Zhengzhou Natural Chemical Co., Ltd.

Glucono-Delta-Lactone

• Category :

  Catalyst and Auxiliary

• Synonyms :

  D-Aldonolactone;D-Gluconic acid, delta-lactone;D-(+)-Glucono-1,5-lactone;D-Glucono-delta-lactone;delta-Gluconolactone;delta-Gluconolactone, coarse powder;D-threo-Aldono-1,5-lactone;Gluconic acid lactone;Gluconic lactone;Glucono delta-lactone;Glucolactone;Glucono-Delta-Lactone;glucono delta lactone;Glucono-δ-lactone;3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-one (non-preferred name);(3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-one (non-preferred name);(3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-one (non-preferred name);D-(+)-Glucono-1,5-lactone;

• CAS NO :

  90-80-2

• EC NO :

  202-016-5

• Molecular Formula :

  C₆H₁₀O₆

• Molecular Weight :

  178.14

• Main Specifications :

  99-100.5%

• InChI :

  InChI=1/C6H10O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-5,7-10H,1H2/t2-,3-,4+,5-/m0/s1

• Packing :

  Packing：1). Net 25 kg kraft bags2). Net 25 kg carton3). According to customers'requirement

• Product description :

  Introduction.:
  Glucono delta-lactone (GDL) E575 is a naturally-occurring food additive,It is a lactone (cyclic ester) of D-gluconic acid, and produced by the oxidation of gluconic acid by a number of various methods. In addition to coagulation, GDL is used as an acidulant, leavening agent, and sequestrant,sequestrant, an acidifier, or a curing, pickling, or leavening agent.
  Product Identification.:
  Product name:Glucono-Delta-Lactone
  Synonyms: GDL, 1,5-Gluconolactone; D-Glucono-1,5-lactone; D-Aldonolactone;
  D-Glucono-delta-lactone; Gluconic acid lactone; Gluconic lactone
  Molecular Formula: C6H10O6
  Molecular Weight: 18.14
  Molecular structure: →
  CASE NO: 90-80-2
  EINECS: 202-016-5
  Physical & Chemical Properties.:
  GDL is a white odorless crystalline powder.
  Upon addition to water, GDL is partially hydrolysed to gluconic acid, with the balance between the lactone form and the acid form established as a chemical equilibrium. The rate of hydrolysis of GDL is increased by heat and high pH
  Freely soluble in water, sparingly soluble in ethanol.
  It is unstable if not sealed well, will be oxidized into colored ones and absorbing moistures in case in air for long time.
  Application.:
  Potassium sorbate is used to inhibit molds and yeasts in many foods, such as cheese, wine, yogurt, dried meats, apple cider and baked goods.
  Potassium sorbate has been used extensively in drink, vegetables in soy, tobacco, drugs, cosmetics, agriculturals products, forage and other domain.
  GDL may also be useful in controlling termites by weakening their immune system
  Packing.:
  1). Net 25 kg kraft bags
  2). Net 25 kg carton
  2). According to customers'requirement
  Quality standard.: (see table)
  The quality conforms to USP/ E575/ FCC. IV Standard.

  Glucono-Delta-Lactone index
  Items	Index
  GDL Content	99-100.5%
  Identification	Positive
  Loss on drying	≤0.3%
  Reducing substances	≤0.5%
  Residue on ignition	≤0.5%
  Arsenic	≤1 ppm
  Heavy metal	≤20 ppm
  Lead	≤0.5 ppm
  Mercury	≤1 ppm
  Sulfate	≤0.024%
  Chloride	≤0.01%
  Mesh size	100% pass 50 mesh
  Shelf life	2 years

• Uses :

  1.used to inhibit molds and yeasts in many foods2.also be useful in controlling termites

• Molecular Structure :