Lactulose is made from lactose, which is a light brown, clear, sticky liquid with a cool and sweet taste. The sweetness is 48% ~ 62% of sucrose. Lactulose can be liquid or powder. There are food grade and medical grade.
|Product name||Lactulose syrup|
|Appearance||White or yellow sticky liquid|
|Assay (on dry basis) (%)||≥ 70|
|Solid substance (%)||≥60|
|Moisture (%)||≤ 35|
|Residue on ignition(%)||≤0.5|
|pH (10% water solution)||3.0~7.0|
|Total plate count (cfu/g)||≤3000|
|Coliforms (cfu/g)||≤30 MPN/g|
Isomerized lactose is not absorbed by the human body, but it can promote the proliferation of intestinal bifidobacteria, which is beneficial to health. China's regulations can be used for milk powder, the maximum usage of 15g/kg; In the biscuit maximum usage 2.0g/kg; The maximum usage in beverages (liquid, solid) and fresh milk is 1.5g/kg(all above are based on isomerized lactose dry matter).
Indirect nutritional supplements. According to GB 2760-86, it can be added to fresh milk and beverage. This product is the human intestinal probiotics bifidobacterium multiplication factor, with help to digest and absorb protein, lactose, B vitamins and other functions.
It has the effect of reducing blood ammonia and reducing diarrhea, mainly used for the treatment of ammonia liver coma, hyperemia and habitual constipation and other diseases 4. Isomerized lactose is not absorbed by human body, but it can promote the proliferation of intestinal bifidobacterium, which is beneficial to health. China's regulations (all with isomerized lactose dry matter meter) can be used in milk powder, the maximum amount of 15g/kg; In the biscuit maximum usage 2.0 g/kg; The maximum dosage in beverages (liquid, solid) and fresh milk is 1.5g/kg.
The synthetic methods
1. With lactose as raw material, with sodium hydroxide as isomerizing agent by reaction.
2. It is obtained by isomerization of lactose in the presence of alkali. The main components are more than 50% isomerized lactose, 30% water, and the rest are unreacted lactose and its decomposition products fructose, galactose and glucose.
3. It is obtained by isomerization of lactose in the presence of alkali