lycium species is a popular medicinal plant in the traditional chinese medicine and lycium ruthenicum is a native medicinal plant of iran. lycium genus has several biologically important properties too. investigation of chemical composition of ethyl acetate extract of this plant is the goal of this study. two coumarins (scopoletin and sculetin) and methyl-2-hydroxy-4-undecanoxy-trans-cinamate w...

The coumarins: scopoletin, esculetin and fraxetin were isolated from the flowers of horse chestnut (Aesculus hippocastanum L., Hippocastanaceae) and identified by spectrophotometric methods (UV, 1H, 13C NMR, ESI-MS). Their content, determined using the Ultra Performance Liquid Chromatography (UPLC), was 0.41, 0.13 and 0.05%, respectively.

Three quassinoids, iandonosides A and B and iandonone, were isolated from the root of Eurycoma harmandiana, along with five known quassinoids, casteloside B, 13 beta, 21-dihydroeurycomanone, chaparrinone, glaucarubolone and ailanquassin B as well as the coumarin, scopoletin. The structural elucidations were based on analyses of spectroscopic data.

Cassava tubers suffer from postharvest physiological deterioration (PPD) which normally sets in within 72 hours of harvest. This study examines the role scopoletin and carotenoids onset or delay PPD two transgenic varieties EC20-7 EC20-8 compared to a wild variety TME-7. Scopoletin were quantified by liquid chromatography-mass spectrometry. The content (0.10 – 0.20 nmol/g) fresh was n...

Black Pigment Concentrating Factor in the Fiddler Crab: M. Fingerman . 585 Detection of Complement-Fixing Antibodies for Carre's Virus: J. E. Prier, B. S. Wright, S. S. Kalter . 586 Observations at an Ancient Smelting Site in Negev: V. P. Sokoloff and A. Seroussi .5 87 Cocarcinogens and Minimal Carcinogenic Doses: W. E. Poel . 588 Preliminary Report on Biological Applications of Color Televisio...