Search results for "Cereal"
showing 10 items of 82 documents
Quantifying cereal-reaping microwear on flint tools : an experimental approach
2016
International audience; From the earliest Neolithic in the Near East to the last Chalcolithic cultures in Western Europe, certain flint tools have been used as sickles to harvest cereals. Such harvesting tools can be identified through use-wear analyses, because cutting herbaceous plants produces specific wear-traces on the working edge of flint blades. The aim of this work is to explore harvesting-driven microwear variability and, more particularly, intensity of use as a governing factor. To achieve this objective, an experiment was designed consisting in the production of flint replicas to be used as harvesting tools, in various controlled conditions. A simple, cost-effective method of qu…
Valutazione bio-agronomica e qualitativa di sistemi cerealicoli in ambiente mediterraneo.
2011
Sterol oxidation in ready-to-eat infant foods during storage.
2008
The effect of storage on sterol oxidation of ready-to-eat infant foods was evaluated. Two different flavor (honey -LH- or fruits-LF-) liquid infant foods, prepared with milk and cereals, were stored for 0, 2, 4, 7 and 9 months, at 25ºC. Sterol oxidation products (SOP) were extracted by cold saponification, purified by silica solid-phase and analyzed by gas chromatography (GC) and GC-mass spectrometry. -sitosterol was the most representative sterol, followed by cholesterol and campesterol. No significant differences in the total and single SOP content (0.8-1 mg/kg of product) were observed with respect to storage time and type of sample; the main SOP found was 7-ketositosterol (< …
Emerging fungi and mycotoxins in crops in the framework of climate change. Design of strategies for their prevention and control
2015
Las micotoxinas son metabolitos secundarios fúngicos que se encuentran frecuentemente como contaminantes naturales en diversos alimentos habituales en la dieta humana y animal. Producen micotoxicosis agudas y crónicas que afectan principalmente al hígado, riñón y sistemas inmunológico y reproductor. Además, algunas de ellas como las aflatoxinas (AFLs) han sido reconocidas por la “International Agency for Research on Cancer” (IARC) como los compuestos naturales con mayor potencial teratogénico y cancerígeno para humanos que se conocen, a ellas le sigue la ocratoxina A (OTA), fumonisinas (FBs), deoxinivalenol (DON), zearalenona (ZEA), patulina (PAT) y citrinina (CIT). La IARC las ha clasifica…
Progetto "Innovazione della Cerealicoltura in Sicilia"; un sistema informatizzato a supporto delle scelte colturali delle aziende cerealicole sicilia…
2013
Crop type and altitude are the main drivers of species composition of arable weed vegetation in Tajikistan
2015
Summary The influence of broad-scale environmental factors on the species composition of segetal weed communities in Tajikistan was investigated. The research was conducted throughout the country, analysing plots of root crops as well as cereals from all phytogeographical regions of Tajikistan, with the exception of the eastern Pamir. The study was based on 440 phytosociological relevees sampled between 2009 and 2013 and analysed using direct and indirect ordinations. A set of environmental variables was obtained for each plot: altitude, mean annual precipitation, mean annual temperature, pH, crop type, longitude, latitude and date of sampling (seasonality). Crop type was the major factor d…
"Messicoles" : Conservation des plantes messicoles dans les parcelles cultivées : caractérisation des systèmes de cultures favorables, rôles fonction…
2013
Relations entre sociétés et environnement en Petite Seine du Mésolithique à la fin du Moyen Âge : nouvelles problématiques et résultats récents d’arc…
2021
Actes du colloque Arkéaube; International audience; This jointly authored paper encompasses several contributions which highlight new issues in environmental archaeology and incorporate palaeo-environmental data from preventiveexcavations. More specifically, it broaches three questions:-The evolution of the environment from the Late Glacial to the present day is analysed using faunal remains (malacofaunae—molluscs, etc.) and botanicalremains (pine trunks) preserved in the alluvial deposits of the river Seine;-Riverside occupations based on reconstructions of the hydrography and hydrographic functioning of the channels documented in the Pont-sur-Seine sector and in Bassée;-The marshes assume…
L'abastiment municipal de cereals i carns a la vila d'Alzira i el seu terme (1370-1415): una contribució a l'estudi de les relacions ciutat-camp a la…
2017
L’abastiment municipal de cereals i carns a la vila d’Alzira i el seu terme (1370-1415): una contribució a l’estudi de les relacions ciutat-camp a la Ribera del Xúquer Salvador Vercher Lletí L’abastiment alimentari de les ciutats medievals és un tema que, en l’àmbit de la Mediterrània occidental, compta amb una certa tradició historiogràfica i una literatura que podem qualificar d’extensa, però presenta diverses asimetries en l’àmbit de la Corona d’Aragó. Primer de tot, perquè els nuclis estudiats fins ara corresponen a grans ciutats i, només excepcionalment, a viles-mercat de diferent rang. I en darrer lloc, i no pas menys important, perquè les recerques dutes a terme s’han centrat de mane…
Piogge interminabili rese in forte calo
2013
Il clima avverso è stato l'elemento chiave dell'annata, con un decremento delle produzioni fino al 30%. E il colpo di grazia potrebbe arrivare dalle micotossine.