SODIUM POLYGLUTAMATE/ γ-PGA CAS 28829-38-1

CAS No.: 28829-38-1
Grade: Cosmetic Grade
Appearance: White to off white granular powder

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Comprehensive Guide to SODIUM POLYGLUTAMATE/γ-PGA (CAS 28829-38-1)

Table of Contents

1. Product Overview & Technical Specifications

Parameter Description
CAS Number 28829-38-1
Molecular Formula (C5H7NO3)n·Na
Appearance White crystalline powder/granules
Solubility Highly water-soluble (≥98%)
pH Stability 4.0-9.0 aqueous solution
Certifications Food Grade (GB 29948), Cosmetic Grade (EC 1223/2009)

2. Comparative Analysis with Similar Compounds

Feature γ-PGA Sodium Polyacrylic Acid Sodium
Biodegradability Fully biodegradable Limited degradation
Moisture Retention 500× water absorption 200× water absorption
Thermal Stability Stable up to 150°C Degrades above 100°C
Food Applications Nutrient enhancer Texture modifier

3. Industrial & Commercial Applications

3.1 Food Industry

As multifunctional food additive (0.1-0.5% dosage):

  • Enhances umami taste in meat products/sauces
  • Inhibits lipid oxidation in processed foods
  • Improves freeze-thaw stability in frozen goods

3.2 Cosmetic Formulations

  • Key humectant in serums/masks (0.5-2.0%)
  • Anti-glycation agent in anti-aging creams
  • pH balancer in cleansing products

3.3 Agricultural Solutions

  • Fertilizer synergist (50-200 ppm)
  • Soil pH regulator for alkaline soils
  • Crop stress resistance enhancer

4. Usage Guidelines by Industry

Industry Recommended Dosage Functional Benefit
Bakery 0.3-0.7% flour basis Gluten network reinforcement
Dermatology 1.5-3.0% in emulsions Transdermal delivery enhancement
Hydroponics 100-150 mg/L Nutrient uptake optimization

5. Client Success Stories

Case Study 1: Premium Skincare Brand

Challenge: Develop non-greasy moisturizer with 24h hydration
Solution: 2.8% γ-PGA sodium + hyaluronic acid complex
Result: 63% improvement in skin hydration metrics (TEWL test)

Case Study 2: Organic Fertilizer Producer

Challenge: Reduce phosphorus fixation in calcareous soils
Solution: 0.12% γ-PGA coating on NPK granules
Result: 22% higher P availability over 3 crop cycles

Case Study 3: Plant-Based Meat Manufacturer

Challenge: Mimic meat fibrous texture in vegan products
Solution: 0.45% γ-PGA sodium texturizing system
Result: 89% consumer preference vs competitor products

6. Request Customized Solutions

Optimize your formulations with our technical expertise:

Request free sample kits or schedule lab demonstrations.

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