Determination of inorganic constituents and physicochemical characterization of functional flour samples

2017 ◽  
Vol 132 ◽  
pp. 112-118 ◽  
Author(s):  
Anna Luiza B. Brito ◽  
Aline F. Oliveira ◽  
Ana Rita A. Nogueira ◽  
Amália G.G. Pessoa ◽  
Liliana F.B.L. Pontes
Keyword(s):  
Physicochemical Characterization ◽  
Inorganic Constituents

scholarly journals Chemical and Physicochemical Characterization of Faveleria (Cnidoscolus phyllacanthus) Oil - It Use of Determination of Enzymatic Activity of Extract of Fungi rhizopus sp.

2020 ◽  
Vol 12 (5) ◽  
pp. 1319-1333
Author(s):  
Carla Verônica Rodarte de Moura ◽  
Haroldo Luis Sousa Neres ◽  
Edmilson Miranda de Moura ◽  
Maria Christina Sanches Muratori ◽  
Tiago Linus Silva Coelho ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Physicochemical Characterization ◽  
It Use ◽  
Rhizopus Sp

Physicochemical Characterization of Canola Oil/Water Nano‐emulsions Obtained by Determination of Required HLB Number and Emulsion Phase Inversion Methods

2006 ◽  
Vol 27 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Jacqueline Moreira de Morais ◽  
Orlando David Henrique dos Santos ◽  
Tatiani Delicato ◽  
Ricardo Azzini Gonçalves ◽  
Pedro Alves da Rocha‐Filho
Keyword(s):  
Canola Oil ◽  
Phase Inversion ◽  
Physicochemical Characterization ◽  
Emulsion Phase ◽  
Inversion Methods ◽  
Oil Water

scholarly journals Identification and Physicochemical Characterization of a New Allergen from Ascaris lumbricoides

2020 ◽  
Vol 21 (24) ◽  
pp. 9761
Author(s):  
Velky Ahumada ◽  
María Manotas ◽  
Josefina Zakzuk ◽  
Lorenz Aglas ◽  
Sandra Coronado ◽  
...  
Keyword(s):  
Ascaris Lumbricoides ◽  
Immunoglobulin E ◽  
Physicochemical Characterization ◽  
Allergic Diseases ◽  
Specific Ige ◽  
Allergenic Activity ◽  
The Impact ◽  
Helical Folding

To analyze the impact of Ascaris lumbricoides infection on the pathogenesis and diagnosis of allergic diseases, new allergens should be identified. We report the identification of a new Ascaris lumbricoides allergen, Asc l 5. The aim of this study was to evaluate the physicochemical and immunological features of the Asc l 5 allergen. We constructed an A. lumbricoides cDNA library and Asc l 5 was identified by immunoscreening. After purification, rAsc l 5 was physicochemically characterized. Evaluation of its allergenic activity included determination of Immunoglobulin E (IgE) binding frequency (in two populations: 254 children and 298 all-age subjects), CD203c based-basophil activation tests (BAT) and a passive cutaneous anaphylaxis (PCA) mouse model. We found by amino acid sequence analysis that Asc l 5 belongs to the SXP/RAL-2 protein family of nematodes. rAsc l 5 is a monomeric protein with an alpha-helical folding. IgE sensitization to rAsc l 5 was around 52% in general population; positive BAT rate was 60%. rAsc l 5 induced specific IgE production in mice and a positive PCA reaction. These results show that Asc l 5 has structural and immunological characteristics to be considered as a new allergen from A. lumbricoides.

Determination of the Stability of Asphaltenes Through Physicochemical Characterization of Asphaltenes

2016 ◽  
Author(s):  
Andreas Prakoso ◽  
Abhishek Punase ◽  
Kristina Klock ◽  
Estrella Rogel ◽  
Cesar Ovalles ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
The Stability

scholarly journals Structure-Retention Relationships and Physicochemical Characterization of Solutes in Thin-Layer Chromatography

1998 ◽  
Vol 81 (6) ◽  
pp. 1105-1108 ◽  
Author(s):  
Tibor Cserháti ◽  
Esther Forgács
Keyword(s):  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Physicochemical Characterization ◽  
Quantitative Relationship ◽  
Experimental Methods ◽  
Reversed Phase ◽  
Structure Retention ◽  
Layer Chromatography

Abstract This review enumerates and critically evaluates experimental methods and calculation procedures used to elucidate the molecular basis of thin-layer chromatography (TLC) separations in both adsorption and reversed-phase modes. It addresses the quantitative relationship between molecular structure and retention and the determination of the solute physicochemical parameters by TLC.

scholarly journals Systematic analysis of trimazolin hydrochloride as adrenergic vasoconstrictor

2008 ◽  
Vol 62 (2) ◽  
pp. 69-77 ◽  
Author(s):  
Goran Nikolic ◽  
Ivana Savic ◽  
Vladimir Bankovic
Keyword(s):  
Physicochemical Characterization ◽  
Second Phase ◽  
Spectroscopic Methods ◽  
Systematic Analysis ◽  
Rp Hplc ◽  
Patent Literature ◽  
Degree Of Certainty ◽  
Pharmacologically Active

Trimazolin-hydrochloride, which is used as a pharmaceutically active component (adrenergic vasoconstrictor) for the production of decongestive preparations, was investigated in this paper by performing systematic analysis. In domestic and foreign pharmacopoeias, as well as in scientific and patent literature, there are no data on trimazolin and the methods of its investigation. Systematic analysis involves two investigation phases. A complete physicochemical characterization of the synthesized substance was done by previous investigation. In the second phase, a chemical structure of the synthesized pharmacologically active substance was confirmed to a certain degree of certainty by using the absorption spectroscopic methods (FTIR, UV-VIS, 1H-NMR). The spectroscopic methods used proved to be successful at identifying and investigating the purity of trimazolin hydrochloride. Liquid (RP-HPLC) chromatography was used for the analysis of trimazolin hydrochloride in the nasal preparation (Adrianol). The method of titrimetric analysis was developed with the aim of quantitative determination of trimazolin hydrochloride in decongestive preparations.

scholarly journals Physicochemical and isotopical characterization of groundwater in the basin of Guelma, North-East of Algeria

2019 ◽  
Vol 42 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Kaddour Benmarce ◽  
Kamel Khanchoul
Keyword(s):  
Physicochemical Characterization ◽  
High Water ◽  
Total Alkalinity ◽  
North East ◽  
Groundwater Aquifers ◽  
Calcium Bicarbonate ◽  
Carbonate Formations

Abstract Water quality is an important criterion for evaluating the suitability of water for drinking and domestic purpose. The main objective of this study was to investigate the physicochemical characterization of groundwater for drinking water consumption. Ten captured sources were selected from three aquifers including the Guelma Mio-Plio-Quaternary alluvial basin; the Senonian Heliopolis Neritic limestone aquifer, and the Eocene limestones of Ras El Agba-Sellaoua aquifer. The analyses concerned the periods of high water in May 2017 and low water in August 2017. Twelve parameters were determined for the water samples: pH, T (°C), EC, Ca2+, Mg2+, Na+, K+, Cl−, HCO3−, SO42−, NO3−, TH (hydrotimetric degree), TAT (total alkalinity titration). The interpretation of the various analytical results allowed the determination of the chemical facies and the classification of the groundwater aquifers as follows: (i) in the alluvial layer, the gypsiferous marl substratum and the clays of the three terraces (high, medium and low) have given the water a chlorinated calcium chemical facies in the east part of the study area and travertines feeding partly alluvial layer, and have given a bicarbonated calcium water facies in the west, (ii) in the Senonian of Heliopolis limestone and Eocene carbonate formations of Ras El Agba-Sellaoua, the chemical facies are calcium bicarbonate. Water isotopes (δ18O and δD) helped to determine the origin of groundwater. Overall, the groundwater in the area is hard and has significant to excessive mineralization. It is progressively degraded in the direction of flow, especially in the Guelma alluvial aquifer.

scholarly journals Sustainable Use of Tepetate Composite in Earthen Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
T. López-Lara ◽  
Juan Bosco Hernandez-Zaragoza ◽  
Jaime Horta ◽  
Eduardo Rojas Gonzalez ◽  
Carlos Lopez-Cajun ◽  
...  
Keyword(s):  
Sustainable Use ◽  
Physicochemical Characterization ◽  
Clay Content ◽  
Natural Material ◽  
Strength Increase ◽  
X Ray Diffraction ◽  
Local Materials ◽  
New Phase

One of the best indicators for construction sustainability is the use of earthy local materials which are completely recyclables and savers of energy during their life cycle. Tepetate is an underestimated earth-natural material, vast and economic, used only in a compacted form in backfills for layers of low resistance in pavements and platforms of buildings. This volcanic soil, named in different ways in several countries, is found in the central region of Mexico. Its resistance as compacted material is very low, of the order of 0.08 MPa. In this work, an improved sustainable-tepetate composite, using CaOH, is presented. This research includes the determination of mechanical properties as well as the physicochemical characterization of the sustainable-tepetate composite behavior. It can be concluded that the strength of the proposed composite increases significantly, immediately after treatment and with time. X-Ray Diffraction shows that all the mineralogical phases prevail in the natural tepetate and only a new phase appeared (calcite), which increases with time. This and the reaction of CaOH with clay content are very likely associated with the continuous strength increase of the composite.

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