eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
84
91
10.33945/SAMI/pcbr.2019.183239.1033
92159
Plant mediated synthesis of Iron nanoparticles and their Applications: A Review
Hency Thacker
hhencyaatha@gmail.com
1
Vijay Ram
drvrram@gmail.com
2
Pragnesh N Dave
pragnesh7@yahoo.com
3
Department of Chemistry, KSKV Kachchh University , Bhuj(Kachchh)
Department of Chemistry, KSKV Kachchh University , Bhuj(Kachchh)
Department of Chemistry, Sardar Patel University, Vallabh vidynagar-388 120,Gujarat,India
Nanoparticles form the basis of Nanoscience and nanotechnology which are considered as the most growing disciplines amongst various fields of science. Various methods for synthesis of nanoparticles include conventional methods like hydrothermal method, sol-gel method, laser-ablation, electrochemical techniques, and thermal methods. However biogenic synthesis of iron nanoparticles is advantageous over conventional methods due to its eco-friendly, simple, cost-effective and non-toxic properties. Iron nanoparticles possess wide range of application from environmental remediation to magnetization of sediments and they are also known to possess anti-oxidant and anti-bacterial activity. Extracts of various plants like green tea, Amaranthus dubius, and Eichhornia Crassipes, Cynometra Ramiflora, and Eucalyptus tereticornis, Melaleuca Nesophila Rosemarinus Officinalis are reported for synthesis of iron nanoparticles. Different environmental remediation applications of iron nanoparticles include degradation of dyes, removal of nitrate, hexavalent chromium, arsenate, arsenite, chemical oxygen demand and total phosphates. This review focuses on various plant extracts utilized for synthesis of iron nanoparticles and their potential applications. Different classes of phytochemicals responsible for conversion of precursor iron to nano-sized iron material, various characterization techniques for iron nanomaterials fabricated using plant extracts and optimum conditions for pollutant removal are also discussed.
https://www.pcbiochemres.com/article_92159_3999865eea4dcc0d850a159a3fe17c96.pdf
Iron nanoparticles
Biogenic Synthesis
Environmental applications
Nanoscience
Nanotechnology
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
92
98
10.33945/SAMI/PCBR.2019.3.2
92244
The bioactivities of the neem (seeds and leaves) against Callosobruchus maculatus on a Vigna Subterranean L.
Kaana Asemave
kasemave@gmail.com
1
Titus Anure
titusanure@gmail.com
2
Dept. Chemistry, Benue State Unversit, Makurd-Ngera
Dept. Chemistry, Benue State Unversity, Makurrdi-Ngeria
This research reports the novel bioactivities of neem leaves powder, neem leaves concentrate, neem seeds powder and neem seeds oil against the weevil (Callosobruchus maculatus) on bambara groundnut. The leaves were grounded, crushed and subjected to ethanol to get the concentrate. While the seeds were dried under shade for one week, ground into fine particles. Cold bulk extraction was then used to obtain the neem seeds oil. The mortality count of Callosobruchus maculatus (C. maculatus) was studied by exposing the weevil to neem treated bambara groundnut at different days under laboratory condition. The neem dosage were 0.0, 0.1, 0.5 1.0 g/10 g of bambara groundnut. The percentage weight loss and seed damage were also determined at the end. The results indicated that neem seeds oil and neem leaves concentrate provided effective and comparable mortality counts against the C. maculatus. Again the neem powder (seeds and leaves) mortality counts were also comparable, but were less effective against the weevils as compared to the neem oil and concentrate at least for the first two days. Therefore, these neem materials could be used as biopesticides at the dose of _0.1 per 10 g to prevent C. maculatus attack on bambara groundnut during storage. This will reduce the usage of synthetic pesticides, thereby preventing their adverse residual effects on human and the environment.
https://www.pcbiochemres.com/article_92244_10919afcea1536b1c135b8a804043f1c.pdf
Biopesticides
C. maculatus
Vigna Subterranean L
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
99
107
10.33945/SAMI/PCBR.2019.2.3
92715
Heavy Metals Contents in Some Commercially available Coffee, Tea, and Cocoa Samples in Misurata City – Libya
Abdulfattah Alkherraz
abdo_7979355176@yahoo.co.uk
1
Omar Hashad
elmusllaty@gmail.com
2
Khaled Elsherif
elsherif27@yahoo.com
3
Chemistry Department, Faculty of Science, Misurata University, Misurata, Libya
General Electricity Company of Libya, Misurata, Libya
Chemistry Department, Faculty of Science, University of Benghazi, Benghazi, Libya
The purpose of the present study was to evaluate the concentrations of Mn, Cr, Fe, Cu, Zn, Pb, and Cd in 18 types of commercially available coffee, tea, and cocoa on Misurata city markets. The samples were dry digested and then measured by Microwave Plasma-Atomic Emission Spectrometry (MP-AES). The heavy elements levels were differed among the various types of analyzed samples. The concentrations of Mn were relatively higher than the other analyzed elements and varied between 1.0 – 673.3 mg/kg. The observed concentration ranges of the other elements, were as follows: Cr (0.1- 131.0 mg/kg), Fe (0.3 – 40.6 mg/kg), Cu (0.3 – 13.6 mg/kg), Zn (1.0 -20.9 mg/kg), Pb (1.8 – 4.4 mg/kg) and most Cd samples were below the instrument detection limits. The values determined for Mn, Cr, Fe, Cu, and Zn were lower than the maximum permissible limits. However, the concentrations of Pb were high according to the Brazilian law and Mercosul regulations, and the regulations of the European Union. Monitoring of heavy metal in food, like coffee, teas, and cocoa, provides useful information on safety features of food in regulatory procedures in terms of suitability of food for consumption, as well as its nutritional value.
https://www.pcbiochemres.com/article_92715_a14333b376c6c88cb5b099a43dec289c.pdf
heavy metals
Coffee
Tea
Cocoa
Microwave Plasma Atomic Emission
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
108
119
10.33945/SAMI/PCBR.2019.2.4
92716
Molecular Modeling of the antagonist compound esketamine and its molecular docking study with non-competitive N-methyl-D-aspartate (NMDA) receptors NR1, NR2A, NR2B and NR2D
Mehdi Nabati
mnabati@ymail.com
1
Vida Bodaghi-Namileh
vida.bn91@yahoo.com
2
Saman Sarshar
sarshar.saman@yahoo.com
3
Synthesis and Molecular Simulation Laboratory, Chemistry Department, Pars Isotope Company, P.O. Box: 1437663181, Tehran, Iran
Synthesis and Molecular Simulation Laboratory, Chemistry Department, Pars Isotope Company, P.O. Box: 1437663181, Tehran, Iran
Physics Department, Faculty of Science, Lorestan University, Khorramabad, Iran
The main purpose of the present article is reactivity and stability properties study of the antagonist compound esketamine and analyzing of its binding to the non-competitive N-methyl-D-aspartate receptor subunits (NR1, NR2A, NR2B and NR2D). In first step, the molecular structure of esketamine was optimized using density functional theory (DFT) method at B3YP/6-311++G(d,p) level of theory. The reactivity and stability properties of the title medicinal compound were studied by global reactivity indices. The computational data showed the molecule is stable and has low tendency to interact with residues of the biomolecules like receptors and proteins. Secondly, the molecule binding to the receptors were analyzed by molegro virtual docker (MVD) program. Our computations indicated that the compound asserts its pharmacological effects mainly through interactions with NR2B receptors and the NR2B residues containing Gly [A] 128, His [A] 127, Gly [A] 264, Tyr [A] 282, Ser [A] 131, Asp [A] 265, Ser [A] 260 and Met [A] 132 are the main amino acids involved in the ligand-receptor complex formation.
https://www.pcbiochemres.com/article_92716_2167d23419fbf60aa5d9a2aabe368ca5.pdf
Esketamine
Major depressive disorder
Molecular docking
Molecular Simulation
N-methyl-D-aspartate receptor
Treatment-resistant depression
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
120
133
10.33945/SAMI/PCBR.2019.2.5
92840
Cinnamomum zeylanicum Extract as Green Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solutions
Abdaziz Foda
asfouda@mans.edu.eg
1
Haitham Mosallam
haithamali20@yahoo.com
2
Ayman El-Khateeb
aymanco@mans.edu.eg
3
Mohamed Fakih
chem_m_fakih@yahoo.com
4
Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
Water and waste water company, Dakahlia, Egypt
Department of Agricultural Chemistry, Faculty of Agriculture, Mansoura University, Egypt
Lab manager in Talkha sanitation plant, water and wastewater company, Dakahlia, Egypt
The extract of cinnamomum have been evaluated as green inhibitor for the corrosion of Carbon steel in 1M HCl solution was investigated using weight loss, potentiodynamic polarization, ac electrochemical impedance spectroscopy (EIS) , electrochemical frequency modulation (FEM) and energy dispersion spectroscopy (EDS) and scanning electron microscopy (SEM) methods of monitoring corrosion . The inhibitive property of the extract is attributed to the presence of cinnamic aldehyde as major constituent in the extract. measurements showed that this extract act as mixed-type inhibitor. The inhibition efficiency was found to increase with inhibitor concentration. Results obtained by various techniques are close to each other and maximum efficiency of 81.1 % is acknowledged at the inhibitor concentration of 600 ppm. Langmuir isotherm model is found most suitable to explain adsorption behavior of inhibitor for C-steel surface. Molecular adsorption of inhibitor over C- steel surface is found responsible for corrosion inhibition of C-steel in acid.
https://www.pcbiochemres.com/article_92840_19552649426bb94a379b1b84560e3e4a.pdf
corrosion
Cinnamomum
C-steel
HCl
ۀreen inhibitor
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
134
142
10.33945/SAMI/PCBR.2019.2.6
92841
Determination of Important Phenolic Compounds in Pakistani Brown Rice Varieties in Controlled, Germinated and Fermented Conditions by High Performance Liquid Chromatography
Amir Hayat
hayat.amir1@gmail.com
1
Taj Muhammad Jahangir
jahangir@yahoo.com
2
Muhammad Yar Khuhawar
3
Malik Alamgir
4
Razim Ali
5
Arslan Ali
6
Syed Ghulam Musharraf
7
Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro-76062, Pakistan.
Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro-76062, Pakistan.
Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro-76062, Pakistan.
Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro-76062, Pakistan.
Department of Biotechnology/Microbiology, Faculty of Science, University of Karachi, Karachi-75270, Pakistan.
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences,University of Karachi, Karachi-75270, Pakistan.
H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences,University of Karachi, Karachi-75270, Pakistan.
A simple and novel high performance liquid chromatography (HPLC) method has been developed for the simultaneous determination and quantification of phenolic compounds in brown whole grain rice varieties of Pakistani origin. The accumulation of these compounds was studied during germination stages and fermentation process, thereby, providing a reliable and rapid method for their quantification in food samples. Calibration curves for the standard phenolic compounds showed good linear regression values (r2 =0.996-0.998) within the test ranges. The limit of detection and the limit of quantification were found in the range of 0.04-0.06 µg/mL and 0.166-0.205µg/mL, respectively. Precision (%RSD) of the method was found in the range of 0.05-5.25 and 0.05-0.58 for inter-day (n=3) and intra-day (n=5), respectively. The robustness (%RSD) was found in the range of 1.05-2.65. Excellent recoveries were attained within the range of 93%-106%. The average amount of phenolic compounds was found to be 0.185 g/100g in controlled condition whereas, further accumulation of these compounds was noticed during germination and fermentation phases. The maximum average amount of phenolic compounds after germination period of 120 hours and fermentation process was found to be 0.284 g/100g and 0.565 g/100g, respectively.
https://www.pcbiochemres.com/article_92841_cb5686617b15affb1240e14488df436c.pdf
Brown rice
Fermentation
Germination
HPLC
Phenolic Compounds
eng
Sami Publishing Company
Progress in Chemical and Biochemical Research
2676-7090
2645-6133
2019-08-01
2
3
143
149
10.33945/SAMI/PCBR.2019.2.7
93118
Screening of Cassia Sieberiana (Fabaceae) Leaf Extract for In-Vitro Anti Microbial and Anti-Ulcer Activities
Emmanuel Khan Muluh
khandora2000@gmail.com
1
Agustine Odokpe Ugbede
austineugbes@gmail.com
2
Terumon Amon Tor-Anyin
tatoranyin@yahoo.com
3
Department of Chemistry, College of Science, university of Agriculture, Makurdi Nigeria
Department of Chemistry, College of Science, university of Agriculture, Makurdi Nigeria
Department of Chemistry, College of Science, university of Agriculture, Makurdi Nigeria
Study evaluates the in-vitro anti-microbial and anti-ulcer activity of Cassia sieberiana leaf extracts on Helicobacter pylori the major etiological agent of chronic active gastritis and peptic ulcer disease also called gastric carcinoma. Crude extracts of cassia sieberiana were screened for their antimicrobial and antiulcer activities. Antimicrobial assay and in-vitro anti-ulcer (H. pylori) was performed using Agar Diffusion Method and Broth Dilution Method. Ethyl acetate extract had the highest diameter of zones of inhibition (30 mm). Ethyl acetate and methanol extracts had the same Minimum inhibitory concentrations of 10 mg/mL against Streptococus feacalis, Escherichia coli, Helicobacter pylori, shigella dysenteriae and Candida stellafoidea but for Campylobacter jejuni which had a minimum inhibitory concentration at 20 mg/mL for methanol extract. Methanol extract had the best minimum bactericidal/fungicidal concentration (40 mg/mL) on the pathogens. The results showed that Cassia sieberiana exhibited strong antimicrobial activity against H. pylori at two different concentrations of 20, 40mg/mL.
https://www.pcbiochemres.com/article_93118_f471648e0c9590c355656558639c4105.pdf
in-vitro
anti-microbial
anti-ulcer activities and pathogens inhibition