Physicochemical characterization of pod flour of Moringa oleifera produced at different temperatures

AbstractThe impact of gold mining activities on the Lom River in Wakaso (Adamawa Cameroon) and the potential of Moringa Oleifera seeds for the removal of pollutants from wastewater is evaluated on this paper. Water samples were collected for physicochemical (hydrogen potential, electrical conductivity, turbidity and suspended solids) and chemical (major ions and heavy metals) analyses. To evaluate the effect of mining activities on waters and sediments, a combination of multivariate statistical analysis (MSA) and methods to assess the sediment quality was used. The restorative effect of Moringa oleifera seeds was studied with the determination of the maximum removal efficiencies and the maximum adsorption capacities. The results of the physicochemical characterization of waters showed that these waters were slightly acidic to slightly basic (6.12–8.12), weakly conductive (185.8–584.1 μS cm−1), turbid (345–801NTU) and had high content of suspended solids (167–700 mg L−1). The average concentrations of studied heavy metals (Ni, Cd, Fe, Mn, As and Hg) in waters exceeded the limits recommended by the World Health Organization (WHO) standards. Physicochemical characterization of sediments revealed that they were acidic to neutral (5.95–6.80) and organic matter (OM) content ranged from 11.11 to 15.78%. The concentrations of studied trace metals (Ni, Cd, Fe, Hg, Mn and As) in sediments were below the limits recommended by the WHO except for Cd and Hg. The study of the capacity of Moringa oleifera seeds to remove pollutants in waters showed that 54% of the electrical conductivity, 80% of turbidity and 94% of suspended solids were reduced. The maximum removal efficiency of 91.66, 92.30 and 24.48 and the maximum adsorption capacity of 2.4, 2.6 and 16.6 mg g−1were observed for Cd (II), Hg (II) and Fe (II), respectively. Thus, the Moringa oleifera seeds which are locally available natural bio-adsorbent exhibit attractive property to treat wastewater.

Download Full-text

Drying of sugarcane in foam mat and physicochemical characterization of the product

Brazilian Journal of Food Research ◽

10.3895/rebrapa.v7n2.3500 ◽

2016 ◽

Vol 7 (2) ◽

pp. 16

Author(s):

Gutto Monzelle Rios Marques ◽

Rosa Sampaio de Arruda ◽

Arienilmar Araújo Lopes da Silva

Keyword(s):

Calcium Carbonate ◽

Physicochemical Characterization ◽

Empirical Models ◽

Drying Kinetics ◽

Powder Form ◽

Cane Juice ◽

Different Temperatures ◽

Average Water ◽

Alternative Techniques

The drying foam mat is one of the alternative techniques to drying of liquid foods. The objective of the research was to study the drying kinetics for foam mat sugarcane juice and characterize chemical-physical dehydrated product. For foaming was used the combination of additives Emustab®, Super Liga Neutra® and Calcium Carbonate. The drying kinetics was studied at three different temperatures: 50, 60 and 70 °C with curves fitted by non-linear regression to empirical models Page Henderson and Newton. All models showed a good fit to drying, with determination coefficients above 0.99. The dehydrated product had an average moisture of 3.23% and average water activity of 0.360. The solubility of the product in flake form was 100% and the solubility of the product in powder form was 90.53%. So, it was technically feasible the dehydrated cane juice production to foam mat drying technique with microbiological and chemical stability and the possibility of rehydrated in 100%.

Download Full-text

Influence of Powdered Moringa oleifera Lam. Almonds Dried at Different Temperatures on the Physico-chemical Quality of the Pond Water

Journal of Engineering Research and Reports ◽

10.9734/jerr/2020/v18i217202 ◽

2020 ◽

pp. 1-11

Author(s):

Yerima Bako Djibo Aboubacar ◽

Guero Yadji

Keyword(s):

Electrical Conductivity ◽

Moringa Oleifera ◽

Chemical Characterization ◽

Pond Water ◽

Physico Chemical ◽

Different Temperatures ◽

The One ◽

Moringa Oleifera Lam

The study focused on the physico-chemical characterization of raw water samples from the Kongou Gorou pond treated with almond powder from Moringa oleifera seeds. The powder which was used for the present study was dried in the oven for one month at the respective temperatures of 25, 40 and 50 ° C and then applied at a dose of 100 mg /L. The parameters studied are pH, iron, copper, electrical conductivity, rate of dissolved substances (TDS), hardness, organic matter; calcium, HCO3-, magnesium, the Complete Alkalimetric Title (TAC). The physico-chemical analysis showed that the waters studied have concentrations below the standards recommended by WHO in 2009. For the dose of 100 mg/L and stored at the respective temperatures of 50, 40 and 25 ° C, it was recorded: a pH close to neutrality, a reduction in iron content of 93.46% at 50 ° C, 90.76% and 90.76%, a decrease in magnesium of 27.21; 27.89 and 39.96%, a decrease in hardness of 37.98; 39.94 and 36.03%; a decrease in the TAC from 1.3 to 1.18; 1.29 and 1.23 ° F and finally a reduction of 9.26; 0.81 and 5.42% bicarbonate. At these respective temperatures of 50, 40 and 25 ° C, the electrical conductivity has increased by 33.63, 33.05 and 32.8µs.cm / L at 2 hours of settling and from 34, 64, 34, 28 and 36, 23 µs. cm / L at 24 hours of settling; an increase in the rate of Dissolved Substances from 15.21 to 16.32; 16.33 and 16.72 mg / L; an increase in the order of 34.48, 26.72 and 13.79% in calcium levels; an increase on the one hand of copper from 0.114 mg/L to 0.903 and 2.39 mg/L respectively at 50 and 40 ° C and on the other hand a total removal of the latter at 25 ° C. The results showed that the use of Moringa oleifera seeds effectively improves the physicochemical quality of the treated water, which not only meets the WHO drinkability standards but also the characteristics of water suitable for drip irrigation.

Download Full-text

Physicochemical Characterization of Nanocomposite Based on Recycled Expanded Polystyrene Reinforced with Clay: Application as Methanol Fuel Cell Membrane

Modern Environmental Science and Engineering ◽

10.15341/mese(2333-2581)/04.02.2016/011 ◽

2016 ◽

Vol 2 (04) ◽

pp. 279-287

Author(s):

Mbarek Stouri ◽

Imene Bekri-Abbes ◽

Ezzeddine Srasra

Keyword(s):

Fuel Cell ◽

Cell Membrane ◽

Physicochemical Characterization ◽

Expanded Polystyrene ◽

Methanol Fuel Cell

Download Full-text

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

Journal of Shellfish Research ◽

10.2983/035.038.0220 ◽

2019 ◽

Vol 38 (2) ◽

pp. 385 ◽

Cited By ~ 3

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

Download Full-text

Morpho-anatomical, histological, phytochemical and physicochemical characterization of Dicliptera bupleuroies Nees

Pakistan Journal of Botany ◽

10.30848/pjb2021-3(23) ◽

2020 ◽

Vol 53 (3) ◽

Author(s):

Shehla Akbar ◽

Saiqa Ishtiaq

Keyword(s):

Physicochemical Characterization

Download Full-text

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

International Journal of Pharmaceutical Sciences and Nanotechnology ◽

10.37285/ijpsn.2010.3.2.8 ◽

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.

Download Full-text