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Table 1 Amount of alkaloids in green coffee beans obtained by fluorescence method

From: New fluorescence spectroscopic method for the simultaneous determination of alkaloids in aqueous extract of green coffee beans

Origin of green coffee beans sample Alkaloid in green coffee beans sample Amount of alkaloid in green coffee beans sample (mean ± SD) %w/w
Abosto (Sidama) Caffeine 0.95 ± 0.004
Trigonelline 1.01 ± 0.01
Gedeo zone Caffeine 1.01 ± 0.004
Trigonelline 1.10 ± 0.01
Wendogenet (Sidama) Caffeine 0.98 ± 0.02
Trigonelline 1.03 ± 0.005