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Rhamnus prinoides (gesho) which is belongs to the family Rhamnaceae and order Rhamnales is a dicotyledonous angiosperm plant. In Ethiopia, the plant is utilized as a bittering agent in local alcoholic beverages. Due to its bittering substance compositions it could have the potential to be used as a raw material for alcoholic beverages. However, knowledge of its potential as a hop substitute during alcoholic beverage production is limited. The major goal of this research was to investigate the potential of R. prinoides as a raw material substitute for hops in the production of alcoholic beverages. Bittering substance of R. prinoides and physic-chemical of finished beer were done. Four beer types were identified and designated as A, B, C and D (control). The analysis of key brewing variables of the R. prinoides was as follows: total resin (15.96-16.02%), ISO-alpha acid (1.17-1.45 mg/l), alpha acid (1.44-1.92 mg/l), essential oil (3-.0-3.07 %), were obtained. Beer type C (7.4+0.01%w/w and 9.5+0.01%v/v) has been shown significantly (p |
