3. Results and discussion
3.1. Wax content
According to Folstar (1985)apud Folstar et al. (1976), C. arabica contains between 0.2% and 0.3% coffee wax, which is located in a thin layer forming the outermost part of the bean.
According to Wurziger (1972), coffee wax is responsible for the unpleasant feeling after drinking. For that reason, removal of the wax layer by processing considerably improves drinking quality. Coffee cultivars or plants with less wax covering their beans produce a more easily digested beverage with enhanced flavor and quality characteristics.
The highest wax content was found in C. congensis (2.5%) and C. eugenioides (2.3%), while C. canephora (0.1%) and C. arabica (0.2%) had the lowest. These comparatively lower wax content values are probably one of the reasons for their popularity and worldwide consumer preference.
Significant intra- and interspecies variability in wax content was found, as illustrated by C. liberica var. dewevrei ‘Abeokutae’ (0.7–2.5%) and C. stenophylla (1.0–2.2%), the latter exhibiting the greatest degree of variability among the plants investigated ( Table 2).
3. Results and discussion3.1. Wax contentAccording to Folstar (1985)apud Folstar et al. (1976), C. arabica contains between 0.2% and 0.3% coffee wax, which is located in a thin layer forming the outermost part of the bean.According to Wurziger (1972), coffee wax is responsible for the unpleasant feeling after drinking. For that reason, removal of the wax layer by processing considerably improves drinking quality. Coffee cultivars or plants with less wax covering their beans produce a more easily digested beverage with enhanced flavor and quality characteristics.The highest wax content was found in C. congensis (2.5%) and C. eugenioides (2.3%), while C. canephora (0.1%) and C. arabica (0.2%) had the lowest. These comparatively lower wax content values are probably one of the reasons for their popularity and worldwide consumer preference.Significant intra- and interspecies variability in wax content was found, as illustrated by C. liberica var. dewevrei ‘Abeokutae’ (0.7–2.5%) and C. stenophylla (1.0–2.2%), the latter exhibiting the greatest degree of variability among the plants investigated ( Table 2).
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