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How does storage temperature affect Reb A stability?
Optimal storage is 15-25°C with ≤55% RH. Accelerated stability shows ≤0.5% annual degradation at 25°C vs 3-5% at 40°C, with critical water activity threshold at 0.6aw.
What certifications ensure Reb A quality?
Top-tier certifications include NSF/ANSI 140-3 for organic processing, ISO 22000 FSSC, USP GMP for dietary ingredients, and Halal/Kosher certification for religious compliance.
What are the permitted pesticide levels in Reb A leaves?
EC 396/2005 regulations apply: chlorpyrifos ≤0.01ppm, glyphosate ≤0.1ppm, with 487 multi-residue screening (QuEChERS- GC/MS/MS). Our leaves consistently test ≥50% below MRLs.
What quality parameters differentiate food-grade from beverage-grade Reb A?
Beverage-grade requires enhanced solubility (>90% in cold water vs >80% for food-grade) and stricter taste profile control (bitterness score ≤2 on 10-point scale). Both meet FCC VIII standards.
How to control residual solvents in Reb A extraction?
Our triple-stage ethanol evaporation process ensures ≤50ppm residual ethanol (meets ICH Q3C Class 3 limits) with final water content ≤5% by Karl Fischer titration.
What’s the purity standard for pharmaceutical-grade Reb A?
Pharmaceutical-grade Reb A requires ≥98% purity (HPLC), with total steviol glycosides ≥99%, heavy metals ≤0.1ppm, and microbial limits meeting USP/EP standards for oral dosage forms.
How to control residual solvents in Reb A extraction?
Our triple-stage ethanol evaporation process ensures ≤10ppm residual ethanol (meets ICH Q3C Class 3 limits) with final water content ≤5% by Karl Fischer titration.
How to control residual solvents in Reb A extraction?
Our triple-stage ethanol evaporation process ensures ≤10ppm residual ethanol (meets ICH Q3C Class 3 limits) with final water content ≤5% by Karl Fischer titration.
What’s the purity standard for pharmaceutical-grade Reb A?
Pharmaceutical-grade Reb A requires ≥98% purity (HPLC), with total steviol glycosides ≥99%, heavy metals ≤0.1ppm, and microbial limits meeting USP/EP standards for oral dosage forms.