1. Red clover-rich grassland increases equol concentration in eggs from free-range laying hens
- Author
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Virginie Decruyenaere, Gilles Rousseau, Eric Froidmont, Yvan Larondelle, Yves Beckers, Victoria Tosar, and UCL - SST/LIBST - Louvain Institute of Biomolecular Science and Technology
- Subjects
endocrine system ,040301 veterinary sciences ,Eggs ,Metabolite ,Pasture ,Grassland ,0403 veterinary science ,chemistry.chemical_compound ,Animal science ,Animals ,Ovum ,geography ,geography.geographical_feature_category ,Chemistry ,Daidzein ,0402 animal and dairy science ,food and beverages ,04 agricultural and veterinary sciences ,General Medicine ,Equol ,Animal Feed ,040201 dairy & animal science ,Diet ,Red Clover ,Polyphenol ,Female ,Trifolium ,Animal Science and Zoology ,Chickens ,Food Science - Abstract
1. The aim of this study was to evaluate the production of equol (4ʹ,7-isoflavandiol; a bacterial polyphenol metabolite which is an isoflavandiol oestrogen metabolised from daidzein from plants) enriched eggs from free-range hens fed different pasture species. Four species were tested: red clover, white clover, ryegrass and chicory. 2. The study was conducted from June to September 2017 on eight free range, outdoor areas, each containing fifteen laying hens and sown with a single pasture species 3. Precursors of equol (daidzein, formononetin) were analysed every fortnight from the fresh pasture cover in each area, as well as equol and daidzein levels in eggs. 4. Daidzein and formononetin concentrations in the fresh pasture samples differed significantly according to species (P
- Published
- 2021
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