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Trans fatty acids in milk fat

100%

Zegarska Z., Paszczyk B., Borejszo Z.

Polish Journal of Food and Nutrition Sciences

1996

tom 05

nr 3

The trans fatty acids in milk fat from the indoor feeding ( March, April) and the pasture feeding period (May) were determined. An argentation thin layer chromatography (Ag-TLC) and gas liquid chromatography (GLC) on a polar capillary column (CP Sil 88) were used.The content of trans fatty acids in milk fat showed considerable seasonal variations. The trans 18:1 content for the pasture period was 5.73 g/100 g milk fat (MF) and only 1.83 g/100 g MF for the indoor feeding period. About one-half of trans 18:1 isomers in the samples from the indoor feeding period and more than 60% in the samples from May was trans-11 18:1 acid. The level of two trans 18:2 isomers (cis-trans and trans-cis) was about 4 times higher (0.81 g/100 g MF) in the pasture feeding period than in the indoor feeding period (0.18 g/100 g MF).

Ograniczanie wyników

1 Polish Journal of Food and Nutrition Sciences

1 Borejszo Z.

1 Paszczyk B.

1 Zegarska Z.

1 1996

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Trans fatty acids in milk fat