Coffee bean such fatty acids – 3-methyl-valeric acid (sour, green-herbaceous, unpleasant odor), acetaldehyde (pungent-nauseating odor, even when highly diluted, present in dried green coffee beans at concentrations of about 5 mg/kg), propanal (choking effect on respiratory system, penetrating-nauseating), butanal (nauseating effect, present in dried green coffee beans at 2 to 7 mg/kg), or pentanal (very repulsive nauseating effect). Coffee bean A coffee bean is a seed of the coffee plant and the source for coffee. It is the pit inside the red or purple fruit often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called
History of coffee reference to the drink's reputation as an appetite suppressant. The word "qahwah" is sometimes alternatively traced to the Arabic "quwwa" ("power, energy"), or to Kaffa, a medieval kingdom in Ethiopia whence the plant was exported to Arabia. These etymologies for "qahwah" have all been disputed, however. The name "qahwah" is not used for the berry or plant (the products of the region), which are known in Arabic as "bunn" and in Oromo as "būn". Semitic had a root "qhh" "dark color", which became a natural designation for the beverage. According to this analysis, the feminine form "qahwah" (also meaning "dark