Corn consumption in China, the world's second-largest market, remains resilient even after prices rallied to a record in Chicago.

"We still have strong demand from countries like China," said Bill Barbour, an investment specialist for the DWS Global Agribusiness fund, in a Bloomberg Television interview on Wednesday. "There's not been much demand destruction."

Corn, used in feeds and ethanol production, rallied 24 percent this year, reaching a record last month, as the driest summer since 1936 in the US Midwest damaged crops.