Edeniq Inc., a leading biotechnology company that develops processes for producing and measuring cellulosic ethanol, announced Aug. 8 that the California Air Resources Board approved Golden Grain Energy LLC for cellulosic ethanol production from corn kernel fiber. Golden Grain, a 120 MMgy corn ethanol plant located in Mason City, Iowa, was certified on Aug. 5 with a carbon intensity (CI) rating of 29.09. Using Intellulose 2.0, the plant achieved corn kernel fiber ethanol production up to, and even at times exceeding, 4 percent of total production. Two plants previously certified by CARB using Edeniq’s Intellulose 2.0 technology achieved average corn kernel fiber ethanol production of approximately 3 percent of total production.

Edeniq’s Intellulose 2.0 technology typically achieves between 2 and 4.5 percent cellulosic ethanol production from the corn kernel fiber at existing corn ethanol plants without any capex requirements. The technology, which was developed over several years and underwent multiple peer reviews, measures the amount of ethanol produced from multiple different molecules present in corn kernels and quantifies the individual contribution of each component. The technology builds on Intellulose 1.0, which measures the cellulosic ethanol produced from a single corn kernel component. Nine Edeniq Intellulose customers were previously approved by the U.S. EPA for D3 RIN generation and/or by CARB for low-CI corn kernel fiber ethanol production; six current and new customers are now using Intellulose 2.0.