METHOD FOR REDUCING ORAL CAVITY STIMULATING SUBSTANCE OF SPROUTED GRAIN

1 . A method for reducing oral cavity stimulating substance of a sprouted grain, wherein oral cavity stimulating substance contained in a sprouted grain are hydrolyzed, whereby the content thereof is reduced.

2 . A method for reducing oral cavity stimulating substance of a sprouted grain, wherein oral cavity stimulating substance in a sprouted gain are removed by adsorption, whereby the content thereof is reduced.

3 . A method for reducing oral cavity stimulating substance of a sprouted grain, wherein oral cavity stimulating substance in a sprouted grain are degraded by an enzyme, whereby the content thereof is reduced.

4 . A method for reducing oral cavity stimulating substance of a sprouted grain, wherein oral cavity stimulating substance in a sprouted grain are removed by separation, whereby the content thereof is reduced.

5 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 1 , wherein the oral cavity stimulating substance are hydrolyzed using an acid.

6 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 5 , wherein the acid is selected from the group consisting of hydrochloric acid, sulfuric acid, phosphoric acid, and acetic acid.

7 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 5 , wherein the acid-assisted hydrolysis is performed at a pH of 0.1 to 3.0.

8 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 1 , wherein the oral cavity stimulating substance are hydrolyzed using an alkali.

9 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 8 , wherein the alkali is selected from the group consisting of sodium hydroxide, potassium hydroxide, and calcium hydroxide.

10 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 8 wherein the alkali-assisted hydrolysis is performed at a pH of 11 to 13.9.

11 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 1 , wherein the oral cavity stimulating substance are hydrolyzed using a high-temperature, high-pressure fluid.

12 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 11 , wherein the fluid temperature is 120 to 220° C.

13 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 11 , wherein the fluid pressure expressed as the gauge pressure is 0.1 MPa to 2.2 MPa.

14 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 11 , wherein the fluid temperature is 120 to 220° C. and the fluid pressure expressed as the gauge pressure is 0.1 to 2.2 MPa.

15 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 14 , wherein the fluid temperature is 140 to 200° C. and the fluid pressure expressed as the gauge pressure is 0.2 to 1.4 MPa.

16 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 11 , wherein the fluid is a fluid containing at least either water or an organic solvent.

17 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 16 , wherein the fluid is water.

18 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 17 , wherein the water is water vapor.

19 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 18 , wherein the water vapor is saturated water vapor.

20 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 2 , wherein the removal by adsorption is performed using a resin or activated carbon.

21 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 20 , wherein the resin is at least one resin selected from the group consisting of adsorption resins, ion-exchange resins, gel filtration resins, and affinity chromatography carriers.

22 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 3 , wherein the enzyme is β-glucosidase or β-glycosidase.

23 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 4 , wherein the removal by separation is performed using a separation membrane.

24 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 23 , wherein the separation membrane is a dialysis membrane or critical filtration membrane.

25 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 4 , wherein the removal by separation is performed using cold water.

26 . The method for reducing oral cavity stimulating substance of a sprouted grain according to claim 1 , wherein the oral cavity stimulating substance are astringent substances.

27 . A method for processing a sprouted grain, comprising a step for reducing the oral cavity stimulating substance of a sprouted grain using one or an arbitrary combination of the reduction methods according to claim 1 .

28 . A method for processing a sprouted grain, comprising a step for promoting transpiration of moisture and swelling by low-pressure exposure of the a sprouted grain treated using a high-temperature, high-pressure fluid in the reduction method cited in claim 17 .

29 . The method for processing a sprouted grain according to claim 28 , characterized in that an extruder is used.

30 . A sprouted grain processed product, which is obtained by the method for processing a sprouted grain according to claim 27 .

31 . A food or beverage product produced using the sprouted grain processed product according to claim 30 as a starting material.

32 . The food or beverage product according to claim 31 , wherein the sprouted grain is malt.