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	Provedor de dados Organic Eprints (2) Autor Butler, Gillian (2) Eyre, Mick D. (2) Leifert, Carlo (2) Sanderson, Roy (2) Collomb, Marius (1) Nielsen, Jacob H. (1) Rehberger, Brita (1) Seal, Chris (1) Slots, Tina (1) Mais... Palavra-chave Food quality and human health Dairy cattle (2) Food security (2) Tipo do documento Journal paper (2) Ano 2009 (1) 2008 (1) País Germany (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Conjugated linoleic acid isomer concentrations in milk from high- and low-input management dairy systems Organic Eprints Butler, Gillian; Collomb, Marius; Rehberger, Brita; Sanderson, Roy; Eyre, Mick D.; Leifert, Carlo. BACKGROUND: Different conjugated linoleic acid (CLA) isomers are known to have contrasting physiology or health effects and there is growing evidence that the profile of natural isomers in milk is influenced by the production system. This survey is the first to compare feeding regimes and concentrations of 14 CLA isomers inmilk from three production systems in the UK. RESULTS: Total CLA and seven isomers (including C18 : 2 c9t11 which comprised >80% of total) were significantly higher in milk from both organically certified and non certified low input (LI) systems compared with milk from conventional high input farms. Sampling date also affected concentrations of total CLA and nine isomers; being lowest in March and highest in August. Seasonal... Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Dairy cattle. Ano: 2009 URL: http://orgprints.org/16012/1/Butler%2Detal%2D2009%2Disomer_paper%2DJ_Sci_Food_Agric_89.pdf Fatty acid and fat-soluble antioxidant concentrations in milk from high- and low-input conventional and organic systems: seasonal variation Organic Eprints Butler, Gillian; Nielsen, Jacob H.; Slots, Tina; Seal, Chris; Eyre, Mick D.; Sanderson, Roy; Leifert, Carlo. BACKGROUND: Previous studies showed differences in fatty acid (FA) and antioxidant profiles between organic and conventional milk. However, they did not (a) investigate seasonal differences, (b) include non-organic, lowinput systems or (c) compare individual carotenoids, stereoisomers of α-tocopherol or isomers of conjugated linoleic acid. This survey-based study compares milk from three production systems: (i) high-input, conventional (10 farms); (ii) low-input, organic (10 farms); and (iii) low-input non-organic (5 farms). Samples were taken during the outdoor grazing (78 samples) and indoor periods (31 samples). RESULTS: During the outdoor grazing period, on average, milk from the low-input systems had lower saturated FAs, but higher mono- and... Tipo: Journal paper Palavras-chave: Food security; Food quality and human health Dairy cattle. Ano: 2008 URL: http://orgprints.org/16010/1/Butler%2Detal%2D2008%2DJ_Sci_Food_Agric_88.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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