An algal sulphated polysaccharide capable of reducing mycotoxin biosynthesis by Fusarium
Rafael Dal Bosco Ducatti1, Siumar Pedro Tironi2 and Sergio Miguel Mazaro1
1Federal University of Technology – Paraná (UTFPR), Pato Branco, PR, Brazil.
2Federal University of Fronteira Sul (UFFS), Chapecó, SC, Brazil.
The incidence of Fusarium sp. in maize, besides causing drops in yields also causes the bromatological quality of the final product to decrease and mycotoxin accumulation to increase. Nineteen field trials have been performed in 4 different states of Brazil during three consecutive harvest seasons using 17 different maize cultivars aiming at assessing the use of carrageenan as a biological compound to decrease mycotoxin biosynthesis and accumulation and, increase maize silage yields and quality. Overall, carrageenan has proven to raise the bromatological quality of the silage, increase yields and decrease fumonisine and deoxynivalenol contamination by 50.4% and 45.7%, respectively.
Carrageenan has the capability to help on the suppression of DON and FUMO biosynthesis/accumulation and to help on the increase of the bromatological quality of maize silage.