Healthcare food with anti-diabetic effect and preparation method thereof

1. A healthcare foodstuff having an anti-diabetic effect, wherein said healthcare foodstuff comprises effective ingredients and one or more adjuvants, in which the effective ingredients comprise Paederia scandens , coicis semen, pork and citri reticulatae pericarpium, and wherein the Paederia scandens , coicis semen, pork and citri reticulatae pericarpium are water extracts from respective medical material thereof, and the adjuvant is water-soluble starch.

2. The healthcare foodstuff according to claim 1 , wherein the weight ratio of Paederia scandens , coicis semen, pork and citri reticulatae pericarpium in the effective ingredients is approximately 12:6:6:1.

3. The healthcare foodstuff according to claim 1 , wherein the healthcare foodstuff is prepared by a method comprising the steps of:

extracting the effective ingredients and decocting in water twice to obtain to decoctions;

concentrating the two decoctions via filtration and vacuum concentration and evaporation; and

sieving a filtrate that results from the concentrating step until a plaster is obtained.

4. The healthcare food with anti-diabetic effect of claim 3 , wherein the decoction steps comprise:

during the first decoction, adding water in an amount of 7 times of the effective ingredients, soaking 30 min and decocting for 1 hour; and

during the second decoction, adding water in an amount of 6 times of the effective ingredients, and decocting for 1 hour.

5. The healthcare foodstuff according to claim 4 , wherein the healthcare foodstuff can be formulated into tablets, capsules, oils, granules, dripping pills or oral solutions.

6. The healthcare foodstuff according to claim 5 , wherein the healthcare foodstuff is used to treat type 2 diabetes mellitus.

7. The healthcare foodstuff according to claim 5 , wherein the granules are prepared by a method comprising the steps of:

spray dry granulation, wherein a plaster filtrate comprising the effective ingredients and a soluble starch are heated in a spray drying granulator to obtain dry powder, the dry powder undergoes spray dry granulation; and

dry granulation, wherein the dry powder is stabilized to form extruded strips, the strips are crushed, sieved, filtered and dry granulated to form granules.

8. The healthcare foodstuff according to claim 7 , wherein the parameters for the spray drying process in the spray drying step are: inlet air temperature is 115° C.-125° C.; outlet air temperature is 90° C.-110° C.; and minus pressure in spray dryer is −8 to −12 Pa.

9. The healthcare foodstuff according to claim 8 , wherein an atomized state must be monitored at all times during the spray drying process, and the spray drier is vibrated periodically until dry powders are obtained.

10. The healthcare foodstuff according to claim 7 , wherein the inlet air speed, outlet air speed and feeding rate in the spray granulation step should be well controlled to afford granules with uniform size.