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Myco CURB™

Mold Inhibition Performance

Kemin is among the first to use blended acids for feed preservation. For the past few decades, Kemin’s R&D team optimized the Myco CURB™ formulations and the resulting formulations are still the industry standard for mold control in feed. Numerous studies were conducted over the years, to demonstrate that Myco CURB™ is highly effective to retard mold growth and yet is safe for handling.


Mold Inhibition Efficacy - CO2 Test

A carbon dioxide (CO2) test was done to evaluate the efficacy of Myco CURB™ Extend Liquid towards inhibiting mold growth. The growth rate of mold in a sample was measured based on the amount of carbon dioxide released in a closed system.

As shown in figure 1, corn that was treated with Myco CURB™ Extend Liquid, produced less carbon dioxide compared to the control, indicating that Myco CURB™ Extend Liquid was effective in retarding mold growth.

KAA MycoCURB graph
Figure 1. Myco CURB™ Extend Liquid producing lesser carbon dioxide than control.


Feed Challenged with Higher Moisture

A challenged commercial trial was carried out to study the efficacy of Myco CURB™ Aw Liquid in preserving the pellet feed with the addition of 2% moisture for two months storage. Table 1 shows that Myco CURB™ Aw Liquid worked effectively in inhibiting mold growth in the feed despite higher feed moisture.

Table 1. Challanged commercial trial to evaluate Myco CURB™ Aw Liquid in preserving feed with the addition of 2% moisture.
  Feed moisture (%) Mold Count (cfu/g)
  Control Feed Treated feed with Myco CURB™ Aw Liquid Control Treated feed with Myco CURB™ Aw Liquid
Month 0 10.33 12.22 < 100 < 100
Month 1 10.62 12.14 < 100 < 100
Month 2 10.40 12.37 < 100 < 100

Mold Count and Microbiological Quality Indication

Table 2. Mold count and microbiological quality indication.

Reference: Department of Dairy and Animal Science, The Pennsylvania State University

Colony Forming Units (CFU) per gram Rating
< 5 x 105 Low count / Safe
5 x 105 to 1 x 106 Relatively safe
1 x 106 to  5 x 106 Feed with caution and closely observe animal and performance
Above 5 x 106 Discontinue feeding



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