α-d-lactose hydrate

α-Lactose (hydrate) (α-D-Lactose (hydrate)), the main carbohydrate in mammalian milk, comprises two sugar units: glucose and galactose, and occurs as two anomers, α and β. It serves multiple roles in the food and pharmaceutical sectors, including as a free-flowing or agglomerating agent, and a diluent for pigments, flavors, or enzymes [1] [2] [3].

D-(+)-Melezitose hydrate (melicitose) is a nonreducing trisaccharide sugar that is produced by many plant sap-eating insects, including aphids such as Cinara pilicornis by an enzyme reaction.

α-D-Glucose-1,6-bisphosphate is abis-phosphorylated derivative of α-D-glucose that has roles in carbohydrate metabolism.1It is the product of the reaction of glucose-1- or 6-phosphate with glucose-1,6-bisphosphate synthase (PGM2LI) in the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate.2It is also a cofactor for the bacterial enzyme phosphopentomutase.3,4α-D-Glucose-1,6-bisphosphate has been used in the study of carbohydrate metabolism. 1.Beitner, R.Regulation of carbohydrate metabolism by glucose 1,6-bisphosphate in extrahepatic tissues; comparison with fructose 2,6-bisphosphateInt. J. Biochem.22(6)553-557(1990) 2.Maliekal, P., Sokolova, T., Vertommen, D., et al.Molecular identification of mammalian phosphopentomutase and glucose-1,6-bisphosphate synthase, two members of the α-D-phosphohexomutase familyJ. Biol. Chem.282(44)31844-31851(2007) 3.Moustafa, H.M.A., Zaghloul, T.I., and Zhang, Y.-H.P.A simple assay for determining activities of phosphopentomutase from a hyperthermophilic bacterium Thermotoga maritimaAnal. Biochem.50175-81(2016) 4.Panosian, T.D., Nannemann, D.P., Watkins, G.R., et al.Bacillus cereus phosphopentomutase is an alkaline phosphatase family member that exhibits an altered entry point into the catalytic cycleJ. Biol. Chem.286(10)8043-8054(2011)

D-Fructose-6-phosphate (sodium salt hydrate) is a sugar intermediate in the glycolytic pathway produced by the isomerization of glucose 6-phosphate by glucose phosphate isomerase, and is used in cancer research.

α-D-Glucose-1-phosphate disodium hydrate serves multiple roles in medical and biochemical applications, including as a precursor in the synthesis of glucuronic acid, a cytostatic compound crucial for cardiopathic therapy, an antibiotic, an immunosuppressive agent, and a component in circulatory system therapy [1].

D-(+)-Galacturonic acid is one of the endogenous metabolites.