News last update:6 Aug 2012

Four crops added to mycotoxin test kit list

USDA and GIPSA approved the use of the Charm Sciences ROSA ® Zearalenone (Quantitative) to test sorghum, milled rice, wheat, and distillers dried grains with solubles. It was first only allowed to test the mycotoxin Zearalenone in corn.

The ROSA Zearalanone test is the only test to be approved for official testing of Zearalenone in the US national grain inspection system. It meets the accuracy specifications for the listed commodities spiked at 250 and 1000 ppb." In addition, the "30 ppb limit of detection was also met for all listed commodities."

How it works
Charm's ROSA (Rapid One Step Assay) Zearalenone test procedure includes a sample extraction and 10 minute incubation. A test strip is then inserted into a digital ROSA-M strip reader. Quantitative results are displayed and recorded on the reader (with automatic printing and download options). Other ROSA tests include the 3 minute Aflatoxin P/N, the 3 minute DON P/N, the 10 minute ROSA Aflatoxin Quantitative, which have already received approval from USDA GIPSA. A 10 minute quantitative test for DON and fumonisin were recently added to the ROSA mycotoxin family. All ROSA mycotoxin tests can be run on the same equipment.

Estrogenic mycotoxin
Zearalenone can appear in pre-harvest corn, wheat, rice or maize by several species of Fusarium, e.g., F. graminearum. Swine are particularly susceptible to the presence of Zearalenone in feedstuffs as it is an estrogenic mycotoxin, which can cause infertility, or other breeding problems.

Related website:
Charm Sciences, Inc

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