1-deoxynojirimycin (DNJ) 1% to 30% by HPLC
Mulberry leaf can inhibit the blood glucose rising, the major functional material is that DNJ in mulberry leaf can inhibit the activation of α-glucosaminidase, inhibit catalytic reaction of α-glucosehydrolase, thus stopping and delaying starch food decomposing into monosaccharides of glucose, fructose, etc, and clearly inhibiting blood glucose rising rapidly after food. Mulberry leaf is also a kind of traditional Chinese medicine most in use. Except for expelling wind-evil & clearing heat, clearing liver & improving visual acuity, it still has the effect for preserving youthful looks & blacken hairs. The efficacy of the mulberry leaf is rather wide, including relieving cough, eliminating heat; curing dizzy, clearing eyes’ fatigue; promoting the subsidence of swelling, clearing blood; curing dysentery, stomachache; invigorating liver and skin-care, etc. Mulberry leaf is rich in amino acids, vitamin C and antioxidants.