Chemometrics applied to the incorporation of omega-3 in tilapia fillet feed flaxseed flour
AUTOR(ES)
Nishiyama, Márcia Fernandes, Souza, Aloisio Henrique Pereira de, Gohara, Aline Kirie, Santos, Hevelyse Munise Celestino dos, Oliveira, Carlos Antonio Lopes de, Ribeiro, Ricardo Pereira, Souza, Nilson Evelázio de, Gomes, Sandra Terezinha Marques, Matsushita, Makoto
FONTE
Food Sci. Technol
DATA DE PUBLICAÇÃO
09/09/2014
RESUMO
This study evaluated the effect of adding flaxseed flour to the diet of Nile tilapia on the fatty acid composition of fillets using chemometrics. A traditional and an experimental diet containing flaxseed flour were used to feed the fish for 60 days. An increase of 18:3 n-3 and 22:6 n-3 and a decrease of 18:2 n-6 were observed in the tilapia fillets fed the experimental diet. There was a reduction in the n-6:n-3 ratio. A period of 45 days of incorporation caused a significant change in tilapia chemical composition. Principal Component Analysis showed that the time periods of 45 and 60 days positively contributed to the total content of n-3, LNA, and DHA, highlighting the effect of omega-3 incorporation in the treatment containing flaxseed flour.
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