Ergosterol and polyphenol contents as rapid indicators of orchardgrass silage safety

The ergosterol (ERG) has been proposed as a potential indicator of fungal contamination, along with polyphenol content analysis to predict silage safety. Despite efforts in controlling fungal growth in silage, mycotoxin co-contamination represents a possible risk for animal and human health. Modern...

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Published in:Heliyon 2023-04, Vol.9 (4), p.e14940-e14940, Article e14940
Main Authors: Alba-Mejía, Jhonny E., Dohnal, Vlastimil, Domínguez-Rodríguez, Gloria, Středa, Tomáš, Klíma, Miroslav, Mlejnková, Veronika, Skládanka, Jiří
Format: Article
Language:English
Subjects:
Additives
Dactylis glomerata
Fungal marker
Livestock
Silage quality
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Summary:The ergosterol (ERG) has been proposed as a potential indicator of fungal contamination, along with polyphenol content analysis to predict silage safety. Despite efforts in controlling fungal growth in silage, mycotoxin co-contamination represents a possible risk for animal and human health. Modern analytical techniques determine a multitude of fungal metabolites contaminating feed. Nonetheless, these methods require sometimes arduous sample pre-treatment, long separation times, and expensive standard compounds to identified contaminants. Thus, the goal of this study was to suggest a rapid analysis of ERG and polyphenol contents to assess silage hygienic quality in ten orchardgrass varieties ensiled without and with biological and chemical additives. The determination of ERG on samples was performed by high-performance liquid chromatography using UV detection and UV/Vis spectrophotometry to determine the polyphenol content. Statistically significant differences (P 
ISSN:2405-8440
2405-8440
DOI:10.1016/j.heliyon.2023.e14940