Study of the Major Flavonoids from zingeber officinle bark by UV-Visible Spectroscopy

Eltayeb, Amina Abbas Yousif; Supervisor, -Mohamed Abdel karim Mohamed

SUST Home
→
Theses and Dissertations
→
College of Science
→
Masters Dissertations : Science
→
View Item

Study of the Major Flavonoids from zingeber officinle bark by UV-Visible Spectroscopy

Eltayeb, Amina Abbas Yousif; Supervisor, -Mohamed Abdel karim Mohamed

URI: http://repository.sustech.edu/handle/123456789/25771

Date: 2016-09-01

Abstract:

Phytochemical screening of the stem bark of Zingiber officiale revealed the presence of tannins,flavonoids and alkaloids. The bark of this species was macerated with 95% ethanol. A silica gel column developed with chloroform:methanol(3:2;v:v) gave apure flavonoid compound I. The structure of this isolate was elucidated using UV and IR data and The following partial structure was proposed: