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A collection of 155 accessions of ancient Portuguese common beans ( Phaseolus vulgaris L.) was evaluated in relation to the content of 8 minerals (Zn, Cu, Fe, Mn, Ca, Mg, P and K) important for human nutrition. A high degree of variability for P, Fe, Zn, Cu, Mn and Ca was observed in the...
The composition of pork loin can be modified by nutritional means to improve the nutritional quality of its fatty acid composition. The effects of a modified diet – enriched mainly in n-3 fatty acids – on fat composition in several anatomical locations in the loin is described here. Saturated...
The content of sulfate in water was measured through a back-titration involving addition excess barium chloride, centrifugation and barium quantification in the supernatant via atomic absorption spectroscopy. The results were within 2.0% those found via gravimetric methods (GM). Model...
Although organic baby foods are assumed to be more nutritious than their conventional counterparts, research data in this area are limited and equivocal. The objectives of the present study were first, to determine the carotenoid content of organic and non-organic baby foods; and, second, to...
A seasonal survey of western Canadian retail ground beef was undertaken with emphasis on trans fatty acid ( trans -FA) and conjugated linoleic acid (CLA) isomer profiles. Thirty lean ground beef samples were collected in the winter and summer from major grocery stores in Calgary (Alberta,...
An attempt is made in this work to establish a correlation between surface tension and analytical characteristics of still wines, with the aim of predicting mainly their ethanol, protein and tannin concentrations. First, model solutions of ethanol, bovine serum albumin protein (BSA) and tannins...
Instrumental neutron activation analysis (INAA) is one of the high metrological techniques for mineral determination. Nevertheless, it has some limitations for minerals with low detection limits, such as lead and cadmium, for which graphite furnace atomic absorption spectrophotometry (GF-AAS)...
Concentration of vitamins in infant formula needs to be checked in order to ensure healthy growth and development of infants. A new certified reference material (CRM) of vitamin B 3 (nicotinamide) in infant formula (no. GBW10037) was developed by applying LC–IDMS (liquid...
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