- A
furanose is a
collective term for
carbohydrates that have a
chemical structure that
includes a five-membered ring
system consisting of four
carbon atoms...
-
bridge between two
carbon atoms.
Rings with five and six
atoms are
called furanose and
pyranose forms, respectively, and
exist in
equilibrium with the straight-chain...
-
hydroxyl and the aldehyde, a
furanose is
formed instead. The
pyranose form is
thermodynamically more
stable than the
furanose form,
which can be seen by...
-
formation due to
attack on the
aldehyde by the C4'
hydroxyl group to
produce a
furanose form or by the C5'
hydroxyl group to
produce a
pyranose form. In each case...
- forms, the ring
usually has five or six atoms.
These forms are
called furanoses and pyranoses, respectively—by
analogy with
furan and pyran, the simplest...
- group, a
methyl hydroxyl group, a
methoxy group or
another pyranose or
furanose group which are
typical single bond
substitutions but not
limited to these...
-
convert it to the
furanose form. Additionally,
these bacteria need to
convert the
pyranose to the
furanose form
since the
furanose form is
utilized in...
- (<1%), or as a
cyclic hemiacetal (
furanose or pyranose).
Aldohexoses such as D-glucose are
capable of
forming two
furanose forms (α and β) and two pyranose...
- ring, such as the open
chain and
cyclic hemiacetal (typically
pyranose or
furanose forms) of many sugars.: 102 (See
Carbohydrate § Ring-straight
chain isomerism...
- as
pyranose forms. The open-chain form is
limited to
about 0.25%, and
furanose forms exist in
negligible amounts. The
terms "glucose" and "D-glucose"...
