What Is the Viscosity Standard of Food Grade Xanthan Gum?
2026-04-13 10:11:38
Viscosity Standard of Food Grade Xanthan Gum
The viscosity standard for food-grade xanthan gum is universally measured under fixed conditions:
1%xanthan gum dissolved in 1%KCl solution,at 24–25°C(75°F),using a Brookfield LV viscometer with spindle#3 at 60 rpm.
Key Global Standards
1.FDA(U.S.)&GB 1886.41(China,National Food Safety Standard)
Minimum viscosity:≥600 cP(mPa·s)
Viscosity ratio(V₁/V₂,cold/hot):1.02–1.45(thermal stability)
2.Commercial Food-Grade Grades(Typical Industry Specs)
Most food-grade xanthan gum sold for baking,sauces,and gluten-free applications is high viscosity:
Standard food grade:1200–1700 cP
High viscosity grade:1500–2200 cP(for stronger thickening)
Critical Test Conditions(Must Match)
Concentration:1.0%xanthan gum+1.0%KCl(salt stabilizes viscosity)
Temperature:24–25°C(75°F)
Instrument:Brookfield LV(LVDV)viscometer
Spindle:#3
Speed:60 rpm
Mixing:Stirred 2 hours at 800 rpm before measurement
Why Viscosity Matters for Gluten-Free Use
600–800 cP:Light thickening(beverages,thin sauces)
1200–1600 cP:Ideal for gluten-free baking(bread,cakes,doughs)
>1800 cP:Heavy thickening(fillings,pastes)
Summary
Legal minimum:600 cP
Practical food grade(gluten-free):1200–1600 cP
Always check the COA(Certificate of Analysis)for exact viscosity.
References
GB/T 7714
Garcia-Ochoa F,Santos V E,Casas J A,et al.Xanthan gum:properties,production processes,and applications[J].Biotechnology Advances,2000,18(6):549–579.
MLA
Garcia-Ochoa,F.,et al."Xanthan Gum:Properties,Production Processes,and Applications."Biotechnology Advances,vol.18,no.6,2000,pp.549–579.
APA
Garcia-Ochoa,F.,Santos,V.E.,Casas,J.A.,&Gomez,E.(2000).Xanthan gum:properties,production processes,and applications.Biotechnology Advances,18(6),549–579.
