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Search: authors:"Mesfin Redi-Abshiro"

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New fluorescence spectroscopic method for the simultaneous determination of alkaloids in aqueous extract of green coffee beans

Abshiro 0 Bhagwan Singh Chandravanshi 0 0 Department of Chemistry, College of Natural Sciences, Addis Ababa University , P.O. Box 1176, Addis Ababa , Ethiopia Background: There is no fluorescence

Development of new analytical methods for the determination of caffeine content in aqueous solution of green coffee beans

RediAbshiro 0 Bhagwan Singh Chandravanshi 0 0 Department of Chemistry, College of Natural Sciences, Addis Ababa University , P.O. Box 1176, Addis Ababa , Ethiopia Background: This study was conducted

Preparative HPLC for large scale isolation, and salting-out assisted liquid–liquid extraction based method for HPLC–DAD determination of khat (Catha edulis Forsk) alkaloids

Background Khat (Catha edulis Forsk) is an evergreen shrub of the Celastraceae family. It is widely cultivated in Yemen and East Africa, where its fresh leaves are habitually chewed for their momentary pleasures and stimulation as amphetamine-like effects. The main psychostimulant constituents of khat are the phenylpropylamino alkaloids: cathinone, cathine and norephedrine...

Non-destructive determination of ethanol levels in fermented alcoholic beverages using Fourier transform mid-infrared spectroscopy

Abshiro 0 Bhagwan Singh Chandravanshi 0 0 Department of Chemistry, Addis Ababa University , P.O. Box 1176, Addis Ababa , Ethiopia Background: Traditional fermented alcoholic beverages are indigenous to a