Propylene Glycol Alginate (PGA) CAS 9005-37-2 | Food Grade Supplier China
Product Name: Propylene Glycol Alginate (PGA)
CAS Number: 9005-37-2
Other Names: Propylene Glycol Alginate, PGA
Product Description
Propylene glycol alginate (PGA) is a derivative derived from the natural polysaccharide alginic acid (alginic acid) esterified with propylene glycol. As a naturally derived food additive and industrial colloid, PGA combines excellent emulsifying, thickening, stability, and acid resistance, making it widely used in a variety of industries, including food, beverages, cosmetics, pharmaceuticals, textiles, and papermaking.
Compared to conventional alginates, PGA exhibits superior stability at low pH and high salt levels, making it particularly suitable for acidic beverages, dairy products, and salad dressings.
Physical & Chemical Properties
| Property | Specification |
|---|---|
| Product Name | Propylene Glycol Alginate (PGA) |
| CAS Number | 9005-37-2 |
| Appearance | White to light yellow powder |
| Odor | Odorless |
| Solubility | Soluble in water |
| pH (1% solution) | 3.0–4.5 |
| Viscosity (1% solution, 20°C) | 100–1000 mPa·s |
| Ash Content | ≤3.0% |
| Loss on Drying | ≤10% |
| Degree of Esterification | 80%–95% |
| Shelf Life | 24 months |
| Packing | 25kg paper bag / fiber drum or customized |
Applications
Food Industry: Widely used as an emulsifier, thickener, and stabilizer in beverages, dairy products, jellies, salad dressings, juices, and condiments.
Beverage Industry: Improves the suspension and stability of acidic beverages.
Baked Goods: Used in batters and fillings to enhance texture and moisturizing properties.
Pharmaceutical Industry: Used as a stabilizer in pharmaceutical suspensions, emulsions, and capsules.
Cosmetics: Used as an emulsifier and thickener in creams, shampoos, and skin lotions.
Industrial Applications: Used as a dispersant, binder, and stabilizer in textiles, papermaking, and ceramics.
Product Advantages
✅ Naturally sourced, safe and environmentally friendly
✅ Strong acid resistance, suitable for acidic systems
✅ Excellent emulsification and suspension properties
✅ Customizable viscosity and degree of esterification
✅ Meets food, industrial, and pharmaceutical grade standards
Company Advantages
🌐 15+ years of experience in alginate export, with customers in over 50 countries
🏆 ISO, HALAL, KOSHER, and SGS certified
🚢 Various packaging options, OEM support available
📦 Complete documentation including COA, TDS, and MSDS provided
⏱ Fast delivery, ample stock
Packaging and Storage
Packaging: 25kg paper bag/cardboard drum, custom packaging available
Storage: Store in a cool, dry, well-ventilated place, away from moisture, heat, and contamination
Shelf Life: 24 months
❓ FAQ（Frequently Asked Questions）
Q1: Is propylene glycol alginate safe for food use?
A1: Yes, PGA is approved as a safe food additive (E405) by FAO/WHO and widely used in food & beverage formulations.
Q2: What are the main advantages of PGA compared to sodium alginate?
A2: PGA is more stable in acidic and high-salt environments, making it suitable for fruit juices and acidic beverages.
Q3: Can PGA be used in dairy products?
A3: Yes, it enhances creaminess, prevents protein precipitation, and improves emulsion stability.
Q4: What viscosity ranges do you provide?
A4: From 100 mPa·s to 1000 mPa·s, customized to your application needs.
Q5: Do you provide bulk packaging?
A5: Yes, we offer standard 25kg bags as well as jumbo bags (500–1000kg) upon request.
📞Contact us for samples or a quote
🚢 Samples available | OEM services | Free technical support | Worldwide shipping
