The Trans Fatty Acids Content of Selected Foods in Malaysia
- Author:
Akmar ZD
;
Norhaizan ME
;
Azimah R
;
Azrina A
;
Chan YM
- Publication Type:Journal Article
- Keywords:
Malaysian foods, trans fatty acids (TFA), isomers of TFA, palmitoelaidic, linoelaidic, elaidic, vaccenic and palm oil
- From:
Malaysian Journal of Nutrition
2013;19(1):87-98
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: There is a lack of information on the trans fatty acid (TFA) content
in Malaysian foods. The objective of this study is to determine the TFA content
of bakery products, snacks, dairy products, fast foods, cooking oils and semisolid
fats, and breakfast cereals and Malaysian fast foods. This study also estimated
the quantity of each isomer in the foods assayed. Methods: The trans fatty acid
content of each food sample was assessed in duplicate by separating the fatty
acid methyl esters (FAME) in a gas chromatography system equipped with HP-
88 column (USA: split ratio 10: 1) for cis/trans separation. Five major TFA isomers,
palmitoelaidic acid (16: 1t9), petroselaidic acid (18:1t6), elaidic acid (18:1t9),
vaccenic acid (18: 1t11) and linoelaidic acid (18:2t9, 12), were measured using gas
chromatography (GC) and the data were expressed in unit values of g/100 g
lipid or g/100 g food. Results: The total TFA contents in the studied foods were
<0.001 g-8.77 g/100 g lipid or <0.001 g-5.79 g/100 g foods. This value falls within
the standard and international recommendation level for TFA. The measured
range of specific TFA isomers were as follows: palmitoelaidic acid (<0.001 g-0.26
g/100 g lipid), petroselaidic acid (<0.001 g – 3.09 g/100 g lipid), elaidic acid
(<0.001 g-0.87 g/100 g lipid), vaccenic acid (<0.001 g-0.41 g/100 g lipid) and
linoelaidic acid (<0.001 g-6.60 g/100 g lipid). Conclusion: These data indicate
that most of the tested foods have low TFA contents (<1 g/100 g lipid).
- Full text:W020150716397994055778.pdf
