Propylene Glycol Alginate
Propylene Glycol Alginate (PGA) is an ester of alginic acid in which originally derived from brown algae as some of the carboxyl groups are esterified with propylene glycol, some neutralized with an appropriate alkali and some remain free. PGA is white or slightly yellowish in color and can be easy dissolved in water. It forms smooth and viscous after dissolved in water that is very stable in the pH ranges betweens 3 – 5 and it is resistant to reaction with polyvalent cations such as Ca2+ because the carboxyl groups have been blocked by esterification with propylene glycol groups. Therefore, Propylene Glycol Alginate is widely used in acid foods and acid mild drinks as thickening agent, emulsifier and stabilizer.
◆ SPECIAL CHARACTERISTICS:
Acid – Resistant
Thickening and Emulsifying agent
Stability in acid condition
Solubility
◆ Main Applications:
Dairy Products
Salad Dressing
Milk Drinks, Yoghurt & Fruit Juices
Lactic Acid Beverages
Beers
Instant-food
◆Specification：
◆ SPECIAL CHARACTERISTICS:
Acid – Resistant
Thickening and Emulsifying agent
Stability in acid condition
Solubility
◆ Main Applications:
Dairy Products
Salad Dressing
Milk Drinks, Yoghurt & Fruit Juices
Lactic Acid Beverages
Beers
Instant-food
◆Specification：
| Specification | Product & Type |
Particle (through a 80 mesh) |
Moisture (%) |
Viscosity (mPa.s) (1% solution) |
Acid- insoluble ash(%) |
Degree of esterifi- cation |
Lead(mg/kg) | Arsenic (mg/kg) |
Heavy Metal(mg/kg) |
Total plate Count(cfu/g) |
Yeas and Mould(cfu/g) |
Appear-ance |
| Propylene Glycol Alginate |
Super low viscosity |
≥95% | ≤15 | <200 | ≤1.0 | ≥80 | ≤5 | ≤2 | ≤20 | ≤2000 | ≤200 | White or Yellowish powder |
| Propylene Glycol Alginate |
Low viscosity | ≥95% | ≤15 | 200-300 | ≤1.0 | ≥80 | ≤5 | ≤2 | ≤20 | ≤2000 | ≤200 | White or Yellowish powder |
| Propylene Glycol Alginate |
Middle viscosity | ≥95% | ≤15 | 300-500 | ≤1.0 | ≥80 | ≤5 | ≤2 | ≤20 | ≤2000 | ≤200 | White or Yellowish powder |
| Propylene Glycol Alginate |
High Viscosity | ≥95% | ≤15 | 500-700 | ≤1.0 | ≥80 | ≤5 | ≤2 | ≤20 | ≤2000 | ≤200 | White or Yellowish powder |
| Propylene Glycol Alginate |
Super High Viscosity |
≥95% | ≤15 | >700 | ≤1.0 | ≥80 | ≤5 | ≤2 | ≤20 | ≤2000 |
