Description
Palm wine in Cameroon is produced by spontaneous fermentation of palm sap by native yeasts and lactic‑acid bacteria at tropical ambient temperatures.
Technical
The process begins with the hydrolysis of sucrose into glucose and fructose by microbial invertases, followed by alcoholic fermentation of these monosaccharides to ethanol by Saccharomyces cerevisiae. Concurrently, heterofermentative lactic‑acid bacteria convert sugars to lactic acid, lowering pH and stabilising the beverage. The mixed‑culture metabolism also generates minor compounds such as acetaldehyde, acetic acid, and trace methanol, which influence flavour and safety.
Science
Primary Reaction
sucrose → glucose + fructose → ethanol + lactic acid
Sensory Profile
Aroma ()
fruitysweetyeastyacidicwarmfloralearthyfermentedtropical