What is the difference between D-galactose and D-glucose
Jan 11,2024
Although many monosaccharides are found in living organisms, three hexoses are particularly abundant: D-glucose, D-galactose, and D-fructose. Glucose and galactose are both aldohexoses, while fructose is a ketohexose.
D-glucose, generally referred to simply as glucose, is the most abundant sugar found in nature. Most of the carbohydrates we eat are eventually converted to glucose in a series of biochemical reactions that produce energy for our cells.
D-galactose does not occur in nature in the uncombined state. It is released when lactose, a disaccharide found in milk, is hydrolyzed. The galactose needed by the human body to synthesize lactose is obtained by the metabolic conversion of D-glucose to D-galactose.
Epimers are carbohydrates that vary in one position for the placement of the -OH group. The best examples are D-glucose and D-galactose. Both monosaccharides are D-sugars, meaning that the -OH group on carbon-5 of these hexoses is located on the right in the Fischer Projection. The only difference between D-glucose and D-galactose is in carbon-4. For D-glucose, the -OH is on the right in Fischer Projection, and the -OH group is on the left for D-galactose. That single difference makes D-glucose and D-galactose epimers. They are not enantiomers, diastereomers, or isomers; they are only epimers.
- Related articles
- Related Qustion
- D-Galactose: Versatile Sources, Applications, and Considerations for Toxicity Dec 29, 2023
D-Galactose can be obtained from terrestrial plants, and macroalgae and has versatile applications, but its toxicity should be considered in metabolic disorders and excessive intake.
- D-Galactose: applications in aging model Sep 15, 2023
D-galactose can cause oxidative stress, inflammation, and cognitive impairment, contributing to aging and age-related diseases.
- What is the function of D-galactose? Sep 10, 2021
D-galactopyranose is a galactopyranose having D-configuration. It has a role as an Escherichia coli metabolite and a mouse metabolite. It is a D-galactose and a galactopyranose.
Trichloroacetonitrile is used as an intermediate in insecticides, pesticides, and dyes.....
Jan 11,2024Organic reagentsTenapanor hydrochloride, also known as AZD-1722 and RDX5791, is a selective sodium hydrogen exchanger 3 (NHE3) inhibitor developed by Ardelyx.....
Jan 11,2024APID-Galactose
59-23-4You may like
- D-Galactose
- $42.00 / 500mg
- 2024-11-18
- CAS:59-23-4
- Min. Order:
- Purity: ≥95%
- Supply Ability: 10g
- D-Galactose
- $42.00 / 500mg
- 2024-11-18
- CAS:59-23-4
- Min. Order:
- Purity: ≥95%
- Supply Ability: 10g
- D-Galactose
- $0.00 / 1kg
- 2024-11-18
- CAS:59-23-4
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 5000kg