The green coffee bean is the name used for immature or unroasted coffee beans that are pale green in comparison to mature beans that have a brown or reddish color with a shade of yellow hue sometimes. These immature coffee beans are processed to remove the "mucilage" and the outer pulp; A waxy layer of the outer surface remains intact.
The "mucilage" is a glycoprotein and an exopolysaccharide, a thick and sticky substance produced by almost all plants and some microorganisms. It plays an important role in the germination of seeds by storing food and water. The dry coffee bean, which contains volatile and non-volatile compounds, weighs between 300 and 330 mg per grain.
In the middle of the new millennium, green caffeine began to be promoted as a supreme nutritional and health supplement. The chlorogenic acid content of green coffee has been the focus of many clinical trials; It is being used in health supplements to lose weight and diet programs for its lipolytic properties.
The contents of green coffee
Green coffee contains volatile and nonvolatile compounds, alkaloids, amino acids, carbohydrates, lipids, and proteins. Caffeine is the most common alkaloid present in both green and roasted coffee and is not affected by any change in coffee ripening grains from green to brown. We find others as libertines in lower percentages; The concentration of theophylline, an alkaloid that is also found in green tea, is reduced by roasting coffee beans, while others remain unchanged. Are you want to storage your green coffee perfectly? Look some
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The facts about the Green Coffee content make an interesting read
• Proteins represent about 12% of the composition of green coffee beans; Most of these degrade to free amino acids during the ripening process. The degradation is caused by organic acids such as chlorogenic acid. Enzymes such as catalase, oxidase, and polyphenol from the other proteins that are necessary for the green coffee ripening process.
• Carbohydrates represent 50% of the dry weight of the grain, but do not make a significant contribution to flavor.
• The total lipid content could be 11.7 g to 14 g per 100 grams of dry coffee. The most prominent lipids in green coffee are amides,
arachidic acid, diterpene, esters, linoleic acid, oleic acid, palmitic acid, stearic acid, triglycerides, and long-chain unsaturated fatty acids.
• The chlorogenic acid found in green caffeine is part of a compound group called phenolic acids, an antioxidant group. More than 70% of this valuable component is lost during roasting. Only 30 mg residuals per gram remain in roasted grain.
• Volatile compounds include nitrogen-containing molecules that cause an unpleasant smell and taste in green coffee beans. These compounds sometimes also cause nausea and vomiting in the smell inhalation. Although green coffee beans contain more antioxidants and vitamins, they cannot use them to prepare drinks; Roasting allows the molecules to release the fresh and pleasant aroma, which is more conducive to consumption. However, many of the vitamins and antioxidants are lost in the roasting process.