currently enrolled as a PhD student in Plant Proteomics at Department of Plant Sciences, Quaid-I-Azam University, Islamabad. Supervisors: Dr. Ghazala Mustafa
Aloe vera, Mentha arvensis (mint), Coriandrum sativum (coriander), and Cymbopogon citratus (lemon... more Aloe vera, Mentha arvensis (mint), Coriandrum sativum (coriander), and Cymbopogon citratus (lemongrass) leaf extracts were used to synthesize stable silver nanoparticles (Ag-NPs) by green chemistry. UV–vis spectrophotometry, X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) spectroscopy techniques were used to characterize these biosynthesized nanoparticles. The data indicated that the silver nanoparticles were successfully synthesized, and the narrower particle size distribution was at 10–22 nm by maintaining a specific pH. As a short-term post-sowing treatment, Ag-NP solutions of different sizes (10 and 50 ppm) were introduced to mung bean seedlings, and the overall increase in plant growth was found to be more pronounced at 50 ppm concentration. The antibacterial activity of Ag-NPs was also investigated by disc diffusion test, minimum inhibitory concentration (MIC), and minimum bactericidal concentrati...
Due to its eco-friendliness, cost-effectiveness, ability to be handled safely, and a wide variety... more Due to its eco-friendliness, cost-effectiveness, ability to be handled safely, and a wide variety of biological activities, the green plant-mediated synthesis of nanoparticles has become increasingly popular. The present work deals with the green synthesis and characterization of silver nanoparticles (AgNPs) using Elaeagnus umbellata (fruit) and the evaluation of its antibacterial, antioxidant, and phytotoxic activities. For the synthesis of AgNPs, fruit extract was treated with a 4 mM AgNO3 solution at room temperature, and a color change was observed. In UV-Visible spectroscopy, an absorption peak formation at 456 nm was the sign that AgNPs were present in the reaction solution. Scanning electron microscopy and physicochemical X-ray diffraction were used to characterize AgNPs, which revealed that they were crystalline, spherical, and had an average size of 11.94 ± 7.325 nm. The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphyl...
Background: There exist different methods to preserve the nutrition, color and taste of the fruit... more Background: There exist different methods to preserve the nutrition, color and taste of the fruit pulp for prolonged availability. Bacterial and fungal growth greatly affect the texture and taste of the pulp, if stored for longer period of time. Evaluation of different chemical preservatives to check efficacy and effects on microbial culture growth holds prime importance. The efforts are made in the present investigation to analyze the effect of various concentrations of Sodium Benzoate and Potassium Metabisulphite as preservative on microbial quality of apricot pulp during storage. Method: The uniformly ripened Halman Apricot pulp was extracted and preserved by chemical preservatives such as Sodium Benzoate (SB), and Potassium Meta-Bisulphite (PMS) at different concentrations. The pulp was investigated for Microbiological parameters i.e. total bacterial count (TBC) and total fungal count (TFC). The inhibitory activity of chemical preservatives was tested periodically by simulating...
Aloe vera, Mentha arvensis (mint), Coriandrum sativum (coriander), and Cymbopogon citratus (lemon... more Aloe vera, Mentha arvensis (mint), Coriandrum sativum (coriander), and Cymbopogon citratus (lemongrass) leaf extracts were used to synthesize stable silver nanoparticles (Ag-NPs) by green chemistry. UV–vis spectrophotometry, X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and energy dispersive X-ray (EDX) spectroscopy techniques were used to characterize these biosynthesized nanoparticles. The data indicated that the silver nanoparticles were successfully synthesized, and the narrower particle size distribution was at 10–22 nm by maintaining a specific pH. As a short-term post-sowing treatment, Ag-NP solutions of different sizes (10 and 50 ppm) were introduced to mung bean seedlings, and the overall increase in plant growth was found to be more pronounced at 50 ppm concentration. The antibacterial activity of Ag-NPs was also investigated by disc diffusion test, minimum inhibitory concentration (MIC), and minimum bactericidal concentrati...
Due to its eco-friendliness, cost-effectiveness, ability to be handled safely, and a wide variety... more Due to its eco-friendliness, cost-effectiveness, ability to be handled safely, and a wide variety of biological activities, the green plant-mediated synthesis of nanoparticles has become increasingly popular. The present work deals with the green synthesis and characterization of silver nanoparticles (AgNPs) using Elaeagnus umbellata (fruit) and the evaluation of its antibacterial, antioxidant, and phytotoxic activities. For the synthesis of AgNPs, fruit extract was treated with a 4 mM AgNO3 solution at room temperature, and a color change was observed. In UV-Visible spectroscopy, an absorption peak formation at 456 nm was the sign that AgNPs were present in the reaction solution. Scanning electron microscopy and physicochemical X-ray diffraction were used to characterize AgNPs, which revealed that they were crystalline, spherical, and had an average size of 11.94 ± 7.325 nm. The synthesized AgNPs showed excellent antibacterial activity against Klebsiella pneumoniae (14 mm), Staphyl...
Background: There exist different methods to preserve the nutrition, color and taste of the fruit... more Background: There exist different methods to preserve the nutrition, color and taste of the fruit pulp for prolonged availability. Bacterial and fungal growth greatly affect the texture and taste of the pulp, if stored for longer period of time. Evaluation of different chemical preservatives to check efficacy and effects on microbial culture growth holds prime importance. The efforts are made in the present investigation to analyze the effect of various concentrations of Sodium Benzoate and Potassium Metabisulphite as preservative on microbial quality of apricot pulp during storage. Method: The uniformly ripened Halman Apricot pulp was extracted and preserved by chemical preservatives such as Sodium Benzoate (SB), and Potassium Meta-Bisulphite (PMS) at different concentrations. The pulp was investigated for Microbiological parameters i.e. total bacterial count (TBC) and total fungal count (TFC). The inhibitory activity of chemical preservatives was tested periodically by simulating...
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