The corn spermoderm is one of the main by-products of corn processing industry. At present, it was used for the feed industry, which caused a serious waste of resources and reduced the added value. The principal constituent of the corn spermoderm is the corn spermoderm dietary fiber which is an excellent raw material of dietary fiber processing. If corn spermoderm wasn't processed, it would be only an ordinary dietary fiber. And it can not be easily absorbed by human body and it had tiny function for human ...