| Lactose | → | Enzymatic conversion | → | Purification | → | Decoloration | |
| → | Filtration | → | Refined passivation | → | Evaporation concentration | → | Dry |
| → | Packing | → | Final Product |
| Item | Specification |
| Appearance | Off white powder |
| Taste&Order | Slightly sweet taste,no off flavor |
| PH(10%w/w | 3.0-6.0 |
| Mosture | ≤ 5 % |
| Total GOS(on d.m) | ≥ 90 % |
| Lactose(on d.m) | ≤1 0 % |
| Glucose(on d.m) | ≤ 3 % |
| Galactose(on d.m) | ≥0.4% |
| Sulphated ash | ≤0.3% |
| T.B.C cfu/g | ≤1000 |
| Coliform MPN/g | ≤3.0 |
| Yeast&Mold cfu/g | ≤20 |
| Pathogenics | Neg. |