Search results for "Cereals"

A nutrition intervention with a main focus on vegetables and bread consumption among young men in the Norwegian National Guard

2013

Background : Young men are difficult to reach with conventional nutrition information and they have a low intake of vegetables and whole grain cereals. Few intervention studies have focused on improving young men’s consumption of vegetables and whole grains. Objective : A 5-month intervention focusing on a combination of increased availability of healthy foods and nutritional information was developed to stimulate the intake of vegetables and semi-whole grain bread among a group of young men in the Norwegian military. Subjects : A total of 376 recruits in the intervention group and 105 recruits in the control group participated in the entire study. Results: The average daily increase in con…

Shared midgut binding sites for Cry1A.105, Cry1Aa, Cry1Ab, Cry1Ac and Cry1Fa proteins from Bacillus thuringiensis in two important corn pests, Ostrin…

2013

First generation of insect-protected transgenic corn (Bt-corn) was based on the expression of Cry1Ab or Cry1Fa proteins. Currently, the trend is the combination of two or more genes expressing proteins that bind to different targets. In addition to broadening the spectrum of action, this strategy helps to delay the evolution of resistance in exposed insect populations. One of such examples is the combination of Cry1A.105 with Cry1Fa and Cry2Ab to control O. nubilalis and S. frugiperda. Cry1A.105 is a chimeric protein with domains I and II and the C-terminal half of the protein from Cry1Ac, and domain III almost identical to Cry1Fa. The aim of the present study was to determine whether the c…

Gluten-free flours from cereals, pseudocereals and legumes: Phenolic fingerprints and in vitro antioxidant properties.

2018

The interest in gluten-free (GF) products increases together with the increase in gluten-sensitive people. However, GF foods might have decreased nutritional quality as compared to the gluten containing counterparts. In this work, an investigation of the phenolic and antioxidant profile in 18 GF flours belonging to legumes, cereals and pseudocereals was achieved. Significant differences could be observed across samples. Total phenolic content was highest in violet rice flours, whereas total anthocyanins were highest in violet, nerone, and black rice flours. FRAP and ORAC antioxidant activities were correlated to phenolic contents and found to be higher in violet rice flours. Metabolomics hi…

Ressources et économie agricole en France à l’âge du Bronze et au premier âge du Fer: les données carpologiques

2017

International audience; Les graines et les fruits conservés en contexte archéologique constituent un moyen direct de percevoir les ressources végétales des sociétés passées, les pratiques que celles-ci mettaient en oeuvre pour les exploiter, et donc plus particulièrement l’économie agricole. Aborder ces questions sur de grandes échelles d’espace ou de temps demande de compiler les données provenant de nombreux sites archéologiques. L’enquête nationale conduite sur « L’habitat et l’occupation des sols à l’âge du Bronze et au début de l’âge du Fer » a procuré l’occasion et les moyens de réunir la communauté des archéobotanistes (carpologues) à l’échelle nationale afin de mettre en commun nos …

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Could a wrong consumption of cereals influence preteens obesity in Sicily?

2015

Optimization of Matrix Solid-Phase Dispersion method for simultaneous extraction of aflatoxins and OTA in cereals and its application to commercial s…

2010

Abstract A method based on Matrix Solid-Phase Dispersion (MSPD) has been developed for the determination of 5 mycotoxins (ochratoxin A and aflatoxins B and G) in different cereals. Several dispersants, eluents and ratios were tested during the optimization of the process in order to obtain the best results. Finally, samples were blended with C 18 and the mycotoxins were extracted with acetonitrile. Regarding to matrix effects, the results clearly demonstrated the necessity to use a matrix-matched calibration to validate the method. Analyses were performed by liquid chromatography–triple quadrupole-tandem mass spectrometry (LC–QqQ-MS/MS). The recoveries of the extraction process ranged from …

Determination of inorganic species of Sb and Te in cereals by hydride generation atomic fluorescence spectrometry

2011

A non-chromatographic fast, sensitive and easy method has been developed for the determination of Sb(III), Sb(V), Te(IV) and Te(VI) in cereal samples. The procedure is based on ultrasound assisted extraction and determination by hydride generation atomic fluorescence spectrometry (HG AFS). Preliminary studies were made in order to get the best extraction efficiency using 1 mol L-1 phosphoric acid, 1 mol L-1 nitric acid, aqua regia, 1 mol L-1 sulfuric acid and 6 mol L-1 hydrochloric acid. The extraction with aquaregia showed a clear interconversion of the species during the process, being H2SO4 the best extractant with efficiencies greater than 90% from the total content of Sb and Te quantif…

Control de micotoxines en cereals i derivats per cromatografia liquida espectrometria de masses : avaluació de les ingestes

2012

Mycotoxins are secondary metabolites produced by few fungal species that readily colonize crops and contaminate them with toxins in the field or after harvest. Surveillance studies have showed that mycotoxin contamination is a world-wide problem, since it is estimated that 25% of the world's crop production and 20% of crop production within the European Union may be contaminated with these contaminants. Economic losses deriving from that are tremendous, including reduction of livestock production and agricultural production, health care, veterinary and regulatory costs. The methods described in this Thesis for the extraction of mycotoxins from cereal and derivates used conventional techniqu…

Presence of Enniatins and Beauvericin in Romanian Wheat Samples: From Raw Material to Products for Direct Human Consumption

2017

In this study, a total of 244 wheat and wheat-based products collected from Romania were analyzed by liquid chromatography tandem mass spectrometry (LC-MS/MS) in order to evaluate the presence of four enniatins (ENs; i.e., ENA, ENA1, ENB, and ENB1) and beauvericin (BEA). For the wheat samples, the influence of agricultural practices was assessed, whereas the results for the wheat-based products were used to calculate the estimated daily intake of emerging mycotoxins through wheat consumption for the Romanian population. ENB presented the highest incidence (41% in wheat and 32% in wheat-based products), with its maximum levels of 815 μg kg−1 and 170 μg kg−1 in wheat and wheat-based products,…