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Assessment of the processing conditions which make the Ambrosia seeds non‐viable

Authors :
EFSA Panel on Contaminants in the Food Chain (CONTAM)
Dieter Schrenk
Margherita Bignami
Laurent Bodin
James Kevin Chipman
Jesús delMazo
Bettina Grasl‐Kraupp
Laurentius (Ron) Hoogenboom
Jean‐Charles Leblanc
Carlo Stefano Nebbia
Elsa Nielsen
Evangelia Ntzani
Annette Petersen
Salomon Sand
Tanja Schwerdtle
Christiane Vleminckx
Heather Wallace
Jürgen Gropp
Gerhard Karrer
Anna Christodoulidou
Christer Hogstrand
Source :
EFSA Journal, Vol 21, Iss 7, Pp n/a-n/a (2023)
Publication Year :
2023
Publisher :
Wiley, 2023.

Abstract

Abstract The European Commission requested EFSA to provide an assessment of the processing conditions which make Ambrosia seeds non‐viable in feed materials and compound feed. This assessment also includes information on a reliable procedure to verify the non‐viability of the seeds. Ambrosia seeds are known contaminants in feed with maximum levels set in the Directive 2002/32/EC. The manufacturing processes and processing conditions applied to the feed may affect the viability of the Ambrosia seeds. Therefore, the CONTAM Panel compared these conditions with conditions that have been shown to be sufficient to render Ambrosia seeds non‐viable. The Panel concluded with a certainty of 99–100% that solvent extraction and toasting of oilseed meals at temperatures of 120°C with steam injection for 10 min or more will make Ambrosia seeds non‐viable. Since milling/grinding feed materials for compound feed of piglets, aquatic species and non‐food producing animals would not allow particles of sizes ≥1 mm (the minimum size of viable Ambrosia seeds) passing the grinding process it was considered very likely (with ≥ 90% certainty) that these feeds will not contain viable Ambrosia seeds. In poultry, pig, and possibly cattle feed, particle sizes are ≥ 1 mm and therefore Ambrosia seeds could likely (66–90% certainty) survive the grinding process. Starch and gluten either from corn or wheat wet milling would not contain Ambrosia seeds with 99–100% certainty. Finally, ensiling fresh forages contaminated with A. artemisiifolia seeds for more than 3 months is very likely to render all seeds non‐viable. The Panel concluded that a combination of the germination test and a subsequent triphenyl‐tetrazolium‐chloride (TTC) test will very likely (with ≥ 90% certainty) verify the non‐viability of Ambrosia seeds. The Panel recommends that data on the presence of viable Ambrosia seeds before and after the different feed production processes should be generated.

Details

Language :
English
ISSN :
18314732
Volume :
21
Issue :
7
Database :
Directory of Open Access Journals
Journal :
EFSA Journal
Publication Type :
Academic Journal
Accession number :
edsdoj.00123d6a90f94b009ed3df707da8f60a
Document Type :
article
Full Text :
https://doi.org/10.2903/j.efsa.2023.8102