Soy oligosaccharides are those found mainly in soybeans, but can also be found in other beans and peas. There are two principal soy oligosaccharides: the trisaccharide raffinose and the tetrasaccharide stachyose. Raffinose is comprised of one molecule each of galactose, glucose and fructose. Stachyose is comprised of two molecules of galactose, one molecule of glucose and one molecule of fructose. Soy oligosaccharides act to stimulate the growth of Bifidobacterium species in the large intestine. They are marketed in Japan as dietary supplements and in functional foods and are being developed in the US for similar uses.
Mainly composed of stachyose and raffinose, soy oligosaccharide is a kind of functional oligosaccharide. Soy oligosaccharide was recommended as a natural and safe food by the Food and Drug Administration of USA. The Ministry of Wealth, Labor and Welfare of Japan once recommended the Japanese citizens each to take 10ml of soy oligosaccharide everyday to raise their immunity and improve their health conditions.
Soy oligosaccharide can be drunk directly. In addition, its high physicochemical stability makes it widely used in health-care foods, soft drinks, candies, pastries, cooked wheaten products, dairy products, milk powder for infants and so on. It is extensively used in pharmaceutical products as well.
| Items | index |
| Form | Colorless or light yellow, liquid |
| Taste | Sweet, no peculiar smells |
| Impurities | No impurities visible to the naked eyes |
| Total sweetness (Bx) | ≥73.0 |
| Ash (%) | ≥25 |
| Oligosaccharide (stachyose, raffinose) (%) | ≥60.0 |
| Stachyose, raffinose (dry basis) (%) | ≥25.0 |
| pH (1% aqueous solution) | 6.5±1.0 |
| Total plate count (cfu/g) | ≤1000 |
| E. coli count | ≤30 |
| Mycete & saccharomycete (cfu/g) | ≤100 |
| Pathogens (referring to intestinal pathogenic bacteria and pathogenic bacteria) | Not be detected |
| Arsenic(mg/kg) | ≤0.5 |
| Lead (mg/kg) | ≤1.0 |
Packed in PET bottles Specifications300ml / bottle × 24 bottles / box, 130ml / bottle × 48 bottles / box, 300ml / bottle × 2 bottle gift box packaging or packaging in accordance with customer requirements.