Six compounds were isolated from Derris laxiflora Benth., including two new pterocarpans, 7,6'-dihydroxy-3'-methoxypterocarpan (1) and derrispisatin (2), as well as four known ones, lespedezol D, (3), secundiflorol 1 (4), 6a-hydroxymaackiain (5) and pisatin (6). The structures of these compounds were determined by analysis of their spectroscopic data.

Rauwolfia serpentina, Benth, commonly known as Insanity herb has been used for a long time in Ayurvedic System of Indian Medicine. It has been highly advocated as a general sedative in sleeplessness, anxiety neurosia and hysteria and in the treatment of epilepsy, maniacal and acute insanity. Siddiqui & Siddiqui (19321935) studied the chemistry of some of the active principles extracted from the...

Latar Belakang: Akumulasi asprin menghasilkan senyawa reaktif berupa radikal bebas yang menginduksi terjadinya stres oksidatif sehingga akan mepengaruhi fungsi ginjal. Ekstrak etanol daun C. blumei Benth mengandung metabolit sekunder golongan alkaloid, flavonoid, saponin, fenol, antrakuinon, tanin, dan steroid memiliki kemampuan mencegah pembentukan bebas, antiinflamasi memperbaiki Penelitian i...

Three new species of Epicephala Meyrick, 1880 are described based on specimens reared from fruits of Phyllanthusmicrocarpus (Benth.): Epicephalamicrocarpa sp. n. and Epicephalalaeviclada sp. n. from Guangxi and Hainan, and Epicephalatertiaria sp. n. from Guangdong and Guangxi. Photographs of adults and illustrations of genital structures are provided.

Diurnal and seasonal patterns of leaf gas exchange and water relations were examined in tree species of contrasting leaf phenology growing in a seasonally dry tropical rain forest in north-eastern Australia. Two drought-deciduous species, Brachychiton australis (Schott and Endl.) A. Terracc. and Cochlospermum gillivraei Benth., and two evergreen species, Alphitonia excelsa (Fenzal) Benth. and A...

This study aimed to assess the chemical composition of essential oils Elsholtzia blanda (Benth.) Benth. in Lam Dong Province, Viet Nam, and evaluate their biological activities. Essential obtained by hydro-distillation aerial parts E. were analyzed gas chromatography-mass spectrometry (GC-MS). Thirty-one constituents identified oil, oil was predominantly monoterpenoid, with camphor (25.14%), ca...