𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Identification and quantification of betulinic acid

✍ Scribed by Tino Galgon; Dirk Höke; Birgit Dräger

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
65 KB
Volume
10
Category
Article
ISSN
0958-0344

No coin nor oath required. For personal study only.

✦ Synopsis

Betulinic acid was identified in the bark and in the wood of Platanus acerifolia (plane) and of Betula pendula (white birch) by thin layer chromatography, gas chromatography (GC), GC coupled with mass spectrometry (MS), electrospray ionisation MS, and 1 H-nuclear magnetic resonance spectroscopy. Quantitative analysis by GC after derivatisation under mild silylating conditions and using squalane as internal standard showed 3.3% betulinic acid in the cork of plane while the wood content was much lower. The bark of white birch contained 0.3% betulinic acid.

📜 SIMILAR VOLUMES

In vitro and In vivo evaluation of betul
In vitro and In vivo evaluation of betulinic acid as an antimalarial
✍ J. C. P. Steele; D. C. Warhurst; G. C. Kirby; M. S. J. Simmonds 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 67 KB 👁 2 views

The lupane-type triterpene betulinic acid was isolated from an ethanol extract of the root bark of the Tanzanian tree Uapaca nitida Mu ¨ll-Arg. (Euphorbiaceae). The in vitro antiplasmodial IC 50 values of betulinic acid against chloroquine resistant (K1) and sensitive (T9-96) Plasmodium falciparum w

Identification and quantification of irr
Identification and quantification of irradiation in UHMWPE throughtrans-vinylene yield
✍ Muratoglu, Orhun K. ;Harris, William. H. 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 482 KB

trans-Vinylene unsaturations generated in ultrahigh-molecular-weight polyethylene (UHMWPE) after radiation treatment scales linearly with the absorbed dose level, and can serve as an internal dosimeter for determining the radiation dose level for sterilizing or crosslinking UHMWPE. We measured the t