Cocoa beans with reduced polyphenol oxidase activity and high polyphenol content
The present invention relates to a process for reducing the polyphenol oxidase activity in cocoa beans comprising the step of steaming non-fermented, non-roasted raw cocoa beans with water vapor.
1. A process for reducing the polyphenol oxidase activity in cocoa beans comprising the step of combined steaming and drying of non-fermented, non-roasted raw cocoa beans with water vapor to provide reduced polyphenol oxidase activity cocoa beans, wherein the non-fermented, non-roasted raw beans are selected from the group comprising slaty, brown and violet cocoa beans.
2. The process according to claim 1 , wherein the polyphenol oxidase activity of the reduced polyphenol oxidase activity cocoa beans is reduced by at least 50% based on the polyphenol oxidase activity of the non-fermented, non-roasted raw cocoa beans.
3. The process according to claim 1 , wherein the reduced polyphenol oxidase activity cocoa beans have a total polyphenol content after the step of combined steaming and drying of at least 1 g polyphenols per 100 g of reduced polyphenol oxidase activity beans.
4. The process according to claim 2 , wherein the reduced polyphenol oxidase activity cocoa beans have a total polyphenol content after the step of combined steaming and drying of at least 1 g polyphenols per 100 g of reduced polyphenol oxidase activity beans.
5. The process according to claim 1 , wherein the step of combined steaming and drying is carried out at a temperature of from 70-120° C.
6. The process according to claim 2 , wherein the step of combined steaming and drying is carried out at a temperature of from 70-120° C.
7. The process according to claim 3 , wherein the step of combined steaming and drying is carried out at a temperature of from 70-120° C.
8. The process according to claim 4 , wherein the step of combined steaming and drying is carried out at a temperature of from 70-120° C.
9. The process according to claim 3 , further comprising one or more of the steps of fermenting, or roasting the reduced polyphenol oxidase activity cocoa beans after the combined steaming and drying step.
10. The process according to claim 4 , further comprising one or more of the steps of fermenting, or roasting the reduced polyphenol oxidase activity cocoa beans after the combined steaming and drying step.
11. The process of claim 1 , wherein during the combined steaming and drying step the water content of the vapor is reduced.