Physicochemical characterization of natural sand from the south-east of Morocco and its potential use as sorbent for dyes removal

2019 ◽  
Vol 146 ◽  
pp. 362-372
Author(s):  
A. Elhalil ◽  
M. Barour ◽  
H. Tounsadi ◽  
R. Elmoubarki ◽  
E.M. Lemdek ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
The South ◽  
Natural Sand ◽  
Potential Use ◽  
Dyes Removal

scholarly journals Development of cookies from agroindustrial by-products

2018 ◽  
Vol 40 (2) ◽  
Author(s):  
Kricelle Mosquera Deamici ◽  
Lucas Carvalho de Oliveira ◽  
Gabriela Silveira da Rosa ◽  
Elessandra da Rosa Zavareze ◽  
Elizangela Gonçalves de Oliveira
Keyword(s):  
Rice Bran ◽  
Physicochemical Characterization ◽  
Point Of View ◽  
Solubility In Water ◽  
Parboiled Rice ◽  
Grape Marc ◽  
Milling Operations ◽  
By Products ◽  
Potential Use

Abstract The aim of this study was to evaluate the potential use of dry grape marc obtained of drying and milling operations with parboiled rice bran for cookies production. By-products were characterized with respect to moisture content, proteins, lipids, carbohydrates, fiber, and ashes, besides the analysis of absorption index, solubility in water and acidity. The proposed formulations were prepared by varying the amount of by-products to replace wheat flour. Elaborate cookies were subjected to microbiological and sensory analysis. The formulation with greater acceptance contained 5% of flour grape marc and 10% of parboiled rice bran. The physicochemical characterization of the cookies with greater acceptance was highlighted by the protein and fiber that presented 5.15% and 28.42%, respectively. The result obtained from this study shows a suitable product for consumption for microbiological as well as nutritional point of view.

scholarly journals Comprehensive mineralogical and physicochemical characterization of recent sapropels from Romanian saline lakes for potential use in pelotherapy

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Andreea Baricz ◽  
Erika A. Levei ◽  
Marin Șenilă ◽  
Simona Cîntă Pînzaru ◽  
Mihaela Aluaş ◽  
...  
Keyword(s):  
Organic Matter ◽  
Saline Lakes ◽  
Physicochemical Characterization ◽  
Exchange Capacity ◽  
Potentially Toxic Elements ◽  
Maturation Stage ◽  
Therapeutic Uses ◽  
Low Concentrations ◽  
Potential Use

AbstractIn this study we aimed to compare the mineralogical, thermal, physicochemical, and biological characteristics of recent organic carbon-rich sediments (‘sapropels’) from three geographically distant Romanian lakes (Tekirghiol and Amara, SE Romania, and Ursu, Central Romania) with distinct hydrogeochemical origins, presently used for pelotherapy. The investigated lakes were classified as inland brackish Na-Cl-sulfated type (Amara), coastal moderately saline and inland hypersaline Na-Cl types (Tekirghiol and Ursu, respectively). The settled organic matter is largely composed of photosynthetic pigments derived from autochthonous phytoplankton. Kerogen was identified in the sapropel of coastal Tekirghiol Lake suggesting its incipient maturation stage. The mineral composition was fairly similar in all sapropels and mainly consisted of quartz, calcite, and aragonite. Smectite, illite, mixed layer smectite/illite appeared as major clay components. Potentially toxic elements were found in low concentrations. The physical properties (i.e., specific heat, thermal conductivity and retentivity) and cation exchange capacity are comparable to other peloids used for therapy. This study is the first comprehensive multi-approached investigation of the geochemical nature of recent sapropels in Romanian saline lakes and thus contributes to expanding our knowledge on the origin and physicochemical qualities of organic matter-rich peloids with therapeutic uses.

Optimization and Physicochemical Characterization of Chitosan and Chitosan Nanoparticles Extracted from the Crayfish Procambarus clarkii Wastes

2019 ◽  
Vol 38 (2) ◽  
pp. 385 ◽  
Author(s):  
Marwa M. El-Naggar ◽  
Wael S. I. Abou-Elmagd ◽  
Ashraf Suloma ◽  
Hamza A. El-Shabaka ◽  
Magdy T. Khalil ◽  
...  
Keyword(s):  
Procambarus Clarkii ◽  
Chitosan Nanoparticles ◽  
Physicochemical Characterization

Physicochemical Characterization of Solid Dispersions of Cefdinir with PVP K-30 and PEG 4000

2010 ◽  
Vol 3 (2) ◽  
pp. 948-956
Author(s):  
Kumar P ◽  
S Kumar ◽  
A Kumar ◽  
M Chander
Keyword(s):  
Solid Dispersions ◽  
Physicochemical Characterization ◽  
Drug Carriers ◽  
Dissolution Properties ◽  
Rate Of Dissolution ◽  
Peg 4000 ◽  
Release Studies ◽  
Crystalline Nature ◽  
Physical Mixtures

The purpose of this study was to prepare and characterize solid dispersions of the antibacterial agent Cefdinir with PEG 4000 and PVP K-30 with a view to improve its dissolution properties. Investigations of the properties of the dispersions were performed using release studies, X-ray powder diffraction (XRD) and Fourier transform infrared (FTIR). The results obtained showed that the rate of dissolution of Cefdinir was considerably improved when formulated in solid dispersions with PVP K-30 and PEG 4000 as compared with pure drug and physical mixtures. The results from XRD studies showed the transition of crystalline nature of drug to amorphous form, while FTIR studies demonstrated the absence of drug-carriers interaction.

Purification and Physicochemical Characterization of a Trypsin Inhibitor from Cassia absus Linn

2013 ◽  
Vol 21 (2) ◽  
pp. 108-114 ◽  
Author(s):  
Girijesh Patel ◽  
Amit Gupta ◽  
Akshita Gupta ◽  
Manisha Mishra ◽  
Pradhyumna Singh ◽  
...  
Keyword(s):  
Trypsin Inhibitor ◽  
Physicochemical Characterization
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