Chemical diversity in coffee species of genebank of Instituto Agronômico do estado

The objective of this work was to group different coffee species present in the genebank of the Instituto Agronômico by using some chemical variables. A total of thirty-nine plants belonging to seven species were analyzed for chemical seed components (soluble solids, lipids, trigonelline, chlorogenic acids and caffeine). The results evidenced that species could be grouped by lipids, chlorogenic acid, trigonelline and caffeine. The existence of great variation among and within species ranging from 24.12 to 30.65% for soluble solids; 8.68 to 17.49% for lipids; 0.32 to 2.15% for trigonelline; 2.91 to 6.38% for chlorogenic acid and 0.80 to 2.50% for caffeine was also observed, indicating the possibility to select plants of interest for the improvement of cultivated coffee species. 1 Centro de Café “Alcides Carvalho”, Instituto Agronômico (IAC/APTA), C. P. 28, 13.001-970, Campinas, SP, Brasil. *E-mail: [email protected] 2 Departamento de Produção Vegetal, ESALQ/USP, C. P. l 9, 13.418-900, Piracicaba, SP, Brasil Adriano Tosoni da Eira Aguiar1*, Luiz Carlos Fazuoli1, Terezinha de Jesus Garcia Salva1, and José Laércio Favarin2 Received 8 April 2005 Accepted 20 September 2005