Process Development: From Concept to Commercialization of Enzymatic Corn Wet Milling Process

September 20, 2006 - 12:00pm

Corn is converted into valuable food, fuel and industrial products by the corn wet milling process.  Conventional corn wet milling requires a considerable amount of sulfur dioxide addition to disrupt the protein matrix surrounding the starch particles and to aid the separation of starch and protein during the subsequent milling of corn.  The use of sulfur dioxide, because of its toxicity, is an environmental and health concern.  An enzymatic corn wet milling process has been developed that reduces and potentially eliminates sulfur dioxide requirements during steeping, significantly reduces steeping time, and produces higher starch yields than the conventional process.  The enzymatic corn wet milling process consists of two steps: 1) size reduction of corn after a short water soaking of intact kernels and 2) controlled incubation of the coarsely ground slurry with proteases.  Following the enzyme incubation step, the corn slurry is fractionated using conventional wet milling processes.  Results from laboratory-scale tests show that significantly higher amounts of starch (approximately 1.0%) and total gluten solids (approximately 3.5%) can be obtained with the enzymatic milling process compared to the conventional process.  A commercial trial of the enzymatic process was successfully conducted in a 200 metric ton/day corn wet milling plant in August of 2005.  A commercial license for this technology is currently being negotiated.

Add event to Google Calendar

Announcement List

To be added to our seminar annoucement list please, email ETA Seminars. Seminars may change without notice, stay informed by joining our seminar email list. 

Site Access

For site access please email your request to ETA Seminars. To arrive at Building 90 via the LBNL shuttle, take "Blue Uphill". Click here for the shuttle schedule. To ensure your site access is set-up send your request 36 hours in advance of the seminar.

Remote Access

Not able to attend in person? Remote participants can use ReadyTalk Audio & Net conference to phone in to listen, while viewing the presentation via the ReadyTalk site.

Web Access Code: 4864835

USA & Canada call-in number:
1 (866) 740-1260
Access Code: 4864835#

International callers:
Please visit this website to see if a toll-free call-in number is available for your international location.

If not, you will need to pay for the call yourself and use this phone number:

(303) 248-0285.