The total fat content was analysed by the gravimetric method NMKL 131, fat, determination by SBR in meat (NMKL., 1989). In intermediate time, samples were stored at -20°C. In order to follow trends in FA over time, results were compared with data from the Swedish part of the TRANSFAIR study (Becker, 1998) and analyses from two subsequent NFA surveys (Mattisson et al., 2009 and Wallin
et al., 2009). To compare differences over time, mean values were used if the product was analysed from more than one producer; this was necessary as samples from 1995-97 were pooled in equal amounts prior to analysis. The fat content for each sample and the percentages of total SFA, MUFA, PUFA and individual TFA are presented in Table 1; all data are expressed as% of total FA. Data are only shown, if the FA was present at > 0.5% of total FA in at least one product; if the FA are present in one product > 0.5%, lower values may be present www.selleckchem.com/products/Bosutinib.html for this FA in other products. For TFA, all values are
included. The mean TFA level in bakery products analysed in 2001 was 5.9% of total fatty acids, compared with 0.7% in products analysed in 2007. Values for individual products ranged from non-detectable VRT752271 in vitro to about 14% in both periods. In 2001, 27 of 34 products (79%) had TFA levels higher than 2% while, in 2007, only 3 of 41 products (7%) exceeded this level. The three gluten-free biscuits analysed in 2006 had TFA levels above 2%, but after reformulation TFA levels were 0.5-0.7% (Table 1). Table 2 shows total fat content, and percentage of SFA, MUFA, PUFA, TFA, and 18:2 n-6 from products analysed at more than one time point, 1995-97 (Becker, 1998), 2001, 2006 and 2007. For TFA, the amount expressed in g/100g of product is also given. The total fat content was largely unchanged over time. The levels of TFA, expressed both FAD as percentage of total FA and in g/100g product, decreased from 1998 and 2001 compared to 2006 and 2007. During the same period, the percentage of SFA had increased. In total, the levels of MUFA and PUFA remained stable; however, in some products, percentage of PUFA increased, mainly
as linoleic acid (18:2 n-6) (Table 2). In general, the levels of TFA in the sampled product categories on the Swedish market decreased during the years from 1995-97 to 2007. Mean TFA level in products/product categories analysed, in the Swedish TRANSFAIR study of 1995-7, was 14.3%, compared to 5.9% and 0.7% in products analyzed in 2001 and 2007, respectively. In the TRANSFAIR study, products of the same category/type were, in such cases, merged into one aggregated analytical sample, representing 2-5 different brands, mixed according to market shares, where available. In the present study, samples of the same product type were analyzed separately. In 1995-97 TFA levels higher than 2% of total FA were detected in 20 of 21 products (aggregates), compared to 3 of 41 products in 2007.