by Tim Hall on Fri Aug 30, 2013 8:42 am
Scientific answer: The scenario you present is way too complex for anyone (scientists included) to accurately speculate on without actual testing and data collection. Does anyone even know what specific enzymes are expressed in rejuvelac (maybe do a search in scientific publications)?
Non-scientific answer: If the latter extreme result is what you're aiming for, doubtful. Enzymes will only stretch so far, and then you need the right ones, operating under the right conditions. Miso, natto, tempeh will probably get you closer. Especially miso.
I suspect the rejuvelac will help with the phytates and probably break down some of the proteins. But to really work on the proteins the way you're talking about, you need some powerful enzymes (such as those expressed by Aspergillus) operating at optimum conditions (+/-100F in a moderately acidified environment), probably longer than 8 hours.
Cooking also denatures proteins.