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Conjugated linoleic acid of dairy foods is affected by cows feeding system and processing of milk
Avilez Ruiz, Juan Pablo; Alonzo, Marcelo Wladimir; Delgado Pertíñez, Manuel.
Afiliação
  • Avilez Ruiz, Juan Pablo; Catholic University of Temuco. Temuco. CL
  • Alonzo, Marcelo Wladimir; Milk Company. Osorno. CL
  • Delgado Pertíñez, Manuel; University of Sevilla. Sevilla. ES
Sci. agric ; 73(2): 103-108, Mar.-Apr. 2016. tab, graf
Article em En | VETINDEX | ID: biblio-1497546
Biblioteca responsável: BR68.1
Localização: BR68.1
ABSTRACT
The distribution of conjugated linoleic acid (CLA) in dairy products commercially available in Chile is poorly understood. This study aimed to assess the content of CLA in dairy cow products from Chile and the effect of processing fresh milk into dairy products. Samples of raw milk were categorized into two groups based on the animal feeding system utilized by the dairy farm 1) grazing based systems (Los Lagos region); and 2) housing systems using total mixed ration (TMR) diets (Los Angeles region). Simultaneously, commercial samples of condensed milk, powdered milk, butter and Gouda cheese were analyzed. Furthermore, samples of raw milk and processed products (powdered and sweetened condensed milk) were also analyzed. Dairy farms based on grazing systems had higher levels of CLA in raw milk than TMR farms. In addition, average values of CLA were 1.72 g 100 g1 of total fatty acids, in spring milk in the Los Lagos region, and 0.42 g 100 g1 in summer milk, in the Los Angeles region. Similarly, the CLA content of dairy products was higher than that of raw milk. Milk processing affected the transferring of CLA from fresh milk into the final products. Sweetened condensed milk presented lower CLA values than raw and powdered milk. In conclusion, this study indicates the importance of the production systems to the CLA content as well as the effects of milk processing into dairy products. To sum up, more research is needed to elucidate the exact effect of the processing conditions of dairy products on the CLA content.
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Texto completo: 1 Base de dados: VETINDEX Assunto principal: Ácido Linoleico / Laticínios / Indústria de Laticínios Limite: Animals Idioma: En Revista: Sci. agric / Sci. agric. Ano de publicação: 2016 Tipo de documento: Article / Project document
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Base de dados: VETINDEX Assunto principal: Ácido Linoleico / Laticínios / Indústria de Laticínios Limite: Animals Idioma: En Revista: Sci. agric / Sci. agric. Ano de publicação: 2016 Tipo de documento: Article / Project document