Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00074
I. Djaghout, R. Ksouri, R. Maizi, Abdel Ghani Boudjahem, M. Derdare
The structural, elastic and thermodynamic properties of the manganese monocarbide in ZnS (B3) phase were investigated using the DFT calculation with the PBE functional. The ground state properties of this materials such as lattice constant, bulk modulus, pressure derivatives of bulk modulus and Young’s modulus are calculated and the obtained results show a good agreement with the experimental data. Moreover, the estimated values of elastic constants indicate that the studied material is found to be mechanically stable. The results show also that the heat capacity of this materials as a function of the temperature is close to the Dulong-Petit limit (49.6 J/mol.K)at higher temperatures. The thermal expansion( α) and Debye parameter were also calculated at the different temperatures. The pressure effects on the above parameters were computed and their values are compared with the experimental results.
{"title":"Structural, Mechanical and Thermodynamic properties of Manganese Monocarbide (MnC) in ZnS phase under High Pressure: a DFT Study","authors":"I. Djaghout, R. Ksouri, R. Maizi, Abdel Ghani Boudjahem, M. Derdare","doi":"10.52711/0974-4150.2022.00074","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00074","url":null,"abstract":"The structural, elastic and thermodynamic properties of the manganese monocarbide in ZnS (B3) phase were investigated using the DFT calculation with the PBE functional. The ground state properties of this materials such as lattice constant, bulk modulus, pressure derivatives of bulk modulus and Young’s modulus are calculated and the obtained results show a good agreement with the experimental data. Moreover, the estimated values of elastic constants indicate that the studied material is found to be mechanically stable. The results show also that the heat capacity of this materials as a function of the temperature is close to the Dulong-Petit limit (49.6 J/mol.K)at higher temperatures. The thermal expansion( α) and Debye parameter were also calculated at the different temperatures. The pressure effects on the above parameters were computed and their values are compared with the experimental results.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76153844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00079
Laid Zeghoud, Bachir BEN SEGHİR, H. Hemmami, S. Zeghoud, Ilham Ben Amor, I. Kouadri, A. Rebiai, A. Tliba, Meriem Dia, Soumeia Aiba
In terms of food safety and quality, the authenticity of food products is a major concern. The authenticity of honey in regard to its botanical or geographic origin and adulteration has drawn more attention in recent years. Honey is a natural, ready-to-eat product that has a high level of nutrition and offers a number of health advantages. In order to counteract frequent honey frauds including mislabeling honey's origin and adulteration with sugar or syrups, companies and consumers must prioritize the authentication of honey. Different analytical techniques are employed to identify genuine honey. The traditional analytical procedures are still employed in conjunction with cutting-edge approaches as part of preliminary screening, processing, and product standards with a wide variety of tools and methodologies. The majority of analytical techniques offer pollen distribution information, physicochemical data, and profiles of phenolic, flavonoid, carbohydrate, amino acid, fragrance, and individual marker components. In this study, the sugar profile, physicochemical characteristics, and honey quality of ten samples of Algerian honey from various areas were examined. High-performance liquid chromatography was used to identify the sugars (fructose, glucose, sucrose, maltose, and lactose) as well as the physicochemical characteristics (moisture, water activity, pH, acidity, conductivity, and color) using the Harmonized Method of the International Honey Commission. The quality of honey throughout storage and processing was not appropriately described by the moisture content alone.
{"title":"Conventional and Modern Analytical Methods used for Algerian Honey Authentication","authors":"Laid Zeghoud, Bachir BEN SEGHİR, H. Hemmami, S. Zeghoud, Ilham Ben Amor, I. Kouadri, A. Rebiai, A. Tliba, Meriem Dia, Soumeia Aiba","doi":"10.52711/0974-4150.2022.00079","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00079","url":null,"abstract":"In terms of food safety and quality, the authenticity of food products is a major concern. The authenticity of honey in regard to its botanical or geographic origin and adulteration has drawn more attention in recent years. Honey is a natural, ready-to-eat product that has a high level of nutrition and offers a number of health advantages. In order to counteract frequent honey frauds including mislabeling honey's origin and adulteration with sugar or syrups, companies and consumers must prioritize the authentication of honey. Different analytical techniques are employed to identify genuine honey. The traditional analytical procedures are still employed in conjunction with cutting-edge approaches as part of preliminary screening, processing, and product standards with a wide variety of tools and methodologies. The majority of analytical techniques offer pollen distribution information, physicochemical data, and profiles of phenolic, flavonoid, carbohydrate, amino acid, fragrance, and individual marker components. In this study, the sugar profile, physicochemical characteristics, and honey quality of ten samples of Algerian honey from various areas were examined. High-performance liquid chromatography was used to identify the sugars (fructose, glucose, sucrose, maltose, and lactose) as well as the physicochemical characteristics (moisture, water activity, pH, acidity, conductivity, and color) using the Harmonized Method of the International Honey Commission. The quality of honey throughout storage and processing was not appropriately described by the moisture content alone.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76986070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00073
Swapna A. Surendran, Akshay K, A. V., D. S, Vismaya Venugopalan
A new simple, accurate precise, cost effective, rapid and sensitive UV-Visible spectrophotometric method was developed for the estimation of Pregabalin in its pure and dosage form using Bromophenol blue. The developed method was validated as per ICH guideline in terms of linearity, accuracy, precision, ruggedness, LOD and LOQ. In this method the solvent used for the preparation of Pregabalin was distilled water. The method is based on the formation of brown colored ion-pair complex of Pregabalin with Bromophenol Blue reagent. The ion pair complex was produced in presence of Acid Phthalate Buffer of pH 3. The developed brown colour was stable at room temperature. The developed brown coloured complex showed maximum absorbance at 592nm. Linearity was found in the concentration range of 50, 60, 70, 80 and 90µg/ml with regression coefficient value 0.995. Precision studies for intra-day and inter-day shows that percentage relative standard deviation was within range of acceptable limit. The recovery studies were carried out at three percentage levels that is 50%, 100% and 150% levels. The results shows that the method was found to be accurate. The limit of detection (LOD) was found to be 10.91µg/ml and limit of quantification (LOQ) was found to be 33.06µg/ml. A ruggedness study was carried out using different analysts; assure that the method was rugged. Hence the method can be applied for routine quality control of the drug.
{"title":"A new Validated UV-visible Spectrophotometric Method for the Estimation of Pregabalin in its pure and dosage form using Bromophenol blue","authors":"Swapna A. Surendran, Akshay K, A. V., D. S, Vismaya Venugopalan","doi":"10.52711/0974-4150.2022.00073","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00073","url":null,"abstract":"A new simple, accurate precise, cost effective, rapid and sensitive UV-Visible spectrophotometric method was developed for the estimation of Pregabalin in its pure and dosage form using Bromophenol blue. The developed method was validated as per ICH guideline in terms of linearity, accuracy, precision, ruggedness, LOD and LOQ. In this method the solvent used for the preparation of Pregabalin was distilled water. The method is based on the formation of brown colored ion-pair complex of Pregabalin with Bromophenol Blue reagent. The ion pair complex was produced in presence of Acid Phthalate Buffer of pH 3. The developed brown colour was stable at room temperature. The developed brown coloured complex showed maximum absorbance at 592nm. Linearity was found in the concentration range of 50, 60, 70, 80 and 90µg/ml with regression coefficient value 0.995. Precision studies for intra-day and inter-day shows that percentage relative standard deviation was within range of acceptable limit. The recovery studies were carried out at three percentage levels that is 50%, 100% and 150% levels. The results shows that the method was found to be accurate. The limit of detection (LOD) was found to be 10.91µg/ml and limit of quantification (LOQ) was found to be 33.06µg/ml. A ruggedness study was carried out using different analysts; assure that the method was rugged. Hence the method can be applied for routine quality control of the drug.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84005982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00085
D. Karati, Somsubhra Ghosh, Parna Pati, Debgopal Ganguli, Puja Saha
Chromatography is a method for the isolation of a mixture into separate sections. It is usually based on the principle of partition of solute between two phases. It usually consists of a mobile phase and a stationary phase. The advancement of the mobile process in the planar stationary stage is evoked by different external or internal forces. Capillarity and gravity are the intrinsic force whereas external forces are electric field, pump, and centrifugal forces. Thin layer chromatography and high-pressure thin layer chromatography are based on the adsorption theory. Forced flow thin layer chromatography is also based on the adsorption principle. FFTLC is an authoritative method of separation that uses a solvent pump to extract the sample mixture into a pressurized ultra-micro cavity containing an adsorbent analytical or preparative planer bed. FFTLC needs no or slight sample preparation as in TLC. One relation between FFTLC and high-pressure liquid chromatography is that as in HPLC, the maximum layer length is used for analytical and preparatory separation. FFTLC is a process in which continuous production and continual evaporation of the mobile phase from the end of the chromatography plate produces forced-flow. Here, we focus on FFTLC, an advanced and more sophisticated chromatographic technique.
{"title":"Review on Forced Flow Thin Layer Chromatography: An updated Analytical Technique","authors":"D. Karati, Somsubhra Ghosh, Parna Pati, Debgopal Ganguli, Puja Saha","doi":"10.52711/0974-4150.2022.00085","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00085","url":null,"abstract":"Chromatography is a method for the isolation of a mixture into separate sections. It is usually based on the principle of partition of solute between two phases. It usually consists of a mobile phase and a stationary phase. The advancement of the mobile process in the planar stationary stage is evoked by different external or internal forces. Capillarity and gravity are the intrinsic force whereas external forces are electric field, pump, and centrifugal forces. Thin layer chromatography and high-pressure thin layer chromatography are based on the adsorption theory. Forced flow thin layer chromatography is also based on the adsorption principle. FFTLC is an authoritative method of separation that uses a solvent pump to extract the sample mixture into a pressurized ultra-micro cavity containing an adsorbent analytical or preparative planer bed. FFTLC needs no or slight sample preparation as in TLC. One relation between FFTLC and high-pressure liquid chromatography is that as in HPLC, the maximum layer length is used for analytical and preparatory separation. FFTLC is a process in which continuous production and continual evaporation of the mobile phase from the end of the chromatography plate produces forced-flow. Here, we focus on FFTLC, an advanced and more sophisticated chromatographic technique.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86347279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00081
Chahrazad Bakka, O. Smara, H. Dendougui, M. Hadjadj
Pistacia atlantica belongs to the Anacardiaceae family, it has been widely used in the Middle Eastern and Mediterranean areas since ancient times. Pistacia atlantica has been used for different diseases like stomach, pain, peptic ulcer, wounds, renal disorders, and coughs. This study aims to review its ethnobotanical characterization, traditional uses, phytochemistry, and pharmacological activities found in this plant. The data in this review article was based on electronic databases such as Web of Science, Springer, Yahoo search, Science Direct, PubMed, and Google Scholar for papers published from 2016 until March 2021 are considered. The results showed that Pistacia atlantica has many medicinal properties such as antioxidant, antidiabetic, anticancer, anti-inflammatory, and others. Phytochemical has shown the presence of numerous valuable compounds, including volatile compounds, fatty acids, phenolic compounds, and flavonoids. In this regard, the ethnomedicinal, phytochemistry, biological, and pharmacological properties of Pistacia atlantica have been reviewed here.
阿斯特兰(Pistacia atlantica)属阿斯特兰科，自古以来就广泛应用于中东和地中海地区。黄连木已被用于不同的疾病，如胃病、疼痛、消化性溃疡、伤口、肾脏疾病和咳嗽。本文综述了该植物的民族植物学特征、传统用途、植物化学和药理活性。本综述文章的数据基于Web of Science、Springer、Yahoo search、Science Direct、PubMed、Google Scholar等电子数据库，收录了2016年至2021年3月间发表的论文。结果表明，黄连木具有抗氧化、抗糖尿病、抗癌、抗炎等多种药理作用。植物化学已经显示了许多有价值的化合物的存在，包括挥发性化合物、脂肪酸、酚类化合物和类黄酮。在这方面，本文综述了黄连木的民族医药、植物化学、生物学和药理特性。
{"title":"Ethnomedicinal, Phytochemical and Pharmacological properties of Pistacia atlantica Desf. (Anacardiaceae): Review","authors":"Chahrazad Bakka, O. Smara, H. Dendougui, M. Hadjadj","doi":"10.52711/0974-4150.2022.00081","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00081","url":null,"abstract":"Pistacia atlantica belongs to the Anacardiaceae family, it has been widely used in the Middle Eastern and Mediterranean areas since ancient times. Pistacia atlantica has been used for different diseases like stomach, pain, peptic ulcer, wounds, renal disorders, and coughs. This study aims to review its ethnobotanical characterization, traditional uses, phytochemistry, and pharmacological activities found in this plant. The data in this review article was based on electronic databases such as Web of Science, Springer, Yahoo search, Science Direct, PubMed, and Google Scholar for papers published from 2016 until March 2021 are considered. The results showed that Pistacia atlantica has many medicinal properties such as antioxidant, antidiabetic, anticancer, anti-inflammatory, and others. Phytochemical has shown the presence of numerous valuable compounds, including volatile compounds, fatty acids, phenolic compounds, and flavonoids. In this regard, the ethnomedicinal, phytochemistry, biological, and pharmacological properties of Pistacia atlantica have been reviewed here.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91473266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00075
Snehal A. Rokade, Rupali. V. Jadhav
An analgesic, or painkiller, is any member of the group of drugs used to achieve analgesia-relief from pain. Analgesic drugs act in various ways on the peripheral and central nervous systems. They are distinct from anesthetics, which reversibly eliminate sensation, and include Ibuprofen, the non-steroidal anti-inflammatory drugs [NSAIDs] such as the salicylates, and opioid drugs such as morphine and opium. In choosing analgesics, the severity and response to other medication determines the choice of agent; the World Health Organization [WHO] pain ladder specifies mild analgesics as its first step. Analgesia/Pain is ill-defined unpleasant sensation evoked by stimulus [external / internal] – the most important symptom giving warning signal and primarily protective in nature. Analgesia due to blockade of pain nerve sensitizing mechanism induced by bradykinin, TNFα, ILs. An analgesic is a drug that selectively relieves pain by acting in the CNS or on peripheral pain mechanisms, without significantly altering consciousness. Pain is a warning signal, primarily protective in nature, but causes discomfort and suffering; may even be unbearable and incapacitating. Excessive pain may produce other effects- sinking sensation, apprehension, sweating, nausea, palpitation, rise or fall in BP, tachypnoea. Analgesics relieve pain as symptoms, without affecting it’s causes.
{"title":"Review on Analgesic activity using Tail Immersion Method","authors":"Snehal A. Rokade, Rupali. V. Jadhav","doi":"10.52711/0974-4150.2022.00075","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00075","url":null,"abstract":"An analgesic, or painkiller, is any member of the group of drugs used to achieve analgesia-relief from pain. Analgesic drugs act in various ways on the peripheral and central nervous systems. They are distinct from anesthetics, which reversibly eliminate sensation, and include Ibuprofen, the non-steroidal anti-inflammatory drugs [NSAIDs] such as the salicylates, and opioid drugs such as morphine and opium. In choosing analgesics, the severity and response to other medication determines the choice of agent; the World Health Organization [WHO] pain ladder specifies mild analgesics as its first step. Analgesia/Pain is ill-defined unpleasant sensation evoked by stimulus [external / internal] – the most important symptom giving warning signal and primarily protective in nature. Analgesia due to blockade of pain nerve sensitizing mechanism induced by bradykinin, TNFα, ILs. An analgesic is a drug that selectively relieves pain by acting in the CNS or on peripheral pain mechanisms, without significantly altering consciousness. Pain is a warning signal, primarily protective in nature, but causes discomfort and suffering; may even be unbearable and incapacitating. Excessive pain may produce other effects- sinking sensation, apprehension, sweating, nausea, palpitation, rise or fall in BP, tachypnoea. Analgesics relieve pain as symptoms, without affecting it’s causes.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72669393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00080
Khaoula Ghenaiet, A. Boutefnouchet, Asma Lekouaghet, Nafissa Boutefnouchet Abassi, L. Tichati
The formation of urinary stones is a serious clinical problem in the world, the struvite of which is one of the characteristic components of urolithiasis of infectious origin. The objective of this study is to evaluate the in vitro litholytic and inhibitory effects of the leaf aqueous extract of Fraxinus excelsior L plant on the crystallization of struvite. The plant is commonly used in traditional Algerian medicine.A characterization method of Fraxinus excelsior L plant was first performed to determine the total phenolic and flavonoid compounds of Fraxinus excelsior L leaf aqueous extract. Struvite crystals prepared with two different processes had subsequently undergone an inhibition assay by supplementing Aqueous Extract with varying concentrations. In the first process, struvite was biologically crystallized in a synthetic urine in the presence of Proteus mirabilis during 24 hours of incubation period. This was followed by the addition of Aqueous Extract, the effect of which was evaluated after 1-hour. In the second process, struvite crystals were chemically synthesized for 30 minutes in the presence of aqueous extract. These two processes allow to assess, respectively, the litholytic effect of aqueous extract on the previously formed struvite crystals and the inhibitory effect of the crystallization of struvite. These various tests of crystallization and inhibition of struvite crystals were conducted by Polarized Light Microscopy (PLM) and Fourier Transform Infrared (FTIR) Spectroscopy. The results reveal that this Aqueous Extract contains an estimated total phenolic content of 60.92 ± 0.94 mg gallic acid equivalent (GAE)/g of extract and a total flavonoid content of 19.32 ± 0.75 mg quercetin equivalent (QE)/g of extract. The in vitro struvite crystals dissolution testing revealed a significant litholytic effect. Also, the struvite crystallization inhibition testing showed that it exerted a significant inhibitory effect observed with polarized light.The effect of this extract is evident against struvite crystals with a conclusive litholytic and inhibitory potential. The present results open up significant preventive management prospects for this type of lithiasis.
{"title":"Evaluation of the Antilithiasic activity, Phospho-ammoniaco-magnésien of the aqueous extract of Fraxinus excelsior (L.)","authors":"Khaoula Ghenaiet, A. Boutefnouchet, Asma Lekouaghet, Nafissa Boutefnouchet Abassi, L. Tichati","doi":"10.52711/0974-4150.2022.00080","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00080","url":null,"abstract":"The formation of urinary stones is a serious clinical problem in the world, the struvite of which is one of the characteristic components of urolithiasis of infectious origin. The objective of this study is to evaluate the in vitro litholytic and inhibitory effects of the leaf aqueous extract of Fraxinus excelsior L plant on the crystallization of struvite. The plant is commonly used in traditional Algerian medicine.A characterization method of Fraxinus excelsior L plant was first performed to determine the total phenolic and flavonoid compounds of Fraxinus excelsior L leaf aqueous extract. Struvite crystals prepared with two different processes had subsequently undergone an inhibition assay by supplementing Aqueous Extract with varying concentrations. In the first process, struvite was biologically crystallized in a synthetic urine in the presence of Proteus mirabilis during 24 hours of incubation period. This was followed by the addition of Aqueous Extract, the effect of which was evaluated after 1-hour. In the second process, struvite crystals were chemically synthesized for 30 minutes in the presence of aqueous extract. These two processes allow to assess, respectively, the litholytic effect of aqueous extract on the previously formed struvite crystals and the inhibitory effect of the crystallization of struvite. These various tests of crystallization and inhibition of struvite crystals were conducted by Polarized Light Microscopy (PLM) and Fourier Transform Infrared (FTIR) Spectroscopy. The results reveal that this Aqueous Extract contains an estimated total phenolic content of 60.92 ± 0.94 mg gallic acid equivalent (GAE)/g of extract and a total flavonoid content of 19.32 ± 0.75 mg quercetin equivalent (QE)/g of extract. The in vitro struvite crystals dissolution testing revealed a significant litholytic effect. Also, the struvite crystallization inhibition testing showed that it exerted a significant inhibitory effect observed with polarized light.The effect of this extract is evident against struvite crystals with a conclusive litholytic and inhibitory potential. The present results open up significant preventive management prospects for this type of lithiasis.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84685707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00076
Auteur Hamada Hakim
Toxicity data for the 50% growth inhibitory concentration against Tetrahymena pyriformis pCIC50 = -logCIC50 for 85 phenols substituted were obtained experimentally. Log (CIC50)-1 along with the hydrophobicity, the logarithm of the 1-octanol/water partition coefficient (log Kow), and R2u (GETAWAY descriptors). The entire data set was randomly split into a training set (60chemicals) used to establish the QSAR model, and a test set (25 chemicals) for statistical external validation The descriptors models were selected from an extensive set of several descriptors (topological, geometrical and quantum). Quantitative structure-activity/property (QSAR / The values of the statistical parameters obtained from the multiple linear regression analysis (R²=95.5%, Q²=95.01%, S=0.157, F=604.34, P=0, SDEC=0.153, SDEP=0.161, Q²ext=95.96%, SDEPext=0.153) testify to the good fit of the model.
{"title":"Predictive QSAR models for the toxicity of Phenols","authors":"Auteur Hamada Hakim","doi":"10.52711/0974-4150.2022.00076","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00076","url":null,"abstract":"Toxicity data for the 50% growth inhibitory concentration against Tetrahymena pyriformis pCIC50 = -logCIC50 for 85 phenols substituted were obtained experimentally. Log (CIC50)-1 along with the hydrophobicity, the logarithm of the 1-octanol/water partition coefficient (log Kow), and R2u (GETAWAY descriptors). The entire data set was randomly split into a training set (60chemicals) used to establish the QSAR model, and a test set (25 chemicals) for statistical external validation The descriptors models were selected from an extensive set of several descriptors (topological, geometrical and quantum). Quantitative structure-activity/property (QSAR / The values of the statistical parameters obtained from the multiple linear regression analysis (R²=95.5%, Q²=95.01%, S=0.157, F=604.34, P=0, SDEC=0.153, SDEP=0.161, Q²ext=95.96%, SDEPext=0.153) testify to the good fit of the model.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85232317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-14DOI: 10.52711/0974-4150.2022.00069
B. A., Messaoui. M. M
Lignocellulosic residues can be used in wastewater treatment as clean, natural and low cost adsorbents. In the present study, our approach is to develop the preparation and characterization by physicochemical methods of an adsorbent material, from mixed red and hard wood sawdust. The preparation of the adsorbent material includes the sieving of the sawdust, the extraction of the extractables, a pretreatment with sulphuric acid H2SO4 (at 20% to 50% and at 80%) as an activating agent. The chemical modification, which serves to improve the adsorption capacity of the material, is verified by means of analysis: Fourier Transfer Infrared (FTIR) and X-Ray Diffraction (XRD) (crystallinity index). The chemical modification of the lignocellulosic material induced a significant elimination of hemicelluloses, which resulted in the appearance of a new microstructure, especially in the case of acid pre-hydrolysis at 50% and 80%, in favor of increasing its potential adsorption capacity proven by testing it on the adsorption of acetic acid.
{"title":"Characterization of treated and untreated Sawdust and its Valorization as Adsorbent","authors":"B. A., Messaoui. M. M","doi":"10.52711/0974-4150.2022.00069","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00069","url":null,"abstract":"Lignocellulosic residues can be used in wastewater treatment as clean, natural and low cost adsorbents. In the present study, our approach is to develop the preparation and characterization by physicochemical methods of an adsorbent material, from mixed red and hard wood sawdust. The preparation of the adsorbent material includes the sieving of the sawdust, the extraction of the extractables, a pretreatment with sulphuric acid H2SO4 (at 20% to 50% and at 80%) as an activating agent. The chemical modification, which serves to improve the adsorption capacity of the material, is verified by means of analysis: Fourier Transfer Infrared (FTIR) and X-Ray Diffraction (XRD) (crystallinity index). The chemical modification of the lignocellulosic material induced a significant elimination of hemicelluloses, which resulted in the appearance of a new microstructure, especially in the case of acid pre-hydrolysis at 50% and 80%, in favor of increasing its potential adsorption capacity proven by testing it on the adsorption of acetic acid.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82621941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Honey has been made from some variety of date (Phoenix dactylifera L) Ghars, Tinicin and Tekermist (Tantbocht). The aim of this study is to determine different phytochemical compound and antioxidant properties of honey dates from Ouedrigh and Ouedsouf regions. The physical properties of these samples were very high significantly differences (p<0.001) on moisture and pH value with dark color in all type of honey dates. In addition, There were a significant differences (p<0.05) on total phenols, flavonoids and total sugars content among samples. Based on antioxidant properties, there were also significant difference (p<0.05) between the different samples. In conclusion the different product of honey date given the different beneficial antioxidant properties of these varieties but the dates honey Tinicin has a high importance antioxidant effect and physicochemical properties compared to the auther variety of honey dates.
{"title":"Physico-chemical Analysis, Phytochemical content and Antioxidant properties of honey dates \"Robe\" of some Algeria date variety from Oued Righ and Oued Souf regions","authors":"Chetehouna Sara, Derouiche Samir, Atoussi Ouidad, Guemari Imane-Yousra","doi":"10.52711/0974-4150.2022.00070","DOIUrl":"https://doi.org/10.52711/0974-4150.2022.00070","url":null,"abstract":"Honey has been made from some variety of date (Phoenix dactylifera L) Ghars, Tinicin and Tekermist (Tantbocht). The aim of this study is to determine different phytochemical compound and antioxidant properties of honey dates from Ouedrigh and Ouedsouf regions. The physical properties of these samples were very high significantly differences (p<0.001) on moisture and pH value with dark color in all type of honey dates. In addition, There were a significant differences (p<0.05) on total phenols, flavonoids and total sugars content among samples. Based on antioxidant properties, there were also significant difference (p<0.05) between the different samples. In conclusion the different product of honey date given the different beneficial antioxidant properties of these varieties but the dates honey Tinicin has a high importance antioxidant effect and physicochemical properties compared to the auther variety of honey dates.","PeriodicalId":8550,"journal":{"name":"Asian Journal of Research in Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80742000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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