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Coffee is a beverage brewed from roasted, ground coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulating effect on humans, primarily due to its caffeine content. However, decaffeinated coffee is commercially available and there are even various coffee substitutes. Coffee has the highest sales in the world market for ...
Coffee is a beverage brewed from roasted, ground coffee beans. Darkly colored, bitter, and slightly acidic, coffee has a stimulating effect on humans, primarily due to its caffeine content, but decaffeinated coffee is also commercially available. There are also various coffee substitutes. Typically served hot, coffee has the highest sales in ...
The chemical complexity of coffee is emerging, especially due to observed physiological effects which cannot be related only to the presence of caffeine. Moreover, coffee contains an exceptionally substantial amount of antioxidants such as chlorogenic acids, hydroxycinnamic acids, caffeine and Maillard reaction products, such as melanoidins. [3]
Coffea arabica (/ ə ˈ r æ b ɪ k ə /), also known as the Arabica coffee, is a species of flowering plant in the coffee and madder family Rubiaceae.It is believed to be the first species of coffee to have been cultivated and is the dominant cultivar, representing about 60% of global production. [2]
The fruit is often referred to as a "coffee cherry", and it contains two seeds, called "coffee beans". [9] Despite these terms, coffee is neither a true cherry (the fruit of certain species in the genus Prunus) nor a true bean (seeds from plants in the family Fabaceae). In any coffee crop, about 5–10% of fruits contain only a single bean.
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Often, Marino says, people have mixed success with using coffee grounds for their plants, which she says could be due to the type of coffee grounds being used.
Low-acid coffee uses non-treated green coffee beans and does not include any additives. It has a lower concentration of acidic compounds, particularly chlorogenic acids, resulting in a higher pH and less acidic taste compared to regular coffee. [2] [3] The average pH of coffee ranges from 4.85 to 5.1, with a standard deviation of 0.2. Factors ...