In a message dated 7/17/00 4:02:22 PM Eastern Daylight Time, JGedney at dictaphone.com writes: << Alpha-amylase and Beta-amylase are what the _plant_ uses to convert the starches in the endosperm to simple sugars >> Thank you! (obviously...plant biology is not my strong suit) So...whole wheat would be better for sourdough also?? Etain