Qualitative relationship between caffeine and chlorogenic acid contents among wild species

Autor:	M. Noirot, Claudine Campa, Sylvie Doulbeau, Stéphane Dussert, Serge Hamon
Rok vydání:	2005
Předmět:	Wild species Rubiaceae Coffea General Medicine Phenolic acid Biology biology.organism_classification Analytical Chemistry chemistry.chemical_compound Chlorogenic acid chemistry Content distribution Botany Dry matter Food science Caffeine Food Science
Zdroj:	Food Chemistry. 93:135-139
ISSN:	0308-8146
Popis:	Chlorogenic acids, sensu largo (CGA), are secondary metabolites of great economic importance in coffee: their accumulation in green beans contributes to coffee drink bitterness. Previous evaluations have already focussed on wild species of coffee trees, but this assessment included six new taxa from Cameroon and Congo and involved a simplified method that generated more accurate results. Five main results were obtained: (1) Cameroon and Congo were found to be a centre of diversity, encompassing the entire range of CGA content from 0.8% to 11.9% dry matter basis (dmb); (2) three groups of coffee tree species – CGA1, CGA2 and CGA3 – were established on the basis of discontinuities; (3) means were 1.4%, 5.6% and 9.9% dmb, respectively; (4) there was a qualitative relationship between caffeine and ACG content distribution; (5) only a small part of the CGA is trapped by caffeine as caffeine chlorogenate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::435dee17811febc5dcc3196d245c4b2e https://doi.org/10.1016/j.foodchem.2004.10.015 Zobrazit plný text záznamu Full Text from ScienceDirect