Solubility-good solubility, the solution is colorless and transparent.
Fructo oligosaccharides with a purity of 55%-60% are about 60% sweeter than sucrose, and those with a purity of 96% are about 30% sweeter than sucrose. It has the pure sweetness of sucrose and is better than sucrose. The sweetness is refreshing, pure, without any aftertaste.
Stability-The thermal stability is higher than that of sucrose. Under neutral conditions, it is very stable at 120°C; under acidic (pH 3) conditions, the stability will not be significantly reduced until the temperature reaches 70°C. It is very stable in the general food pH range (4.0-7.0) and can be stored at refrigerated temperature for more than one year.
Fructooligosaccharides are stable at 150°C and begin to decompose at 160°C. Does not produce Maillard discoloration reaction. Fructooligosaccharides have quite good thermal stability in neutral or near neutral environments. In an environment with pH>5, heating to 120°C is also relatively stable. However, when the temperature exceeds 90°C when heated in an acidic environment with pH<4, the oligofructose will be decomposed.
Therefore, when producing acidic bifidus factor foods, such as when adding fructooligosaccharides to yogurt, it should be added after the original high-temperature process, and only pasteurized after addition can be stored.
In the range of -0-70℃, the viscosity of fructooligosaccharides is similar to corn high-fructose syrup, slightly larger than that of sucrose solution of the same concentration, and decreases with the increase of temperature.
Water activity-water activity is similar to that of sucrose, but the oligofructose is slightly higher. The water activity of oligofructose G (G: 33%, GF: 12%, FOS: 55%) is equivalent to that of sucrose, and the oligofructose P component (G: 2%, GF: 3%, FOS: 95%) slightly higher. 
Nutrition-not hydrolyzed by human digestive enzymes, non-digestible and insulin-independent. Ingestion of fructooligosaccharides can effectively reduce blood sugar levels during fasting, so it is very suitable for diabetics and obese people.
Cannot be hydrolyzed by human digestive enzymes, non-digestible and insulin-independent. Ingestion of fructooligosaccharides can effectively reduce blood sugar levels during fasting, so it is very suitable for diabetics and obese people.
can not be fermented by oral microorganisms such as Streptococcus mutans in the oral cavity, and can be used as a functional sweetener for preventing dental caries.
selectively promote the colonization of beneficial bacteria such as Lactobacillus, Bifidobacterium and Streptococcus in the digestive tract, inhibit the growth of harmful bacteria, improve the intestinal flora, and indirectly achieve nutrition and growth-promoting effects on the animal body . Promote the formation of B vitamins and folic acid, maintain the normal function of the nervous system, promote digestion and metabolism; cleanse the intestines and detoxify, moisturize bowel movements, prevent and treat constipation and hemorrhoids; prevent rectal and colon cancer; reduce liver toxins, and enhance human immunity .