l xylose

L-Xylose (L-(-)-Xylose), a levo-isomer of Xylose, is classified as an aldopentose-type monosaccharide.

DL-Xylose ((±)-Xylos) is a sugar first derived from wood. DL-Xylose is classified as a monosaccharide of the aldopentose type.

L-Ribulose is a ketopentose monosaccharide and an L-isomer of ribulose. In living organisms, L-Ribulose serves as a substrate for studying pentose metabolism and related enzymatic reactions, and is commonly used to investigate carbohydrate metabolic pathways as well as the substrate specificity and reaction mechanisms of relevant enzymes.

Arabinoxylan is a dietary fiber extracted from monocotyledonous crops, consisting of a β-(1→4)-xylose backbone and α-L-arabinose side chains. Arabinoxylan can be used to study gut microbial fermentation and its prebiotic effects.