D-(+)-Glucono-1,5-lactone CAS#90-80-2

Natural Food-Derived Ingredient: Naturally present in honey, fruit juices, wine, and fermented products, making it suitable for food-related applications.
Multifunctional Food Additive (E575): Acts as a sequestrant, acidifier, curing agent, pickling agent, and leavening agent, offering broad formulation flexibility.
Mild and Controlled Acidity: Hydrolyzes into gluconic acid in water, providing a smooth, tangy taste with milder sourness than citric acid.
Versatile Beverage and Dairy Applications: Widely used in products such as feta cheese and nutritional beverages, including instant drinks, syrups, RTD tea and coffee, sports and energy drinks, and bottled water.

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Product Details

D-(+)-Glucono-1,5-lactone (CAS#90-80-2)

Delta-Gluconolactone (GDL) is the lactone form of D-gluconate and occurs naturally in a variety of foods, including honey, fruit juices, wine, and many fermented products.

As a food additive identified by E number E575, it functions as a sequestrant and acidifier, helping to lower pH and protect foods from deterioration caused by enzymes and microorganisms. It also serves as a curing, pickling, and leavening agent, and has been promoted for applications such as feta cheese production.

Although neutral in its dry form, GDL hydrolyzes in water to form gluconic acid, contributing a mild tangy flavor. Its acidity is approximately one-third that of citric acid. Additionally, it can be used as a nutritional supplement in beverages, including instant drinks, syrups, ready-to-drink tea and coffee, sports and energy drinks, and bottled water.

D-(+)-Glucono-1,5-lactone CAS#90-80-2

D-(+)-Glucono-1,5-lactone Chemical Properties

Melting point	160 °C (dec.)(lit.)
alpha	65 º (c=1,H2O)
Boiling point	230.35°C (rough estimate)
bulk density	750kg/m3
density	0.6
refractive index	63.5 ° (C=10, H2O)
storage temp.	Sealed in dry,Room Temperature
solubility	590g/l Hydrolysis
pKa	12.06±0.60(Predicted)
form	Crystalline Powder
color	White to off-white
Odor	wh. cryst. powd., pract. odorless
PH	3.6 (10g/l, H2O, 20℃)
biological source	microbial
Water Solubility	500 g/L (20 ºC)
Merck	144457
BRN	83286
Major Application	pharmaceutical (small molecule)
Cosmetics Ingredients Functions	SKIN CONDITIONING
	CHELATING
Cosmetic Ingredient Review (CIR)	D-(+)-Glucono-1,5-lactone (90-80-2)
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
InChIKey	PHOQVHQSTUBQQK-SQOUGZDYSA-N
SMILES	OC[C@H]1OC(=O)[C@H](O)[C@@H](O)[C@@H]1O
LogP	-2.38
CAS DataBase Reference	90-80-2(CAS DataBase Reference)
NIST Chemistry Reference	D-Gluconic acid, «delta»-lactone(90-80-2)
EPA Substance Registry System	.delta.-Gluconolactone (90-80-2)

Safety Information

Hazard Codes	Xn,Xi
Risk Statements	21-36/38-46-62-63
Safety Statements	24/25-53-36/37-26-25
WGK Germany	3
RTECS	LZ5184000
F	21
TSCA	TSCA listed
HS Code	29322090
Storage Class	11 - Combustible Solids
Hazardous Substances Data	90-80-2(Hazardous Substances Data)

D-(+)-Glucono-1,5-lactone CAS#90-80-2

Product Application of D-(+)-Glucono-1,5-lactone (CAS#90-80-2)

D-(+)-Glucono-1,5-lactone (GDL) functions primarily as an acidulant. In aqueous solution, it gradually hydrolyzes to produce gluconic acid, thereby establishing the desired pH level. The speed of acid generation depends on factors such as temperature, concentration, and the initial pH of the solution. Acid release occurs slowly at room temperature and accelerates at elevated temperatures.

GDL is highly soluble, with a solubility of 59 g per 100 ml of water at 20°C. It serves multiple roles, including leavening agent, acidulant, curing and pickling agent, and pH regulator. Compared with many other food acids, it provides a milder tartness. It is widely applied in baked products, seafood items, desserts, and salad dressings.

D-(+)-Glucono-1,5-lactone CAS#90-80-2