Country: 
China (Mainland)
Business Type:Trading Company
Tel: 13156235996
Tel: 13156235996
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URL: http://www.eastchem-cn.com
Province/state: Shangdong
City: Qingdao
Street: No.1581-12,Jinshui Road, Licang, Qingdao,China
Contact SuppliersCAS NO.90-80-2
Description: Gluconate-δ-lactone, abbreviated as lactone or GDL, molecular formula C6H10O6, is a non-toxic and edible substance. White crystalline or white crystalline powder, almost odorless, with a sweet taste before sour. Soluble in water.
Glucono delta-lactone (GDL), also known as gluconolactone, is a food additive with the E number E575 used as asequestrant, an acidifier, or a curing, pickling, or leavening agent. It is a lactone of D-gluconic acid. Pure GDL is a white odorless crystalline powder.
GDL has been marketed for use in feta cheese. GDL is neutral, but hydrolyses in water to gluconic acid which is acidic, adding a tangy taste to foods, though it has roughly a third of the sourness of citric acid. It is metabolized to 6-phospho-D-gluconate; one gram of GDL yields roughly the same amount of metabolic energy as one gram of sugar.
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.
The yeast Saccharomyces bulderi can be used to ferment gluconolactone to ethanol and carbon dioxide. The pH value greatly affects culture growth. Gluconolactone at 1 or 2% in a mineral media solution causes the pH to drop below 3.
It is also a complete inhibitor of the enzyme amygdalin beta-glucosidase at concentrations of 1 mM.
Our Service:
1. High quality with the competitive price.
2. Professional and experienced business services.
3. Prompt delivery within 2-3 weeks (1 weeks is available for ready stock)
4. Quick response to client inquiries
5. Free samples and shipping documents in accordance with the regulations of different countries
6. Adequate product inventory
6. Variety of payments, such as L/C, TT, , MoneyGram or other payments.
Specification:
| ITEM | STANDARD |
| IDENTIFICATION | POSITIVE |
| GDL | 99-100.5% |
| CHARACTERISTICS | WHITE CRYSTALLINE POWDER, ALMOST ODORLESS |
| SOLUBILITY | EASILY SOLUBLE IN WATER, HARD SOLUBLE IN ETHANOL |
| MELTING POINT | 152℃±2 |
| MOISTURE | ≤0.5% |
| REDUCING SUBSTANCES (AS D-GLUCOSE) | ≤0.5% |
| AS | ≤1PPM |
| HEAVY METAL | ≤10PPM |
| LEAD | ≤2PPM |
| MERCURY | ≤0.1PPM |
| CADMIUM | ≤2PPM |
| CALCIUM | ≤0.05% |
| CHLORIDE | ≤0.05% |
| SULPHATES | ≤0.02% |
| LOSS ON DRYING | ≤1% |
| PH | 1.5~1.8 |
| AEROBE | 50/G MAX |
| YEAST | 10/G MAX |
| MOLD | 10/G MAX |
| E.COLI | NOT AVAILABLE AT 30G |
| SALMONELLA | NOT AVAILABLE AT 25G |
•Company Introduction: Founded in 2008, East Chemsources Limited is a professional manufacturer of supplier in food and beverage, pharmaceuticals, cosmetics and other industries. Through more than four years development, our company has developed from single product at first to providing solution to finished products now, is committed to providing solutions for success and growth through long term relationships.
Currently, our products have been exported to more than 50 countries all over the world. Our service is accomplished by providing good quality solution that matches the specifications of our clients at competitive price. Our products will derive from trusted sources and arrive to our clients in time and well arranged manner, be creating the greatest benefits for our customers.
Whether your project is large or small, whether it needs one, several or all of our disciplines you will find our level of dedication to a quality result to be the same. We are looking forward to your sincere cooperation and participation.