Mist Chemical


DeLasan CMT™

Though distillers dried grains (DDGs) provide a valuable feed product many cattle feeders are reluctant to use the product if it contains trace antibiotics. Those remnants of antibiotics are thought to contribute to antibiotic resistant bacteria strains.

Realizing the FDA is currently considering a ban on antibiotics in distillers’ grains production. Mist Chemical and DeLaval developed antibiotic-free DeLasan CMT (corn mash treatment).

DeLaval is a world leader in the dairy farming industry, providing integrated milking solutions designed to improve dairy farmers’ production, animal welfare and overall quality of life.

In testing, DeLasan proves both effective and cost-conscious with these specific results:

  • Both lactic acid and acetic acid maintained normal ranges.
  • Overall organic acids at drop were the same with DeLasan CMT as with antibiotics.
  • Significantly lower glycerol levels.
  • More efficient total sugar conversion.
  • Elevated ethanol production.
  • Balanced carbohydrates, ethanol and organic acid throughout the process.
  • Unlike antibiotics and sodium chlorite, DeLasan leaves no residue.

Regulatory Compliance

With a goal of becoming your valuable resource, Mist Chem brings you only products and service that achieve regulatory standards. We heartily endorse your commitment to addressing The Food Safety Modernization Act goals through best manufacturing processes.

DeLasan CMT meets those requirements. Our confidence in its safety is backed by the time and effort needed to secure a GRAS (generally recognized as safe) designation from the Food and Drug Administration. Every ingredient in DeLasan is additionally approved by The Association of American Feed Control Officials (AAFCO). 

DeLasan CMT ™ Research Case Study

Antibiotics in the distillers’ dried grains (DDGs) process present two disadvantages for ethanol plants. First, there is a rising tide of consumer resistance to antibiotics in animal feed. Also, acid bacteria can become resistant over time, rendering antibiotics less effective in the process and reducing ethanol production.

This study tested DeLasan CMT performance in a 55-million-gallons-per-year Delta T design ethanol plant where management chose to create antibiotic-free DGs while increasing ethanol yield.

Test procedure:

DeLasan CMT and 31% hydrogen peroxide were added at 2.4 gallons and 4 gallons, respectively, to a stainless steel pipe that carried the mixture to a header located between the first- and second-stage mash coolers. At point of injection, mash temperature was 140 degrees F. The mash flow rate was 600 grams per minute. Both pumps were Prominent brand diaphragm pumps fitted with Teflon® liquid ends.

Hourly samples were evaluated with a Hach DPD total chlorine test. Results were compared with historical averages of antibiotic use in the process.

Test results:

  • Five months of operating results using the DeLasan mixture indicate a reduction in lactic acid from 0.07% to 0.03%.
  • Acetic acid fell in normal ranges between 0.2% and 0.06%.
  • Backset increased from 14% to 31%.
  • Results showed no change in glycerol numbers though, given the higher backset percentage higher glycerol would have been expected.
  • Ethanol production increased by 1.3%. This result most likely stemmed from decreased lactic acid production in the fermenter.


The five-month test yielded extremely positive results with no negative effects on the balance of carbohydrates, ethanol and organic acids. Yeast cell counts and viability tests were all in the normal range. Increased backset resulted in lighter-colored, more marketable distillers’ dried grains.


DeLasan CMT was effectively used to replace antibiotics in DGs production. The program also proved less costly than antibiotics while contributing to a 1.3% net ethanol production increase. In a 55 million gallon per year plant that amounts to increased yearly profits of $1.6 million.

Contact us for complete test results