Among the many by-products of coffee production, coffee husk is produced in large quantities in coffee-producing countries like Ethiopia. Apart from that, the husk highly pollutes environment since the majority of coffee-processing industries dispose it into open air where the compounds contained in coffee husks represent threat to environment. Analysis of the detrimental effects of coffee husks on the environment. In the present work, five concentrations of husk extracts (5%, 10%, 15%, 20%, and 25%) mgl-1 were experimentally analysed for extractable phenolic, chlorogenic acid (CGA), caffeine, tannin, and trigonelline, respectively, for coffee husk collected from Buno Bedele and Illubabor zones of the Oromia Region Government, Ethiopia. The coffee husk contained 56% of chlorogenic, 58% of caffeine, and 60% of total extractable tannins. The findings showed incrementally increasing acidic elements that have an environmental impact
Key words: Caffeine, chlorogenic, tannins, UV/Vis Spectrophotometry, coffee husk
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