{"product_id":"spectroscopy-of-major-biochemical-compounds-of-coffee-beans-von-abebe-belay","title":"Spectroscopy of major Biochemical Compounds of Coffee Beans","description":"\u003cp\u003eThe 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.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838375601\"\u003e\u003ch3\u003eCaffeine, Chlorogenic, UV-Vis Spectroscopy\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838375601","offer_id":39469133791325,"sku":"9783838375601","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/de576a3a-759e-4093-af62-6b0d062f197b.jpg?v=1737267270","url":"https:\/\/shop.autorenwelt.de\/products\/spectroscopy-of-major-biochemical-compounds-of-coffee-beans-von-abebe-belay","provider":"Autorenwelt Shop","version":"1.0","type":"link"}