GDL, white crystalline powder, almost odorless,freely soluble in water(60g/ml),has a slightly sweet taste, then sour, sparingly  

Glucono-Delta-Lactone

1Physical and Chemical characteristics,

GDL, white crystalline powder, almost odorless,freely soluble in water(60g/ml),has a slightly sweet taste, then sour, sparingly soluble in ethyl alcohol(1g/100ml),almost insoluble ether. Upon addition to water readily forms an mixture of the lactone gdl and gluconic acid.1% solution ph is 3.5,after 2H,PH is 2.5,about 153 decomposition  

Molecular formula    C6H10O6

Molecular weight     178.14

Structural formula

2Quality standard FCCIVUSP24E575GB76572005

Item	Standard	Item	Standard
Appearance	White crystal powers	Lead          Max	0.001
Assay          Min	99.0	Reducing substances Max	0.5
Arsenic     Max	0.0003	Sulfate         Max	0.03
Heavy metals    Max	0.0002	Chloride           Max	0.02

3Uses

GDL is a kind of excellent multifunctional food additive. It is mainly used as protein

coagulant, acidifier, expander, preservative, seasonings, chelating agent, colour-preserver

,etc. it is widely applied to food, daily chemical industry, pharmaceuticals, cosmetics. Plastic and resinxous modification, electrodeposition and polish, metal-surface cleaning and organic synthesis, etc.

For fish and prawn 0.1g/kg, residue is not more than 0.01 mg/kg;For sausage, fish meat paste, grape juice, bean product, the max dosage is 3.0g/kg;It can work with sodium bicarbonate in the ration of 2:1 to make cracker, bread and cake, the dosage is 0.13% of weight of flour .It is made of starch, is not-toxic and harmless to

Human.

GLUCONO-DELTA-LACTONE