilschmiedia species and their biological activities
Summary This study was designed to examine the chemical compositions of the essential oils from three Beilschmiedia species and antioxidant, antimicrobial, antityrosinase, acetylcholinesterase andExpand
Essential oil compositions of Malaysian lauraceae: A mini review
The chemical compositions and biological activities of Malaysian Lauraceae are summarized and updated and four genera which are Lindera, Beilschmiedia, Litsea, and Cinnamomum have been studied for their essential oil compositions in Malaysia. Expand
Antibacterial Activity and Cytotoxicity Screening of Sumatran Kaduk (Piper sarmentosum Roxb.)
Phytochemical investigations of Piper sarmentosum Roxb., yielded four compounds; three amides, identified as 3-(3’,4’,5’-trimethoxyphenylpropanoyl) pyrrolidine, 3-(4’-methoxyphenylpropanoyl) pyrrole,Expand
Cytotoxic Activities of Fractions and Two Isolated Compounds from Sirih Merah (Indonesian red betel), Piper Crocatum Ruiz & Pav.
Abstract Cytotoxic Cytotoxic activity investigation using brine shrimp lethality test on fractions based on polarity of solvents have been done. Inhibition concentration values of three fractions ofExpand
Amides, triterpene and flavonoids from the leaves of Melastoma malabathricum L.
Three phenolic constituents were found to be active as free radical scavengers, with quercetin being the strongest radical scavenger in the UV method and quercitrin and kaempferol-3-O-(2″,6″-di-O-p-trans-coumaroyl)-β-glucoside showing moderate radical scavenging. Expand
Chemical Compositions, Antioxidant and Antimicrobial Activity of the Essential Oils of Piper officinarum (Piperaceae)
The stems oil showed weak activity in the DPPH system, but showed moderate lipid peroxidation inhibition in the β-carotene-linoleic acid system, and both oils showedWeak activity against P. aeruginosa and E. coli with M IC values of 250 μg/mL. Expand
Cytotoxic, Anti-Inflammatory and Adipogenic Effects of Inophyllum D, Calanone, Isocordato-oblongic acid, and Morelloflavone on Cell Lines
This paper reports in vitro cytotoxic, anti-inflammatory and adipocyte diffentiation with adipogenic effects of coumarins inophyllum D (1) and calanone (2), and a chromanone carboxylic acid namelyExpand