RRC ID 19120
Author Hashim NM, Rahmani M, Ee GC, Sukari MA, Yahayu M, Amin MA, Ali AM, Go R.
Title Antioxidant, antimicrobial and tyrosinase inhibitory activities of xanthones isolated from Artocarpus obtusus F.M. Jarrett.
Journal Molecules
Abstract One of the most promising plants in biological screening test results of thirteen Artocarpus species was Artocarpus obtusus FM Jarrett and detailed phytochemical investigation of powdered dried bark of the plant has led to the isolation and identification of three xanthones; pyranocycloartobiloxanthone A (1), dihydroartoindonesianin C (2) and pyranocycloartobiloxanthone B (3). These compounds were screened for antioxidant, antimicrobial and tyrosinase inhibitory activities. Pyranocycloartobiloxanthone A (1) exhibited a strong free radical scavenger towards DPPH free radicals with IC50 value of 2 µg/mL with prominent discoloration observed in comparison with standard ascorbic acid, α-tocopherol and quercetin, The compound also exhibited antibacterial activity against methicillin resistant Staphylococcus aureus (ATCC3359) and Bacillus subtilis (clinically isolated) with inhibition zone of 20 and 12 mm, respectively. However the other two xanthones were found to be inactive. For the tyrosinase inhibitory activity, again compound (1) displayed strong activity comparable with the standard kojic acid.
Volume 17(5)
Pages 6071-82
Published 2012-5-21
DOI 10.3390/molecules17056071
PII molecules17056071
PMID 22614861
PMC PMC6268949
MeSH Anti-Infective Agents / chemistry Anti-Infective Agents / pharmacology* Antioxidants / chemistry Antioxidants / pharmacology* Artocarpus / chemistry* Bacteria / drug effects Enzyme Inhibitors / chemistry Enzyme Inhibitors / pharmacology* Fungi / drug effects Inhibitory Concentration 50 Monophenol Monooxygenase / antagonists & inhibitors* Plant Extracts / chemistry Plant Extracts / pharmacology* Xanthones / chemistry Xanthones / isolation & purification Xanthones / pharmacology*
IF 3.267
Times Cited 25
General Microbes JCM 2412