Method for reduction of acrylamide in cocoa products, cocoa products having reduced levels of acrylamide, and article of commerce
Roasted cocoa beans having reduced levels of acrylamide, cocoa beans having reduced levels of asparagine, and an article of commerce. In one aspect, the invention provides a method for reducing the level of acrylamide in roasted cocoa beans comprising reducing the level of asparagine in cocoa beans. In another aspect, the invention provides a method for reducing the level of asparagine in cocoa beans comprising adding an asparagine-reducing enzyme to cocoa beans. In still another aspect, an article of commerce communicates to the consumer that the product comprising cocoa beans has reduced or low levels of asparagine and/or acrylamide.
1. A method for reducing the level of acrylamide formation in cocoa beans which comprise soluble materials and asparagine using an asparaginase-reducing enzyme, said method comprising the step of extracting at least a portion of asparagine from said cocoa beans to form an extract, contacting said extract with said enzyme for a sufficient amount of time to reduce the level of asparagine at least about 10%, and adding back at least a portion of said extract comprising said soluble materials to at least a portion of said cocoa beans, followed by roasting said beans.
2. A method according to claim 1 which employs a dominant bath comprising said enzyme, whereby soluble materials in said beans, with the exception of said asparagine, do not continue to extract out of said beans, once equilibrium has been reached.
3. A method according to claim 1 , wherein said cocoa beans are winnowed to form nibs prior to extraction and contact with said enzyme.
4. A method according to claim 2 , wherein said beans are winnowed to form nibs prior to contact with said enzyme-containing dominant bath.