Ethanol production is gradually becoming more efficient.

Danish biofuel firm Novozymes says it has developed a new enzyme that will help ethanol producers make more fuel while using less corn.

Novozymes, which has a major enzyme plant in Blair, says its Avantec enzyme makes corn ethanol production 2.5 percent more efficient.

Novozymes officials say the development should help ethanol producers at a time when corn prices are high and profit margins remain narrow.