Whilst I understand your preference for using fresh, raw produce, I'm interested in your opinion on using canned fruit and vegetables instead (e.g. peaches, plums, beetroot etc)? Also, is there any way to see all the previous Q&A from these questions; I can see two recent ones on your home page but would be interested to read through some more if they lived in a FAQ section or something.
Diet and Nutrition
Understanding Digestive Enzymes in Food
There are many different types of enzymes, which are highly specific to the substances they catalyze, and enzymes aid every metabolic function in the body.