Leonardo Merino

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This study examines the intake of nitrate and nitrite in Swedish children. Daily intake estimates were based on a nationwide food consumption survey (4-day food diary) and nitrite/nitrate content in various foodstuffs. The mean intake of nitrite from cured meat among 2259 children studied was 0.013, 0.010 and 0.007 mg kg(-1) body weight day(-1) in age(More)
Nitrite and nitrate are used as additives in the food industry to provide color and taste and to control undesirable gas and flavor production by anaerobic bacteria by virtue of their antimicrobial properties. The analytical method that has been widely used to determine nitrite and nitrate involves the use of toxic cadmium. In response to a request from the(More)
Monitoring of nitrate in Swedish-produced lettuce and spinach over the past 10 years (1996-2005) showed that more than 95% of the samples were below the maximum levels established by the European Commission in 1997. The good agricultural practices used by Swedish farmers may partly explain these results. Analytical results of organic farming production of(More)
A new Heterorhabditis species of entomopathogenic nematode was isolated from soil of the Atacama Desert in Chile. The new species is characterized by morphometrics of the infective juvenile (IJ) with length (L) = 611 (578-666) μm, head to excretory pore length (EP) = 115 (101-126) μm, tail = 69 (62-79) μm long, (EP/tail) × 100 (E%) = 165 (149-182) and(More)
A liquid chromatographic method for quantitative determination of carmine (E120) in different foodstuffs is described. Qualitative and semiquantitative methods for analysis of carmine and other related dyes are well established. However, quantitative methods available are based mainly on enzymatic reactions that are time-consuming or specific for analysis(More)
The food additive nitrite (E249, E250) is commonly used in meat curing as a food preservation method. Because of potential negative health effects of nitrite, its use is strictly regulated. In an earlier study we have shown that the calculated intake of nitrite in children can exceed the acceptable daily intake (ADI) when conversion from dietary nitrate to(More)
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