Table 1 Morphological, biochemical characteristics, and carbohydrate fermentation by yeast isolates
Characteristics | Yeast isolates | |||
|---|---|---|---|---|
Y31 | Y33 | Y38 | Y44 | |
Color | White | White | Cream | White |
Surface | Smooth | Rough | Smooth | Smooth |
Margin | Entire | Elevated | Elevated | Elevated |
Elevation | Convex | Convex | Convex | Convex |
Catalase | − | − | − | + |
Urease test | − | − | − | − |
Carbohydrate fermentation | ||||
 D-glucose | + | + | + | + |
 Glycerol | − | + | + | − |
 Calcium 2-keto-gluconate | − | − | − | − |
 L-arabinose | − | − | − | − |
 D-xylose | − | − | − | − |
 Adonitol | − | − | − | − |
 Xylitol | − | − | − | − |
 D-galactose | + | − | + | + |
 Inositol | − | − | − | − |
 D-sorbitol | + | − | − | − |
 Methyl-αD-glucopyranoside | + | − | + | + |
 N-acetyl-glucosamine | − | + | − | − |
 D-cellobiose | − | − | − | − |
 D-lactose | − | − | − | − |
 D-maltose | − | − | − | + |
 D-saccharose | + | − | + | + |
 D-trehalose | − | − | − | − |
 D-melezitose | − | − | − | − |
 D-raffinose | + | − | − | + |