Search results for "Aliment"
showing 10 items of 1752 documents
Determination of deoxynivalenol in wheat-based snacks by gas chromatography-triple quadrupole tandem mass spectrometry
2013
Deoxynivalenol (DON) is the most frequently detected mycotoxin in cereal and cereal-based products, and a continuous monitoring of this toxin in foodstuffs is highly desirable. In this sense,a QuEChERS based extraction and gas chromatography-tandem mass spectrometry detection is proposed to determine DON in an appetizer largely consumed, the wheat-based snacks. In this study, a total of 40 samples were analyzed. The samples were divided into two groups based on the composition. Extraction was carried out with acetonitrile followed by a dispersive solid phase extraction and analyzed for DON content by gas chromatography-tandem mass spectrometry (GC-QqQ-MS/MS) method. The overall occurrence o…
Variación de compuestos bioactivos y con capacidad antioxidante en una bebida de zumo y leche al aplicar tecnologías no térmicas de conservación
2009
En los últimos años han aparecido en el mercado nuevas bebidas, combinación de zumos de fruta y leche con una buena aceptación por parte de los consumidores. Tradicionalmente, los alimentos líquidos como zumos de fruta y/o vegetales, así como la leche han sido conservados mediante técnicas por calor como la pasterización o esterilización. Sin embargo, los procesos térmicos de conservación dañan tanto a microorganismos y enzimas, como a nutrientes y otros compuestos químicos responsables de la calidad nutricional y organoléptica de los alimentos. En la última década, investigadores y tecnólogos, demandado por la industria alimentaria, han estudiado la aplicación de tecnologías de conservació…
Suspensión de la Obligación de prestar alimentos al menor de edad: mecanismos de control, análisis jurisprudencial y propuestas
2022
El propósito del presente trabajo reside en el análisis jurisprudencial de la declaración judicial de la suspensión de la obligación de prestar alimentos al menor de edad. Introduciendo el mandato previsto en el art. 39 CE, y la legislación, que insta al Estado, a garantizar el pago de los meritados alimentos, proponiendo mecanismos de control y evitando el permanente seguimiento al alimentante.
Amaranthus grain as a new ingredient in diets for dairy cows: productive, qualitative, and in vitro fermentation traits
2022
Background: In recent decades, grain amaranths have attracted attention due to their valuable combination of nutritional traits, with higher protein and oil content than conventional cereals. Before they can be proposed as an unconventional ingredient in animal feed, many aspects still need to be investigated from field production to nutritive value. The present research aimed to study the agronomic traits, proximate composition, and digestibility/degradability, fatty acid profile, antioxidant activity, and total phenolic content of two grain amaranth species, Amaranthus cruentus and Amaranthus hypochondriacus (for a total of six accessions), grown in a Mediterranean environment. Results: B…
Comunità resilienti e auto sostenibili. Le politiche urbane dell’agroalimentare in Andalusia
2014
Negli ultimi anni si sono moltiplicati i dibattiti riguardanti la sovranità alimentare. Il sistema agroalimentare, complessa struttura di relazioni ecologiche, sociali ed economiche, ricopre, infatti, un ruolo importante sia per quanto riguarda la forma del territorio, sia per il sostentamento della popolazione. In Andalusia, la maggiore area agricola produttiva spagnola ed europea, si stanno plasmando differenti realtà per lo sviluppo di un sistema agroalimentare alternativo a quello industriale. Questo nuovo sistema, che in questa Comunidad conta già 43 esperienze supportate da produttori, cittadini, amministrazioni e entità scientifiche, oltre ad essere rispettoso dell’ambiente, è capace…
Determination of trichothecenes and zearalenones in grain cereal, flour and bread by liquid chromatography tandem mass spectrometry
2012
Although analytical methods have been already reported for legislated mycotoxins as trichothecenes and zearalenone (ZON) separately, we describe the optimization of a simple and rapid multimycotoxin method for the determination of a total of 12 mycotoxins simultaneously, nine trichothecenes (NIV, DON, FUS-X, DAS, 15-AcDON, 3-AcDON, NEO, HT-2, T-2 T2), and zearalenone and its metabolites (ZON, a-ZOL, b-ZOL), of different origin (wheat, oat, barley and spelt) and in three different products where these substance can be present (grain, flour and bread) reach the food chain and cause toxic effect either in humans or animals. The extraction procedure was based on a mixture of acetonitrile/water …
An odor timer in milk? Synchrony in the odor of milk effluvium and neonatal chemosensation in the mouse.
2012
International audience; Mammalian newborns exhibit avid responsiveness to odor compounds emanating from conspecific milk. Milk is however developmentally heterogeneous in composition as a function of both evolved constraints and offspring demand. The present study aimed to verify whether milk odor attractivity for neonates is equally distributed along lactation in Mus musculus (Balb-c strain). Therefore, we exposed pups varying in age to milk samples collected from females in different lactational stages. The pups were assayed at postnatal days 2 (P2), 6 (P6) and 15 (P15) in a series of paired-choice tests opposing either murine milk and a blank (water), or two samples of milk collected in …
Changes in Body Composition in Anorexia Nervosa : Predictors of Recovery and Treatment Outcome
2015
The restoration of body composition (BC) parameters is considered to be one of the most important goals in the treatment of patients with anorexia nervosa (AN). However, little is known about differences between AN diagnostic subtypes [restricting (AN-R) and binge/purging (AN-BP)] and weekly changes in BC during refeeding treatment. Therefore, the main objectives of our study were twofold: 1) to assess the changes in BC throughout nutritional treatment in an AN sample and 2) to analyze predictors of BC changes during treatment, as well as predictors of treatment outcome. The whole sample comprised 261 participants [118 adult females with AN (70 AN-R vs. 48 AN-BP), and 143 healthy controls].…
Modelagem da cinética de secagem de discos de maçã e abobrinha impregnadas a vácuo com antocianinas
2019
ABSTRACT: The aim of this research was to study the drying kinetics of apple and zucchini slices enriched with anthocyanins and to evaluate the influence of drying temperature on the anthocyanin content of apple and zucchini snacks. Apple (Granny Smith) and zucchini (Cucurbita pepo) slices were enriched with anthocyanins by vacuum impregnation with blueberry juice. Then, slices were dehydrated at 40, 50 and 60 ºC with 1.0 m/s air flow. Dehydrated samples were referred to as anthocyanin enriched snacks. Diffusion coefficient values improved by increasing the drying temperature, within the 2.81×10-10 to 5.78×10-10 m2/s range for apple slices and 2.02×10-10 to 3.99×10-10 m2/s for zucchini slic…
Investigation on the influence of spray-drying technology on the quality of Sicilian Nero d’Avola wines
2018
The purpose of the present work was to find a correlation between microencapsulation technology applied to wines and the resulting quality of the wine itself in terms of volatile composition and phenolic profile. To this aim, samples of Nero d'Avola wines produced in Sicily (Italy) were investigated in order to: i) elucidate the aromatic composition by means of HSâSPME coupled with GCâMS; ii) assess the polyphenolic content by UHPLC mass spectrometry; iii) compare the results obtained from both the screenings with those relative to the same wines that had previously been subjected to spray-drying. The results showed a marked reductionThe results here obtained evidenced a marked reductio…