Search Results

You are looking at 91 - 94 of 94 items for :

  • Refine by Access: All Content x
Clear All
Physiology International
Authors: V Buko, I Kuzmitskaya, S Kirko, E Belonovskaya, E Naruta, O Lukivskaya, A Shlyahtun, T Ilyich, A Zakreska, and I Zavodnik

(29)-ene-3, 28-diol] is a pentacyclic triterpene, which is widely distributed in many plants. In birch bark extracts, the contents of betulin can vary from 54% to 82% of dry weight ( 31 ). Betulin acts as a direct scavenger of free oxygen radicals ( 34

Restricted access

were performed on several different HILIC columns: silica, cyano, amino and diol. The amino column was selected as the most suitable stationary phase for further analysis. In preliminary studies, acetonitrile was selected as the organic component of the

Open access

-acetoxyscirpen-3, 4-diol . J Antibiot (Tokyo) 31 , 485 – 486 ( 1978 ). 10.7164/antibiotics.31.485 17. Claridge , C. A. , Schmitz , H

Restricted access
Acta Botanica Hungarica
Authors: S. Y. Kondratyuk, L. Lőkös, I. Kärnefelt, A. Thell, M.-H. Jeong, S.-O. Oh, A. S. Kondratiuk, E. Farkas, and J.-S. Hur

. Chemistry: Cortex K+ yellow, C–, KC–, P+ yellow; medulla or its upper portion K+ yellow, C–, P–; lower surface K+ violet; containing atranorin (major), zeorin (major), 16β-acetoxyhopane-6α,22- diol (major), leucotylin (minor), 7-chloroemodin (minor), flavo

Restricted access