Bulletin of the Chemical Society of Ethiopia最新文献_第10页

Structure and properties of strontium phosphate glasses modified with aluminum oxide applied as glass ionomer cement 应用于玻璃离子水泥的氧化铝改性磷酸锶玻璃的结构与性能

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.9

G. El-Damrawi, D. Shosha, A. M. Abdelghany, M. I. Abdelghany

引用次数: 0

Adsorption of diazo dye direct red-28 and tetra-azo dye direct black-22 using calcined kaolin in aqueous solutions 煅烧高岭土在水溶液中吸附重偶氮染料直接红-28和四偶氮染料直接黑-22

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.5

S. Fındık

{"title":"Adsorption of diazo dye direct red-28 and tetra-azo dye direct black-22 using calcined kaolin in aqueous solutions","authors":"S. Fındık","doi":"10.4314/bcse.v37i3.5","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.5","url":null,"abstract":"ABSTRACT. In this study, the removal of diazo and tetra-azo dyes using calcined kaolin were compared. Direct red-28 (DR-28) and Direct black-22 (DB-22) was chosen as diazo and tetra-azo dyes, respectively. The kaolin obtained from Turkiye and calcined at 200 °C was found to be the most efficient adsorbent. Natural and calcined kaolins were characterized using SEM-EDS, FTIR, TGA, and XRD. The parameters such as, calcination temperature of the kaolin, adsorbent amount, temperature, initial pH, contact time, and initial concentration were studied. It was found that the removal rate of DR-28 was higher than that of DB-22 at the studied conditions. The removal of DR-28 and DB-22 were found to be 90.1% and 46.2% under the following conditions: adsorbent amount: 1.2 g/200 mL, initial concentration: 20 mg/L, original pH, temperature: 20 °C and contact time 120 min. The adsorption of the dyes was fitted to Langmuir isotherm model. The maximum adsorption capacity of calcined kaolin at 200 °C was determined as 5.39 and 3.5 mg/g for DR-28 and DB-22, respectively. The adsorption of DR-28 and DB-22 followed a pseudo-second order model. The thermodynamic study showed that the adsorption of DB-22 onto calcined kaolin was endothermic while that of DR-28 was exothermic. \u0000 \u0000KEY WORDS: Adsorption, Diazo dye, Tetra-azo dye, Kaolin \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 593-610. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.5","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43895036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Zinc(II) complex of (Z)-4-((4-nitrophenyl)amino)pent-3-en-2-one, a potential antimicrobial agent: synthesis, characterization, antimicrobial screening, DFT calculation and docking study 潜在抗菌剂（Z）-4-（（4-硝基苯基）氨基）戊-3-烯-2-酮锌（II）配合物的合成、表征、抗菌筛选、DFT计算和对接研究

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.8

I. Waziri, O. O. Wahab, G. A. Mala, S. O. Oselusi, S. A. Egieyeh, H. Nasir

{"title":"Zinc(II) complex of (Z)-4-((4-nitrophenyl)amino)pent-3-en-2-one, a potential antimicrobial agent: synthesis, characterization, antimicrobial screening, DFT calculation and docking study","authors":"I. Waziri, O. O. Wahab, G. A. Mala, S. O. Oselusi, S. A. Egieyeh, H. Nasir","doi":"10.4314/bcse.v37i3.8","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.8","url":null,"abstract":"ABSTRACT. Herein, the synthesis and characterizations of (Z)-4-((4-nitrophenyl)amino)pent-3-en-2-one (HL) ligand and its Zn(II) complex are reported. The compounds were characterized using elemental and thermogravimetric (TGA) analysis, electrochemical studies, FTIR, UV-Vis, 1H and 13C{H}NMR, HRMS, and PXRD techniques. Antimicrobial activity was screened on some Gram-positive and Gram-negative bacteria. DFT predictions were achieved using B3LYP, ωB97XD and M06-2X functional with 6-31+G(d,p) and LANL2DZ basis sets for nonmetallic and metallic atoms, respectively. The therapeutic potentials of the compounds were evaluated based on protein binding affinity, ADME/T and drug-likeness properties. The experimental results revealed the formation of a complex in which two ligands coordinated to the zinc ion in a tetrahedral arrangement through their carbonyl and amino groups. The antimicrobial study showed that the complex possesses higher antimicrobial activity than free ligand and the control (Streptomycin). B3LYP emerged as the best performing functional having yielded the best IR spectra and geometrical parameters relative to the experimental data. The density functional theory (DFT) predictions revealed that the complex is more active than the ligand, and its formation is thermodynamically feasible and exothermic. The docking results revealed that the binding affinities of the compounds are in agreement with the in-vitro data, and they possess drug-like properties. \u0000 \u0000KEY WORDS: Schiff base, Zinc complex, Antimicrobial, DFT, Docking study \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 633-651. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.8","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48952469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

p-Anisidine release study by hydrolysis of Schiff bases in homogeneous media 均匀介质中席夫碱水解对茴香胺释放研究

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.16

Awatif Amaria Moulay, Kheira Diaf, Zineb Elbahri, Abderrezzak Mesli, N. Chafi, N. Besbes

{"title":"p-Anisidine release study by hydrolysis of Schiff bases in homogeneous media","authors":"Awatif Amaria Moulay, Kheira Diaf, Zineb Elbahri, Abderrezzak Mesli, N. Chafi, N. Besbes","doi":"10.4314/bcse.v37i3.16","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.16","url":null,"abstract":"ABSTRACT. The objective of this work is to study the release of p-anisidine by the hydrolysis of synthesized Schiff bases N-vinylbenzylidene-p-anisidine (Im) as a monomer and its copolymers (Cp1, Cp2) with N,N-dimethylacrylamide (DMA). The hydrolysis behavior and kinetics are investigated in homogeneous media composed of ethanol/water (80% v/v) at 37 °C and at pH range of 4.0-10.0. The variation of the concentration over time is measured in thermostatically cells using UV-Vis spectroscopy. The results showed that the imine function hydrolysis obeyed to the first order for all compounds; the experimental kinetic constants are determined and the pH–rate diagram profile is established. It is noticed that the hydrolysis of imine function is extremely dependent on its carrier and the pH medium. \u0000 \u0000KEY WORDS: p-Anisidine, Copolymer, Schiff base, Hydrolysis, pH–rate diagram, Controlled release \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 745-755. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.16 ","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48391491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zeolite-x encapsulated Ni(II) and Co(II) complexes with 2,6-pyridine dicarboxylic acid as catalysts for oxidative degradation of atenolol in an aqueous solution 沸石-x包封Ni(II)和Co(II)配合物与2,6-吡啶二羧酸作为催化剂在水溶液中氧化降解阿替洛尔

4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.6

Fatemeh Hassani, Mahboubeh A. Sharif, Masoumeh Tabatabaee, Mahboobeh Mahmoodi

{"title":"Zeolite-x encapsulated Ni(II) and Co(II) complexes with 2,6-pyridine dicarboxylic acid as catalysts for oxidative degradation of atenolol in an aqueous solution","authors":"Fatemeh Hassani, Mahboubeh A. Sharif, Masoumeh Tabatabaee, Mahboobeh Mahmoodi","doi":"10.4314/bcse.v37i3.6","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.6","url":null,"abstract":"ABSTRACT. Complexes of Co(II) and Ni(II) with 2,6-pyridine dicarboxylic acid (PydcH2) have been synthesized in the NaX (zeolite-X) nanopores. The formation of zeolite X encapsulated Co(II) and Ni(II) complexes ([M(pydcH)2]-NaX, [M = Co(II) and Ni(II])] were confirmed using spectroscopic methods of FT-IR, elemental analysis, XRD, FE-SEM, and TEM. It was affirmed that the encapsulation of complexes in NaX pores was formed without changes in the structure and shape of the zeolite. The oxidative degradation reaction of atenolol with hydrogen peroxide as an oxidant was performed in the presence of synthesized [M(pydcH)2]-NaX nanocomposites to study their catalytic activity. Therefore, oxidation of atenolol was performed under different conditions of catalyst, temperature, and time. Under optimal conditions, catalysts [Co(pydcH)2]-NaX and [Ni(pydcH)2]-NaX showed 82.3% and 71.1% activity of atenolol oxidation, respectively. These catalysts were stable after recovery and were used three more times. The results showed that these catalysts were reusable and had a reduction in the catalytic activity of less than ten percent.  KEY WORDS: Zeolite-X, Nano porosity, Ion-exchange, Degradation of atenolol, 2,6-Pyridine dicarboxylic acid  Bull. Chem. Soc. Ethiop. 2023, 37(3), 611-622.  DOI: https://dx.doi.org/10.4314/bcse.v37i3.6","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135080303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical composition and antibacterial activity of essential oils from selected species of the genus Cucumis in Ethiopia 埃塞俄比亚黄瓜属植物精油的化学成分及抑菌活性

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.13

Teshale Assefa, H. Tesso, Eticha Abdisa, Leta Guta, Y. Melaku

{"title":"Chemical composition and antibacterial activity of essential oils from selected species of the genus Cucumis in Ethiopia","authors":"Teshale Assefa, H. Tesso, Eticha Abdisa, Leta Guta, Y. Melaku","doi":"10.4314/bcse.v37i3.13","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.13","url":null,"abstract":"ABSTRACT. Chemical composition of the essential oils obtained by hydrodistillation from various parts of Cucumis ficifolius, Cucumis dipsaceus and Cucumis prophetarum were determined by gas chromatography-mass spectrometry (GC/MS) analysis. Compounds 3,7,11,15-tetramethyl-1-hexadecanol, neophytadiene, and isophytol from leaves, phytol and octacosane from the stems, hentriacontane from the fruits, and octacosane, abietadiene from roots were identified the major constituents of Cucumis ficifolius. Hydrocarbons including Octacosane, tricosane, tetracosane, hentriacontane and hexacosane were the principal components of various parts of Cucumis. dispaceus. While leaves, stems and roots of Cucumis prophetarum contain mainly hentriacontane, neophytadiene and octacosane, respectively. The oils were evaluated for their antibacterial activity using disc diffusion method against four bacterial pathogens including E. coli, P. aeruginosa, S. aureus and S. pyogenes. All tested essential oils were sensitive against the bacterial strains. The essential oil from the leaves of Cucumis dispaceus exhibited the highest inhibition zone against E. coli (11.87±2.42 mm) while the other displayed modest activity compared with the positive control, ceftriaxone. Therefore, the antibacterial activities displayed by the essential oils along with the literature reported for their constituents suggest the use of these plants as an antibacterial agent. Furthermore, the results presented herein also support the traditional use of these plants against bacteria. \u0000 \u0000KEY WORDS: Cucumis ficifolius, Cucumis dipsaceus, Cucumis prophetarum, Antibacteria \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 703-715. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.13","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43905720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of fatty acids composition by GC-MS and physicochemical parameters of pumpkin (Cucurbita maxima) seed oil cultivated in Ethiopia 埃塞俄比亚南瓜籽油脂肪酸组成的GC-MS及理化参数测定

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.3

Mulubrhan K. Hagos, Estifanos Ele Yaya, Bhagwan Singh Chandravanshi, M. Redi-Abshiro

{"title":"Determination of fatty acids composition by GC-MS and physicochemical parameters of pumpkin (Cucurbita maxima) seed oil cultivated in Ethiopia","authors":"Mulubrhan K. Hagos, Estifanos Ele Yaya, Bhagwan Singh Chandravanshi, M. Redi-Abshiro","doi":"10.4314/bcse.v37i3.3","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.3","url":null,"abstract":"ABSTRACT. Pumpkin (Cucurbita maxima) seed oil was extracted using petroleum ether and analyzed for fatty acid compositions and physicochemical parameters of the oil. The seeds were found to contain 43.6% (%w/w) oil. Linoleic (50.7%), oleic (18.8%), palmitic (17.9%) and stearic (12.4%) were found as the primary fatty acids in pumpkin seed oil. Physicochemical parameters of pumpkin seed oil were found to be acid value (1.32 mg KOH/g oil), saponification value (191 mg KOH/g oil), iodine value (114 g I2/100 g), peroxide value (3.6 meq/kg), specific gravity (0.91 g/mL), refractive index (1.47) and viscosity (24.7). According to the study's findings, 50% of the oil contains the essential fatty acid omega-6 (linoleic acid). The high concentration of essential linoleic acid in pumpkin seed oil implies that it is a nutrient-dense food. The physicochemical study of the pumpkin seed oil samples also showed that they were suitable as industrial ingredients for making soap, cosmetics, medications, and food additives, among other things. \u0000 \u0000KEY WORDS: Pumpkin seed oil, Fatty acids, Oil content, Physicochemical parameters, Gas chromatography-mass spectrometry, Ethiopia \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 565-577. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.3","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49571181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Parameters for the conductometric association for lump and nano CoSO4.7H2O in the presence and absence of fuchsin acid in water at different temperature 块状和纳米CoSO4.7H2O在不同温度下存在和不存在品红酸的水中的电导缔合参数

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.20

Mohamed Fathi, E. A. Gomaa, Shereen E. Salem, Hamada M. Killa, Ayman A. Gouda, Abdel Hamid Farouk

{"title":"Parameters for the conductometric association for lump and nano CoSO4.7H2O in the presence and absence of fuchsin acid in water at different temperature","authors":"Mohamed Fathi, E. A. Gomaa, Shereen E. Salem, Hamada M. Killa, Ayman A. Gouda, Abdel Hamid Farouk","doi":"10.4314/bcse.v37i3.20","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.20","url":null,"abstract":"ABSTRACT. For lump and nanocobalt sulfate (CoSO4) in pure water, the affiliation and thermodynamic association characteristics were measured at 298.15, 303.15, 308.15, and 313.15 K. Based on the bulk and nano CoSO4 molar conductance, estimates were made for the parameters of the solvation, such as the activity coefficient, free energy of association, enthalpy of association, association constant, and entropy of association. We discussed about each of these solvation parameters. Two stoichiometric complexes were formed by the interaction of bulk and nano CoSO4.7H2O with fuchsin acid: 1:1 and 1:2 In the case of 1:1 (CoSO4.7H2O/fuchsin acid) compared to 1:2 (fuchsin acid in pure water as solvent), the complex Kf and ∆Gf are higher, indicating simpler complex formation. The temperature increase resulted in a drop in the formation constants. The complexation's negative ∆Gf values demonstrate that the process of complex synthesis was spontaneous and that the temperature improved the spontaneity. \u0000 \u0000KEY WORDS: Molar conductance, Association constants, Fuchsin acid, Nano cobalt sulfate salt, Formation constant \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 789-804. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.20","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45321025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

New tetrapropylammonium tetrabromozincate complex [(C3H7)4N]2ZnBr4(II) - synthesis, spectral, thermal characterization and antioxidant activity 新型四溴三酸四丙铵配合物[(C3H7)4N]2ZnBr4(II)的合成、光谱、热表征及抗氧化活性

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.7

Banupriya Kanagarajan, S. Parveen, R. Ramasamy, Umarani Ramasamy

{"title":"New tetrapropylammonium tetrabromozincate complex [(C3H7)4N]2ZnBr4(II) - synthesis, spectral, thermal characterization and antioxidant activity","authors":"Banupriya Kanagarajan, S. Parveen, R. Ramasamy, Umarani Ramasamy","doi":"10.4314/bcse.v37i3.7","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.7","url":null,"abstract":"ABSTRACT. The importance of the A2BX4 complex (A = bivalent ion, NH4+ and its alkyl radical derivatives; B = bivalent transition metal ion and X = halogen) has increased in recent years due to fascinating physical properties such as ferro elastic, ferroelectric, and corresponding – unequal phases at low temperatures. In modern technologies the use of transistors, ferromagnetic garnets, sensor systems, softener templates, and ultraviolet light, as well as IR solid-state lasers, efficient crystalline materials are expected. A slow evaporation approach at room temperature was used to grow the TPAPBr-Zn [(CH3CH2CH2)4N]2ZnBr4(II) challenging kind A2BX4. Elemental analysis, powder diffraction, differential thermal analysis, FT-IR, proton and carbon-13 NMR spectroscopic techniques are used to characterize the synthesized compound. The presence of chemical groups and methylene radical groups in the compound are confirmed by the FT-IR spectra. The presence of an N-propyl group in the molecule is indicated by the nuclear magnetic resonance spectra. Thermogram of the compound reveals two-stage decomposition showing endo followed by exothermic decomposition resulting zinc oxide as an end product. As synthesised compound shown significant inhibitory activity towards free radical. \u0000 \u0000KEY WORDS: Synthesis, Elemental analysis, Spectroscopic studies, TG analysis, Antioxidant, Tetrapropylammonium tetrabromozincate(II) \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 623-631. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.7","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47249814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Major and heavy metals contents and health risk assessment of pumpkin peel, flesh and seed by microwave plasma-atomic emission spectroscopy 微波等离子体原子发射光谱法测定南瓜皮、果肉和种子中主要重金属含量及健康风险

IF 1.2 4区化学

Bulletin of the Chemical Society of Ethiopia Pub Date : 2023-03-06 DOI: 10.4314/bcse.v37i3.1

Abeb Yetesha, Bhagwan Singh Chandravanshi, W. Yohannes

{"title":"Major and heavy metals contents and health risk assessment of pumpkin peel, flesh and seed by microwave plasma-atomic emission spectroscopy","authors":"Abeb Yetesha, Bhagwan Singh Chandravanshi, W. Yohannes","doi":"10.4314/bcse.v37i3.1","DOIUrl":"https://doi.org/10.4314/bcse.v37i3.1","url":null,"abstract":"ABSTRACT. The aim of this study was to determine the levels of major (Na, Mg, K, Ca) and heavy (Cr, Mn, Fe, Ni, Cu, Zn, Cd) metals and health risk assessment of the peel, flesh and seed of pumpkins cultivated in Ethiopia, using microwave plasma-atomic emission spectrometry. Dried powdered samples (0.5 g) were wet digested with 69% HNO3 and 30% H2O2 in microwave digester. The percent recovery for the three parts of pumpkin samples were 90-110%. The mean concentration of metals in pumpkin peel, flesh, seed samples, respectively, were K (27806±9767, 29531±2452, 10667±1133), Ca (5267±2092, 3190±900, 2919±397), Mg (4716±469, 848±349, 4668±413), Fe (158±29, 111±46, 225±56), Na (167±116, 63.1±15, 171±123), Mn (28.9±1.4, 9.61±3.2, 33.4±4.9), Zn (24.2±4.4, 10.6±4.0, 67.5±12.3), Cu (8.14±1.1, 15.1±9.3, 10.8±0.9), Ni (3.79±2.4, 2.14±1.3, 3.44±2.8), Cr (0.28±0.1, 0.36±0.2, 0.69±0.1), Cd (0.24±0.1, 0.46±0.1, 1.39±0.2) mg/kg. The hazard index (HI) of pumpkin flesh and seed indicated ingestion of pumpkin is safe from non-carcinogenic risk. The total cancer risk (CR) due to consumption of pumpkin flesh and seed through Cr and Cd from the three sampling sites are in the range 1.1 x 10-4 -1.8 x 10-4, indicating a non-risk of exposure to cancer due to the consumption of pumpkin grown in the sampling areas. \u0000 \u0000KEY WORDS: Pumpkin, Mineral content, Health risk, Microwave plasma-atomic emission spectrometry \u0000 \u0000Bull. Chem. Soc. Ethiop. 2023, 37(3), 533-551. \u0000DOI: https://dx.doi.org/10.4314/bcse.v37i3.1","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":" ","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42643379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1