Physicochemical Properties of Kakamut Gum (&lt;i&gt;Acacia polyacantha&lt;/i&gt;) and Hashab Gum (&lt;i&gt;Acacia senegal&lt;/i&gt;): A Comparative Analysis

Physicochemical properties of commercial medical CO2 sorbents Amsorb Plus, Draeger 800, Draeger free, Loflosorb, Sodasorb, Sofnolime, Spherasorb, Ventisorb, as well as of the Russian adsorbent HPI were studied to determine the chemical compositions, textural characteristics, effective protection time with respect to CO2; crushing and attrition resistance of granular sorbents were measured using the SHELL SMS-1471 and ASTM D 4058 96 procedures. The best performance (a high CO2 capacitance, strength) was observed with Draeger 800. The obtained data on operating properties of commercial sorbents and recommendations can be useful for medicine, rescue works, as well as for scientific and production activities when cleaning air mixtures from carbon dioxide is necessary.

Download Full-text

Comparative Analysis of Physicochemical Properties of Dimer Acids from Jathropha Curcas and Thevetia Nerrifolia Seed Oils

World Scientific Research ◽

10.20448/journal.510/2016.3.1/510.1.38.41 ◽

2016 ◽

Vol 3 (1) ◽

pp. 38-41

Author(s):

B. A. Ikyenge ◽

◽

K. A. Bello ◽

H. M. Adamu ◽

A. Jauro ◽

...

Keyword(s):

Comparative Analysis ◽

Physicochemical Properties ◽

Seed Oils ◽

Dimer Acids

Download Full-text

Comparative Analysis of Selected Physicochemical Properties of Pozzolan Portland and MTA-Based Cements

International Scholarly Research Notices ◽

10.1155/2014/831908 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7

Author(s):

Maura Cristiane Gonçales Orçati Dorileo ◽

Ricardo Dalla Villa ◽

Orlando Aguirre Guedes ◽

Andreza Maria Fábio Aranha ◽

Alex Semenoff-Segundo ◽

...

Keyword(s):

Electrical Conductivity ◽

Comparative Analysis ◽

Portland Cement ◽

Physicochemical Properties ◽

American National Standard Institute ◽

Statistical Analyses ◽

National Standard ◽

Distilled Water ◽

Mean Values ◽

Level Of Significance

Physicochemical properties of pozzolan Portland cement were compared to ProRoot MTA and MTA BIO. To test the pH, the samples were immersed in distilled water for different periods of time. After the pH analysis, the sample was retained in the plastic recipient, and the electrical conductivity of the solution was measured. The solubility and radiopacity properties were evaluated according to specification 57 of the American National Standard Institute/American Dental Association (ANSI/ADA). The statistical analyses were performed using ANOVA and Tukey’s test at a 5% level of significance. Pozzolan Portland cement exhibited pH and electrical conductivity mean values similar to those of the MTA-based cements. The solubilities of all tested materials were in accordance with the ANSI/ADA standards. Only the MTA-based cements met the ANSI/ADA recommendations for radiopacity. It might be concluded that the pH and electrical conductivity of pozzolan Portland cement are similar to and comparable to those of MTA-based cements.

Download Full-text

Effect of gum arabic (Acacia senegal) addition on physicochemical properties and sensory acceptability of roselle juice

Food Research ◽

10.26656/fr.2017.4(2).293 ◽

2019 ◽

Vol 4 (2) ◽

pp. 449-458

Author(s):

T.N.N. Tuan Azlan ◽

Yusnita Hamzah ◽

H.A. Mohd Abd Majid

Keyword(s):

Physicochemical Properties ◽

Gum Arabic ◽

Soluble Solids ◽

Anthocyanin Content ◽

Acacia Senegal ◽

Total Anthocyanin ◽

Total Soluble Solids ◽

Sensory Acceptability ◽

Total Anthocyanin Content ◽

Significant Difference

Roselle has a brilliant red colour, high in vitamins and has a unique flavour that makes it suitable for juice production. Meanwhile, Gum Arabic (GA) is the edible dried exudate attained from stem and branch of Acacia senegal that contains high dietary fibre which can serve as prebiotic. Therefore, the application of GA into roselle juice might promote health benefits to consumers. GA is categorised as hydrocolloid and its application might affect important properties and acceptability towards the product. Hence, this study was conducted to investigate the effect of different concentrations of Gum Arabic (GA, Acacia senegal) addition (0%, 2%, 4% and 6%) on physicochemical properties and sensory acceptability of roselle juice. Increasing the GA concentration resulted in increased pH, total soluble solids, viscosity and turbidity values of roselle juice (p<0.05). However, the addition of GA had reduced the total anthocyanin content in roselle juice. For colour analysis, the addition of GA significantly (p<0.05) reduced the redness (a*) and yellowness (b*) properties. There was no significant difference in all attributes for sensory evaluation except for colour attribute. In conclusion, the addition of GA up to 6% into roselle juice caused an increase in pH, total soluble solids, viscosity and turbidity, but no effect to the sensory attributes.

Download Full-text