Tech

Biopesticide can be used to break down crop aflatoxins

Corn contaminated with Aspergillus that produces aflatoxin. Credits: Lourena A. Maxwell, Kenneth A. Callicott, Ranajit Bandyopadhyay, Hillary L. Mehl, Marc J. Orbach, Peter J. Cotty

The Food and Agriculture Organization (FAO) says that 25% of the world’s food crops are contaminated with various types of fungal toxins, including aflatoxins produced by certain types of fungi and highly toxic and carcinogenic substances. I’m estimating. Aspergillus. New research published in Plant diseases It reveals a deeper understanding of how members of this same fungal species can be used to reduce aflatoxin in crops.


“Some strains of Aspergillus do not produce aflatoxins and are called toxin-producing strains,” explained plant pathologist Lurena Alone Maxwell, who is part of the team behind the study. “These toxin-producing strains can be defeated Aflatoxin-Generate strains during crop colonization and reduce overall aflatoxin contamination in food and feed produce.. “

This technique Biological control, This refers to the process of controlling agricultural pests using beneficial organisms rather than relying on toxic chemicals. Biological control products or biopesticides using competitive toxinogenic strains have been commercialized and used in North America, Africa, Europe, and Asia. These products are environmentally safe and their use is currently the most effective way to produce safe foods and feeds from aflatoxin contamination.

“Our study provides detailed evidence of the ability of Aspergillus toxinogenic biocontrol strains to not only prevent aflatoxin contamination, but also to degrade aflatoxins already present in the crop,” Maxwell said. .. “And for the first time, we have demonstrated the ability of aflatoxin to function as a nutrient source for toxin-producing strains.”

Biopesticide can be used to break down crop aflatoxins

Lourena A. Maxwell, a plant pathologist who extracts aflatoxins. Credits: Lourena A. Maxwell, Kenneth A. Callicott, Ranajit Bandyopadhyay, Hillary L. Mehl, Marc J. Orbach, Peter J. Cotty

Their findings provide new information and methods that may contribute to a better selection of toxin-producing strains that can be used to reduce aflatoxin contamination with biopesticides. food Feed crops more effectively.

“Furthermore, demonstration of aflatoxin degradation as a new mechanism of aflatoxin degradation stock Reducing aflatoxin in crops aids in aflatoxin management during storage and for industries that expose corn to immersion or fermentation such as both wet and dry grinding and the silage process used in the production of livestock silage. It shows the potential of new applications. ”


New aflatoxin biocontrol products reduce Senegalese peanut and corn contamination


For more information:
Degradation of aflatoxin B1 by Lourena A. Maxwell et al, Atoxigenic Aspergillus flavus Biocontrol Agents, Plant diseases (2021). DOI: 10.1094 / PDIS-01-21-0066-RE

Courtesy of the American Society of Plant Pathology

Quote: Biopesticide is aflatoxin from crops (November 29, 2021) obtained from https: //phys.org/news/2021-11-biopesticides-degrade-aflatoxin-crops.html on November 29, 2021. Can be used to disassemble.

This document is subject to copyright. No part may be reproduced without written permission, except for fair transactions for personal investigation or research purposes. Content is provided for informational purposes only.



Biopesticide can be used to break down crop aflatoxins

Source link Biopesticide can be used to break down crop aflatoxins

Show More

Related Articles

Back to top button