1. Doctors refer to this as secondary lactase deficiency.

2. The positive rate of lactase deficiency test was highest on the second hour when 25g or 12.5g lactose was given, and the difference was significant.

3. So, lactase could be applied in the preparation of low - lactose milk and galactooligosaccharides.

4. Lactase breaks down the milk-sugar lactose into the more easily digestible sugars galactose and glucose.

5. A similar, less severe, metabolic disorder is congenital lactase deficiency.

6. The invention discloses a lactase powder and the preparation method.

7. Characteristic and biological function of lactose, lactase deficiency and solving approach is expounded in this paper.

8. But the diarrhoea produced by this reaction may, in turn, cause lactase deficiency.

9. Inside a bacterium there are about 1000 types of enzymes ( lactase being one of them ).

10. The peak volume in hydrogen expiration testing, for those with lactase deficiency and with lactose intolerance appeared in 13 year and 12 year group respectively .

10.

11. Compared with I group, the content of DNA and RNA in small intestine mucosa and the activity of lactase and maltase were increased significantly (P0.05 ) .

12. It simply means that the milk sugar, which is called lactose, can't be properly assimilated by the body because the lactase enzyme is either not there or is in an insufficient amount.

13. Objectivefunctional magnetic microspheres for the separation of vascular endothelial growth factor ( VEGF ) nucleic acid and lactase enzyme immobilization.