𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Identification and determination of triterpenoids in Hieracium pilosella L.

✍ Scribed by Monika Gawrońska-Grzywacz; Tadeusz Krzaczek

Book ID
102924559
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
695 KB
Volume
30
Category
Article
ISSN
1615-9306

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Fractions of triterpenoids have been isolated from herb, inflorescences, and rhizomes with roots of Hieracium pilosella by typical extraction with petroleum ether. The fraction from inflorescences was investigated using GC‐MS techniques. The occurrence of α‐ and β‐amyrin, taraxerol, taraxasterol, and fern‐7en‐3β‐ol has been observed. Quantitative analysis was also performed and taraxasterol is distinctly predominant in this triterpenoid fraction. Thin‐layer chromatography on silica gel was performed on all the investigated fractions and additionally revealed the occurrence of lupeol and ψ‐taraxasterol in vestigial quantities. All of the triterpenoid components are reported for the first time in the investigated plant.

📜 SIMILAR VOLUMES

Effect of extracts of Orthosiphon stamin
Effect of extracts of Orthosiphon stamineus benth, Hieracium pilosella l., Sambucus nigra l. and Arctostaphylos uva-ursi (l.) spreng. in rats
✍ D. Beaux; J. Fleurentin; F. Mortier 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB

Aqueous extracts of Sambucus nigra and Arctostaphylos uva-ursi and hydroalcohol extracts of Orthosiphon stamineus and Hieracium pilosella were tested for their diuretic activities in rats; pharmacological evaluation revealed that they led to an increase in urine flow. Urinary sodium excretion in rat

Effect of extracts of Orthosiphon stamin
Effect of extracts of Orthosiphon stamineus benth, Hieracium pilosella L., Sambucus nigra L. and Arctostaphylos uva-ursi (L.) spreng. in rats
✍ D. Beaux; J. Fleurentin; F. Mortier 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 87 KB

Aqueous extracts of Sambucus nigra and Arctostaphylos uva-ursi and hydroalcohol extracts of Orthosiphon stamineus and Hieracium pilosella were tested for their diuretic activities in rats; pharmacological evaluation revealed that they led to an increase in urine flow. Urinary sodium excretion in rat

Identification and determination of impu
Identification and determination of impurities in salicylanilide
✍ Norman E. Skelly 📂 Article 📅 1970 🏛 Elsevier Science 🌐 English ⚖ 659 KB

## Salicylanilide is a white, crystalline solid which has found extensive use as a fungicide'-" and bacteriostat". In recent years there has been considerable interest in this product as a starting material for the production of halogenated salicylanilides"~0. Laboratory, pilot plant, and producti