maltose

Also known as 4-(alpha-D-glucopyranosido)-alpha-glucopyranose, Cextromaltose, maltobiose, D-maltose, 4-O-alpha-D-glucopyranosyl-D-glucose, alpha-D-Glcp-(1->4)-D-Glcp, 4-O-alpha-D-glucopyranosyl-D-glucopyranose, D-(+)-maltose

thumb|right|260px|Amylase reaction consisting of hydrolyzing amylose, producing maltose

AI overview

Maltose is a sugar produced when the enzyme amylase breaks down starch molecules like amylose. It's an important intermediate product in the digestion and processing of starches in foods and in the body.

AI-generated from the Wikipedia summary — may contain errors.

Chemical data

Formula: C12H22O11
Molecular weight: 342.3 g/mol
IUPAC name: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol
SMILES: C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](OC([C@@H]([C@H]2O)O)O)CO)O)O)O)O
InChIKey: GUBGYTABKSRVRQ-PICCSMPSSA-N
XLogP: -4.7
Polar surface area: 190 Å²
H-bond donors: 8
H-bond acceptors: 11
Formal charge: 0

via PubChem

Research

14,683 papers

Lactose, Maltose, and Sucrose in Health and Disease.ReviewMolecular nutrition & food research · 2020Qi X, Tester RFDOI: 10.1002/mnfr.201901082
Maltose accumulation-induced cell death in Saccharomyces cerevisiae.FEMS yeast research · 2024Zhang X, Nijland JG, Driessen AJMDOI: 10.1093/femsyr/foae012
Maltose-induced hyponatremia.Annals of internal medicine · 1993Palevsky PM, Rendulic D, Diven WFDOI: 10.7326/0003-4819-118-7-199304010-00007
The importance of maltose in transitory starch breakdown.ReviewPlant, cell & environment · 2006Lu Y, Sharkey TDDOI: 10.1111/j.1365-3040.2005.01480.x
Anaphylaxis caused by maltose solution.Allergology international : official journal of the Japanese Society of Allergology · 2020Takayama E, Seto HDOI: 10.1016/j.alit.2019.12.008
The NMR signature of maltose-based glycation in full-length proteins.Journal of biomolecular NMR · 2024Defant P, Regl C, Huber CG et al.DOI: 10.1007/s10858-023-00432-5
Case of anaphylaxis to maltose solution.The Journal of dermatology · 2020Moriwaki M, Umeda N, Ishii K et al.DOI: 10.1111/1346-8138.15263
Maltose and lactose transport in Escherichia coli. Examples of two different types of concentrative transport systems.ReviewBiochimica et biophysica acta · 1983Hengge R, Boos WDOI: 10.1016/0304-4157(83)90009-6

via PubMed

Wikidata facts

Mass: 342.11621155

Show 4 more facts

chemical formula: C₁₂H₂₂O₁₁
canonical SMILES: C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)O)CO)O)O)O)O
isomeric SMILES: C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](OC([C@@H]([C@H]2O)O)O)CO)O)O)O)O
Commons category: Maltose

Sources (5)

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~5 min read

Article

6 sections

Contents

History
Structure and nomenclature
Properties
Sources and absorption
References
External links

{{chembox | Verifiedfields = changed | Watchedfields = removed | verifiedrevid = 47716923 | ImageFile = Maltose2.svg | ImageSize = | ImageName = α-Maltose | ImageCaption = α-Maltose | ImageClass = skin-invert-image | ImageFile1 = Maltose structure.svg | ImageSize1 = | ImageName1 = β-Maltose | ImageCaption1 = β-Maltose | ImageClass1 = skin-invert-image | IUPACName = α--Glucopyranosyl-(1→4)-β--glucopyranose 4-O-α-D-Glucopyranosyl-D-glucopyranose | OtherNames = | SystematicName = (3R,4R,5S,6R)-6-(hydroxymethyl)-5-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}oxane-2,3,4-triol | Section1 = | Section2 = | Section7 = | Section8 = }} thumb|right|260px|Amylase reaction consisting of hydrolyzing amylose, producing maltose

Maltose ( or ), also known as maltobiose or malt sugar, is a disaccharide formed from two units of glucose joined with an α(1→4) bond. In the isomer isomaltose, the two glucose molecules are joined with an α(1→6) bond. Maltose is the two-unit member of the amylose homologous series, the key structural motif of starch. When beta-amylase breaks down starch, it removes two glucose units at a time, producing maltose. An example of this reaction is found in germinating seeds, which is why it was named after malt. Unlike sucrose, it is a reducing sugar.