G4750

D-(+)-Gluconic acid δ-lactone

≥99.0% (GC)

• Synonym(s): Glucono delta-lactone, δ-Gluconolactone, 1,2,3,4,5-Pentahydroxycaproic acid δ-lactone, D-(+)-Dextronic acid δ-lactone
• Empirical Formula (Hill Notation): C₆H₁₀O₆
• CAS Number: 90-80-2
• Molecular Weight: 178.14
• Beilstein/REAXYS Number: 83286
• EC Number: 202-016-5
• MDL number: MFCD00006647
• UNSPSC Code: 12352201
• PubChem Substance ID: 24895183
• NACRES: NA.25

Properties

• biological source: microbial
• assay: ≥99.0% (GC)
• form: powder
• technique(s): gas chromatography (GC): suitable
• color: white to off-white
• mp: 160 °C (dec.) (lit.)
• solubility: water: soluble
• storage temp.: room temp
• SMILES string: OC[C@H]1OC(=O)[C@H](O)[C@@H](O)[C@@H]1O
• InChI: 1S/C6H10O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-5,7-10H,1H2/t2-,3-,4+,5-/m1/s1
• InChI key: PHOQVHQSTUBQQK-SQOUGZDYSA-N

Description

General description

D-(+)-Gluconic acid δ-lactone (GDL) is soluble in water and hydrolyzes into gluconic acid spontaneously and homogeneously lowers the pH. Quinoprotein glucose dehydrogenase converts D-glucose to GDL which gradually lowers the pH and transcriptionally controls the prodigiosin production. GDL is commonly used in the food industry to cause gelation of sodium caseinate by acidification. GDL helps to overcome the difficulties and variations of using starter bacterial cultures.

Application

D-(+)-Gluconic acid δ-lactone has been used in the preparation of cold set gels, and hydrogels.

Biochem/physiol Actions

Glucono-d-lactone increased the doubling time and activated enzymes involved in the oxidative pentose phosphate pathway of Saccharomyces cerevisiae.

Other Notes

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Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)