what is Hansenula

Hansenula of various shapes, round, oval, oval, sausage-shaped range. Multilateral budding. Some species
can form pseudohyphae.
Vegetative cells of the same shape and ascus. Ascospores 1, 4, cap shape, Saturn-shaped, round, semi-
circular, smooth surface.
Hansenula abnormal variant is a common species of the genus. Cells, round, diameter
4 ~ 7μm. There are sausage-shaped, for the 2.5 ~ 6 × 4.5 ~ 20μm. There are also long sausage-shaped
30μm were. Multilateral budding, can direct the formation of ascospores by the cells, each capsule has
1, 4 sub-spore ascus, but most of the two. Hat-shaped ascospores, often after being released by the
sub-capsule does not spread. The variant grown in wort flat colonies on agar slant, milky white, matt,
edge filamentous. Cultured in the wort after the wave surface with white fungus Pu, becomes turbid
medium, the bottom cell deposition. Can not ferment lactose and melibiose. For maltose and galactose, or
weak or non-fermented sour. Able to assimilate nitrate, are also strong oxidizing ability of
hydrocarbons, kerosene can be used as carbon source.
This is the yeast can produce more ethyl acetate, thereby increasing product flavor, can be used for
wine and food industry. However, they can use alcohol as carbon source, but also in the beverage dry
wrinkled surface bacteria Pu, so is alcohol production of harmful bacteria.
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