Lactose | → | Enzymatic conversion | → | Purification | → | Decoloration | |
→ | Filtration | → | Refined passivation | → | Evaporation concentration | → | Dry |
→ | Packing | → | Final Product |
Item | GOS 570S | GOS 570P | GOS 700P | GOS 800P | GOS 900P | GOS 1000P | ||
Appearance | Colorless or light yellow sticky liquid | white or yellowish powder | ||||||
pH | 2.8-3.8 | 3.0-6.0 | ||||||
Solid Substance | 74-76% | ≥96.50% | ||||||
GOS content | ≥57% | ≥57% | ≥70% | ≥80% | ≥90% | ≥99% | ||
Lactose | ≤23% | ≤43% | ≤30% | ≤20% | ≤10% | ≤1% | ||
Glucose | ≤22% | |||||||
Galactose | ≥57% | |||||||
Ash(Sulphate) | ≤0.3% | |||||||
Arsenic(As) | ≤0.05 mg/kg | |||||||
Lead(Pb) | ≤0.02 mg/kg | |||||||
Mercury(Hg) | ≤0.01 mg/kg | |||||||
Cadmium(Cd) | ≤0.1 mg/kg | |||||||
Total Aerobic Count | ≤50 CFU/g | |||||||
Total Coliform | ≤3.0 MPN/g | |||||||
Mould/Yeast | ≤20 CFU/g | |||||||
Salmonella | Not exist |