Liquid pig feed (LPF) and skimmed milk (SM) acidified to pH 4 with lactic or hydrochloric acid (HCl) were treated with 0, 2.5, 5. 12.5, 25 or 50 ppm Cu and challenged with 10 c.f.u ml Salmonella Typhimurium DT104:30. The decimal reduction time (D) was determined by enumeration of viable Salmonellae at appropriate time intervals after inoculation. Additional SM samples, acidified to pH 2.5 with ...

Trace element compositions of sphalerite and chalcopyrite have been investigated for four arc-hosted Cretaceous VMS deposits (María Teresa, Perubar, Palma in Peru, Cerro de Maimón the Dominican Republic) using laser ablation inductively-coupled plasma mass spectrometry. In sphalerite, Fe, Mn, Cd, Hg, Ag, Sb, Se, In, Ge, Ga are lattice-bound, whereas Sn, Tl, Bi, Pb occur at least partly as miner...

O estudo foi realizado nos manguezais dos estuários Rios Jacuípe e Capivara Pequeno, município de Camaçari, Litoral Norte do Estado da Bahia - Brasil, sob influência resíduos industriais, emanados Empresa Proteção Ambiental Pólo Petroquímico (CETREL). manguezal Canal Itaparica, Baía Todos os Santos, supostamente sem efeitos poluentes, tomado como área controle. Foram coletadas folhas Rhizophora...

Rhizomes of Canna indica Linn. has its own great important medicinal value, so thenutritive value of the rhizome is determined. Rhizome of Canna indicais found rich in carbohydrate and have enough crude fiber (67.99 and 12.50% respectively) ; nutritive value being 319.15 Cal /100 g.Rhizome is rich in Potassium (24405 ppm) and sufficient in sodium, calcium and magnesium (7500, 1345 and 1610 ppmr...

ZnO/graphene (ZnO-G) hybrid composites are prepared via hydrothermal synthesis with graphite, N-methyl-pyrrolidone (NMP), and Zn(NO₃)₂·6H₂O as the precursors. The characterizations, including X-ray diffraction (XRD), thermogravimetric analyses (TGA), Raman spectroscopy, and transmission electron microscopy (TEM) indicate the formation of ZnO-G. Gas sensors were fabricated with ZnO-G composites ...

Introduction: Nowadays, many people use medicinal plants to manage diseases; therefore, detailed knowledge of the type and level of elements present in these plants is of prominent importance.The present study aimed to determine the weight fraction of 12 elements in the five most common medicinal plants in Iran. The names of these plants are caraway (Carum carvi), savo...

BACKGROUND Herbal products of questionable quality create major concern for human population since their production is often not controlled and regulated. MATERIAL AND METHODS Antihypertensive herbal products were subjected to pharmaceutical quality control parameters specified in Pharmacopoeias, toxic quantification of heavy metals by flame atomic absorption spectrophotometer and adulterated...

Abstract Availability of micronutrients is one the important factors for successful and economic cultivation vineyards. The objectives this study are to evaluate spatial distribution soil (Cu, Fe, Mn, Zn, B) their suitability vineyard in Jabal Al Arab Syria. To achieve research objectives, samples were collected randomly from farms which cover area. Following this, analyses conducted determine ...

The Red Dog Zn-Pb deposits are hosted in organic-rich mudstone and shale of the Mississippian Kuna Formation. A complex mineralization history is defined by four sphalerite types or stages: (1) early brown sphalerite, (2) yellow-brown sphalerite, (3) red-brown sphalerite, and (4) late tan sphalerite. Stages 2 and 3 constitute the main ore-forming event and are volumetrically the most important....

This short contribution is an extended abstract which summarizes a recent discovery we have made regarding the nucleation of fcc grains during the solidification of metallic alloys. While trying to analyze the effects of minute solute additions to the directional solidification of aluminum alloys, we observe that 200 ppm of Cr added to Al20 wt.%Zn alloys induced a change of the primary trunk gr...