Heng Yen Khong

TL;DR: In this article, the chemical compositions of the essential oils from three Beilschmiedia species and antioxidant, antimicrobial, antityrosinase, acetylcholinesterase and anti-inflammatory activities were examined.

TL;DR: In this article, a GC and GC-MS of the aceites esenciaales de hojas and tallos of P. ribesioides were used to determine the actividades antioxidante and antimicrobiana.

TL;DR: A new oligostilbenoid tetramer was isolated from the acetone extract of the stem bark of Dryobalanops lanceolata along with seven oligostILbenoids tetramers along with the antibacterial activity of the isolated compounds was evaluated using resazurin microtitre-plate assay.

TL;DR: Two new phenanthrene alkaloids were isolated from the stem bark of Beilschmiedia glabra, together with lupeol, taraxerol, and 24-methylenelanosta-7,9-diene-3β-15α-diol, and the structures of the isolated compounds were elucidated by extensive spectroscopic data analysis and comparison with respective literature data.

TL;DR: In this article, a new trimeric oligostilbene, malaysianol D and galloylglucoside,malaysin A, together with twelve known compounds (3, 14) have been isolated from the methanol extract of the stem bark of Dryobalanops beccarii by combination of vacuum and radial chromatography techniques.