CFTRI Technology on Green Coffee Extract

14 Jun 2019
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SME CORNER Expert column
Dr.Pushpa S Murthy ,Principal Scientist, Department of Spice and flavor science, CSIR - CFTRI

Coffee is one of the most consumed beverages and generally known for its distinct aroma and taste that favours the taste buds of most of the consumers. Green coffee is a major dietary source of polyphenols and phenolic acids. Polyphenols are the chief source of plant- based foods and beverages especially apples, berries, cocoa, tea, coffee, citrus, plums, broccoli and many others and cannot be synthesized by humans. Green coffee beans are raw, unroasted beans with biochemical compounds such as caffeine, dietary polyphenols especially Chlorogenic acid, amino acids, lipids, carbohydrates, vitamin –B complex and Vitamin C, lots of minerals and enzymes. Green coffee beans are the prime source of hydroxycinnamic acids. The most abundant coffee polyphenols are Caffeic acid and its derivative Chlorogenic acid (CGA). Polyphenols are actually secondary metabolites produced or synthesized by plants and are being used for their defence mechanism against several biological and environmental stress. Several substantial epidemiological studies confirmed that polyphenol-rich diet can protect/ reduces the high risk of cardiovascular diseases and type 2 diabetes. The commonly recommended polyphenols in the diet are flavanols, flavanones, flavonols, and anthocyanins. The coffee what we prefer is roasted coffee beans which are ready to brew. The roasting process changes the colour, flavour and odour of green beans leading to 11-45 % polyphenol degradation and 8-10% degradation of Chlorogenic acid.

Green coffee bean extract concocted from unroasted green beans that give typical greenish colour to the beverage with mild and refreshing flavour along with a package of health benefits. Coffee offers dose dependent response in consumers, hence moderate consumption of green coffee is good for health, unless opted for a refined formulation for easing a specific health problem.The technology for processing of green coffee extract using green coffee beans has been developed at CFTRI. The institute has the necessary expertise to provide technical assistance and guidance for commercializing the technology.