Glucono-Delta-Lactone
CAS No. 90-80-2
Chemical Formula: C₆H₁₀O₆
EU-No.:E575

GENERAL INFORMATION
Glucono-1,5-Lactone or GdL is a neutral cyclic ester of gluconic acid, produced with the acid by fermentation of glucose. It is separated from the acid by crystallisation.
GdL is a fine, white crystalline powder, freely soluble in water. It is practically odourless and has a slightly sweet taste. Non toxic, it is completely metabolised in the body like a carbohydrate.
When added into an aqueous solution, GdL rapidly dissolves, and subsequently slowly hydrolyses to gluconic acid, thus producing a gentle acidification in the same way as lactic acid-producing bacteria. In solution both gluconic acid and GdL are always in balance. The equivalent point and the rate of transformation are related to concentration, temperature and pH-value.

SPECIFICATION
D-gluconic acid delta-lactone (E 575)
Molecular formula : C6H10O6
Molecular weight :178.14
Form :white crystals
Colour :APHA (30% solution) :100Max
Assay: 99,0 -101,0%
Moisture: 0.5%Max
Reducing substances (as D-glucose): 0.5%Max
Heavy metals (as Pb ):20PPM Max
Chloride :350PPM Max
Sulphate :240PPM MaX
Lead :2PPM Max
Arsenic:3PPM max
Residue on ignition :0.2%Max
Solubility in water: free soluble
Solubility in ethanol :sparingly soluble
Complies with :FCC , JSFA, EUSFA

PACKAGING
GdL is supplied in polylined paperbags of 25 kg or 50 lbs net.

MAIN FUNCTIONS/PROPERTIES
controlled release acidulant
mild acidulant
curing accelerator
chemical leavening agent
chelating agent
preservative agent enhancer

APPLICATION
Glucono-delta-Lactone in dairy products
Glucono-delta-Lactone in meat products
Glucono-delta-Lactone in the preservation of meat products
Glucono-delta-Lactone in bakery products
Glucono-delta-Lactone in seafood products