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Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung Nächste Überarbeitung Beide Seiten der Revision | ||
coffea_canephora_pierre_ex_froehner [2016/05/11 13:56] andreas |
coffea_canephora_pierre_ex_froehner [2016/05/11 14:58] andreas |
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Shrub or small tree, 4-8m tall, native to tropical Africa, naturalized and commonly cultivated win tropics; leaves elliptic, elliptic-oblong, | Shrub or small tree, 4-8m tall, native to tropical Africa, naturalized and commonly cultivated win tropics; leaves elliptic, elliptic-oblong, | ||
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+ | „The volatile components of roasted Arabica and Robusta coffees (powder and brew) were analysed by gas chromatography-olfactometry (GC/O) which revealed the odorants having the highest odor-activity values (ratio of concentration to odor threshold). This procedure resulted in 38 odorants of which 32 were identified. The powders of the two coffee varieties differed in the concentration levels of these compounds. The results indicate that the flavor difference between Arabica and Robusta coffee (powder and brew) are mainly due to the predominance of enoloxo compounds (sotolon, abhexon, furaneol, 3, | ||
+ | [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. \\ | 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 2 at Aanakkulam, Author: Jeevan Jose, Kerala, India (2010), [[https:// | + | Coffea canephora 2 at Aanakkulam, Author: Jeevan Jose, Kerala, India (2010) |