Soybeans are commonly used for their oil and proteins. However, the carbohydrate rich fibers can be converted into fermentation feedstock. This carbohydrate liquid can then be fermented into many different products, including ethanol, butanol, enzymes, succinic acid, etc. Dr. Al Loman and Dr. Ju have written a nice summary of the different technologies in Process Biochemistry. The April In-Press version was posted online for your reading.