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--- coffea_canephora_pierre_ex_froehner [2016/05/11 13:56]
andreas
+++ coffea_canephora_pierre_ex_froehner [2016/05/11 14:56]
andreas
@@ Zeile 3: / Zeile 3: @@
 Shrub or small tree, 4-8m tall, native to tropical Africa, naturalized and commonly cultivated win tropics; leaves elliptic, elliptic-oblong, or ovate-oblong, crisped-undulate, apex acuminate; inflorescences with 1-3 cymes in each axil, each cyme 3-6-flowered; corolla white to pink, funnelform, tube 5-16 mm; lobes (5-7, elliptic, 8-19 mm; drupe red, subglobose, 10-12mm in diam. "This species is diploid and is cultivated as //Robusta Coffee//. It has been widely hybridized with several other species to produce commercial coffee plants. [[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200022077]]
+Alkylpyrazines like 3,5-dimethyl-2-ethylpyrazine and 2,3-diethyl-5-methylpyrazine and guaiacols like 4-ethylguaiacol and 4-vinylguaiacol were responsible for the “spicy, harsh-earthy” aroma of the Robusta coffee. \\
+[Aroma impact compounds of arabica and robusta coffee. Qualitative and quantitative investigations. Blank, I., Sen, A.,Grosch, W., In Quatorzieme colloque scientifique international sur le cafe, San Francisco, 14-19 juillet 1991, 117-129)]
 In various roasted Robusta coffee samples, 2-methylisoborneol was found at 120-430 ng/kg (dry matter) and assigned as earthy smelling character impact compound. \\
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 {{:coffea_canephora.jpg?800}} \\
-Coffea canephora 2 at Aanakkulam, Author: Jeevan Jose, Kerala, India (2010), [[https://creativecommons.org/licenses/by-sa/4.0/legalcode|Creative Commons Attribution-ShareAlike 4.0 International License]]
+Coffea canephora 2 at Aanakkulam, Author: Jeevan Jose, Kerala, India (2010) \\ [[https://creativecommons.org/licenses/by-sa/4.0/legalcode|Creative Commons Attribution-ShareAlike 4.0 International License]]

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