Abstract

In this study methanolic extract of one plant namely Arabic coffee, were screened for the presence of analysis Constituents and tested for their of liquid chromatographic separation (HPLC). The quantitative HPLC analysis revealed the results showed presence of Caffeine, chlorogenic acid (CGA) is the concentration of the contents Seeds, peels (unroasted) samples is higher than their contents in the Seeds, and peels (roasted) samples. The highest concentration of Caffeine was 5,334 % in unroasted Arabica coffee peels (Udaini) in Ibb (Kafr) region, while the highest value of chlorogenic acid was 68,460% in unroasted Arabica coffee peels (Tufahi) in Ibb (Kafr). The highest concentration of Caffeine was 9,948% in unroasted Arabic coffee seeds (Udaini) in Ibb (Kafr) region, while the highest concentration of chlorogenic acid was 97,280% in unroasted Arabic coffee seeds (Udaini) in Ibb (Kafr) region. The highest concentration of Caffeine was 1,964 % in roasted Arabica coffee peels (Udaini) in Ibb (Kafr) region, while the highest value of chlorogenic acid was 26,260% in roasted Arabica coffee peels (Bura’ai.) in Sana'a (Haraz). The highest concentration of Caffeine was 2,324% in roasted Arabic coffee seeds (Udaini) in Al- Mahweet (Hufash) region, while the highest concentration of chlorogenic acid was 47,09% in roasted Arabic coffee seeds (Dawairi) in Al- Mahweet (Hufash).

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