Design and Synthesis of N-acetylated Gemini Surfactants for Use as Leather Preservatives during the Chrome-tanning Process

Posted on March 6, 2021March 6, 2021Categories chemical scienceTags , , ,   Leave a comment on Design and Synthesis of N-acetylated Gemini Surfactants for Use as Leather Preservatives during the Chrome-tanning Process

The antifungal potency and surface properties of a series of N-acetylated non-ionic and cationic gemini surfactants (3a-f) were investigated further. The results show that the cationic sequence has strong surface-active and self-aggregation properties. Critical micelle concentration (CMC), effectiveness of surface tension reduction (CMC), surface excess concentration (I), and area per molecule at the interface (A) were also calculated. The aim of this study was to compare two new antifungal agents, 2-(thiocyanomethylthio)-benzothiazole and 2-(thiocyanomethylthio)-benzothiazole (TCMTB). Two gemini surfactants (3b and 3e) … Continue reading “Design and Synthesis of N-acetylated Gemini Surfactants for Use as Leather Preservatives during the Chrome-tanning Process”

Evaluation of Turmeric Extracts’ Bioactivity as Influenced by Potash Alum Treatment on Different Microbial Species

Posted on October 9, 2020Categories Microbiology and BiotechnologyTags , , , ,   Leave a comment on Evaluation of Turmeric Extracts’ Bioactivity as Influenced by Potash Alum Treatment on Different Microbial Species

Using disc diffusion (DD) and agar well diffusion (AWD) methods, the combination of treatment of crude turmeric rhizome extracts with potash alum against four ( 4) bacterial and five (5) fungal species was investigated. Extracts with or without potash alum (PTA / Alum) were dose-dependently sensitive against all test microbes by inhibiting their growth. The largest inhibition zone (DIZ) diameter was obtained with ethanolic turmeric extract (ETE) and potash alum (ETE+PTA) at a concentration of 0.3 g on Gram-negative bacteria … Continue reading “Evaluation of Turmeric Extracts’ Bioactivity as Influenced by Potash Alum Treatment on Different Microbial Species”

Boron, Aluminium, Iron, Arsenic, Antimony, Silicon, Titanium and Selenium Derivatives of N-(2-Methly) Phenylgycine, Spectral Measurement and Antifungal Activity

Posted on September 17, 2020Categories ChemistryTags , , ,   Leave a comment on Boron, Aluminium, Iron, Arsenic, Antimony, Silicon, Titanium and Selenium Derivatives of N-(2-Methly) Phenylgycine, Spectral Measurement and Antifungal Activity

The boron, aluminium, iron, arsenic, antimony, silicon, titanium and selenium derivatives of N-(2- methyl) phenylglycine have been prepared by the interaction of their corresponding isopropoxide with the latter in different molar ratios in benzene medium. The course of reaction was monitored by estimating the amount of isopropanol liberated in benzene – isopropanol azeotrope in each case. The compounds thus prepared were generally obtained as colored solids and amongst them those containing isopropoxy group(s) was found to be hygroscopic. All these … Continue reading “Boron, Aluminium, Iron, Arsenic, Antimony, Silicon, Titanium and Selenium Derivatives of N-(2-Methly) Phenylgycine, Spectral Measurement and Antifungal Activity”

Antibacterial and Antifungal Efficacy of Gnidia glauca (Fresen) Gilg. and Pothos scandens L.

Posted on August 25, 2020Categories MedicineTags , , , , ,   Leave a comment on Antibacterial and Antifungal Efficacy of Gnidia glauca (Fresen) Gilg. and Pothos scandens L.

Plants produce a diverse range of bioactive molecules, making them rich source of different types of medicines. The medicinal value of plants lies in some chemical substances that produce a definite physiological action on the human body. In this study, we explored the efficacy of methanol, chloroform and petroleum ether extracts of two traditionally used medicinal plants Gnidia glauca (Fresen) Gilg. and Pothos scandens L. against human pathogenic fungi and bacteria. The powdered plant materials were subjected to soxhlet extraction … Continue reading “Antibacterial and Antifungal Efficacy of Gnidia glauca (Fresen) Gilg. and Pothos scandens L.”