Spectroscopy of major Biochemical Compounds of Coffee Beans: Caffeine, Chlorogenic, UV-Vis Spectroscopy - Couverture souple

Belay, Abebe

 
9783838375601: Spectroscopy of major Biochemical Compounds of Coffee Beans: Caffeine, Chlorogenic, UV-Vis Spectroscopy
Couverture souple
ISBN 10 : 3838375602 ISBN 13 : 9783838375601
Editeur : LAP Lambert Academic Publishing, 2010

Synopsis

The molecular spectroscopy which works in the wavelength regions of UV-Vis have various applications. For quantitative determination species in mixtures, characterization of pure compound, identification of the presence or absence of a particular species in a mixture or certain functional groups in a compound. It also used to study self-association, hetero-association and thermodynamic properties of compound.Thus, in this research, the contents of caffeine and chlorogenicacids in coffee beans have been investigated by spectroscopic and theoretical methods.In addition, the optical transition properties of caffeine, caffeic and 5-caffeoylquinic acids were determined in different solvents by integrating the absorption coefficients. Moreover, the concentration dependent self-association of caffeic, 5-caffeoylquinic acids and their hetero- association were analyzed by dimer model and Benesi- Hildebrand approaches. The thermodynamic parameters, enthalpy, Gibbs free energy and entropy of dimerzation reactions were calculated from van't Hoff equation.

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À propos de l?auteur

Abebe has obtained his BSc and Msc in Physics from Addis Ababa University, Ethiopia. He has published several papers on International journals related to spectroscopy of major biochemical compounds in coffee beans. Abebe has 17 years work experinces in teaching undergradute courses at university, teachers college and TTI.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP Lambert Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3838375602
ISBN 13 
9783838375601
Reliure
Broché
Nombre de pages
112
Coordonnées du fabricant
non disponible
Personne responsable
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