Audu Jankada P., Ezugwu Hilary C., Ipav Selumun S.
The effect of ethanol leaf extract of Alchornea cordifolia on some biochemical parameters in phenyl hydrazine-induced anaemic Wistar rats was studied. A total of thirty-six (36) Wistar rats weighing 95-200 g were selected for this study and randomly divided into six groups of six animals per group. Group A (normal control), group B (negative or anaemic) control, group C (standard), group D, E and F (treated groups). Animals in groups B, C, D, E and F were induced with anaemia via intraperitoneal (I.P.) injection of 10mg/kg body weight phenyl hydrazine (PHZ) for 3 days and group A received distilled water in place of the PHZ for the same duration. After the induction, group A and B rats received oral administration 0.9w/v normal saline solution while groups C, D, E and F received oral administration of enzoron (10mg/kg.bwt), 100, 200 and 400 mg/kg.bwt of extract respectively for 14 days. The percentage yield of the extract was determined to be 18%. Phytochemical screening revealed the presence of saponins, carbohydrates, protein, alkaloids, phytosterols, phynols, flavonoids and glycosides at varying concentrations.A dose of 5000mg/kg. bwt was found to be safe in the LD50 study of the extract. The oral administration of the extract showed a significantly (p<0.05) level of total protein (TP) ,packed cell volume (PCV), haemoglobin (Hb) and red blood cells (RBCs) of the animals in treated groups compared to those of the animals in anaemic groups.The aspartate transaminase (AST),alanine transaminase (ALT)and total bilirubin (TB)were significantly (p<0.05) lowered in the extract treated groups than in the anaemic non-treated groups. There was a no-significant decrease (p>0.05) in the serum urea, creatinine, Na+ ,K+ and ,Cl- of animals in the extract treated groups when compared to both the normal and standard control . The histology of the spleen revealed the regeneration of damaged cells in extract treated groups unlike that of the anaemic non-treated groups which showed distorted architecture. The study suggests that treatment with Achornea cordifolia leaf extract in phenyl hydrazine induced anaemia enhances anti- anaemic and hepatoprotective effect possibly due to both its anti-inflammatory and antioxidant properties.
{"title":"Anti-Anaemic And Hepato–Renal Activities Of Ethanol Leaf Extract Of Alchornea Cordifolia In Phenyl Hydrazine Induced-Anaemic Wistar Rats","authors":"Audu Jankada P., Ezugwu Hilary C., Ipav Selumun S.","doi":"10.4314/gjpas.v28i2.12","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.12","url":null,"abstract":"The effect of ethanol leaf extract of Alchornea cordifolia on some biochemical parameters in phenyl hydrazine-induced anaemic Wistar rats was studied. A total of thirty-six (36) Wistar rats weighing 95-200 g were selected for this study and randomly divided into six groups of six animals per group. Group A (normal control), group B (negative or anaemic) control, group C (standard), group D, E and F (treated groups). Animals in groups B, C, D, E and F were induced with anaemia via intraperitoneal (I.P.) injection of 10mg/kg body weight phenyl hydrazine (PHZ) for 3 days and group A received distilled water in place of the PHZ for the same duration. After the induction, group A and B rats received oral administration 0.9w/v normal saline solution while groups C, D, E and F received oral administration of enzoron (10mg/kg.bwt), 100, 200 and 400 mg/kg.bwt of extract respectively for 14 days. The percentage yield of the extract was determined to be 18%. Phytochemical screening revealed the presence of saponins, carbohydrates, protein, alkaloids, phytosterols, phynols, flavonoids and glycosides at varying concentrations.A dose of 5000mg/kg. bwt was found to be safe in the LD50 study of the extract. The oral administration of the extract showed a significantly (p<0.05) level of total protein (TP) ,packed cell volume (PCV), haemoglobin (Hb) and red blood cells (RBCs) of the animals in treated groups compared to those of the animals in anaemic groups.The aspartate transaminase (AST),alanine transaminase (ALT)and total bilirubin (TB)were significantly (p<0.05) lowered in the extract treated groups than in the anaemic non-treated groups. There was a no-significant decrease (p>0.05) in the serum urea, creatinine, Na+ ,K+ and ,Cl- of animals in the extract treated groups when compared to both the normal and standard control . The histology of the spleen revealed the regeneration of damaged cells in extract treated groups unlike that of the anaemic non-treated groups which showed distorted architecture. The study suggests that treatment with Achornea cordifolia leaf extract in phenyl hydrazine induced anaemia enhances anti- anaemic and hepatoprotective effect possibly due to both its anti-inflammatory and antioxidant properties.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84607224","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}
Edible coating extends the life span of fresh fruits and vegetables. It is used to preserve food and prevent spoilage of fruits stored at room temperature. Preservative effect of gelatin coatings on the preservation of carrots was analyzed. Gelatin was prepared in four concentrations (0.5 g/ml, 1.0 g/ml, 1.5 g/ml and 2.0 g/ml). It was applied using dipping technique and allowed to dry before storage in sterile containers. Physiochemical parameters, weight loss and microbiological qualities of the coated and uncoated carrots were analyzed for a period of 7 days using standard procedures. Isolation and identification of bacteria was carried out using pour plate method and biochemical tests. Gelatin concentration at 0.5 g/ml attained nutrient retention with moisture content, total soluble solids and protein content of coated carrots ranging from 90.50 ± 0.01 – 85.40 ± 0.00 %, 12.20 ± 0.01 – 10.60 ± 0.00 Brixo and 1.50 ± 0.01 – 0.25 ± 0.01 % respectively. Weight loss of coated carrots at 0.5 g/ml concentration ranged from 0.35 ± 0.01 – 0.25 ± 0.02 g while 1.0 g/ml concentration ranged from 0.35 ± 0.00 – 0.28 ± 0.03 g. The bacterial and fungal counts of carrots coated with gelatin ranged between 0.20 ± 0.01 x 104 - 7.50 ± 0.05 x 104 Cfu/g and 0.20 ±0.01 x 104 – 18 ± 0.01 x 105 Cfu/g respectively. Eight bacterial and five fungal isolates namely Proteus sp., Staphylococcus sp., Enterobacter sp., Escherichia coli, Pseudomonas sp., Aeromonas sp, Bacillus sp, Streptococcus sp, Fusarium sp., Aspergillus niger, Aspergillus fumigatus, Rhizopus stolonifera, Penicillum sp. were the most occurring bacterial and fungal species respectively. Coating with gelatin extends life span, reduce water and helps maintain the phytochemical properties of the carrot.
{"title":"Preservative Effect Of Gelatin Coatings On Carrot","authors":"Ajiboye A. E., Olawoyin R. A.","doi":"10.4314/gjpas.v28i2.5","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.5","url":null,"abstract":"Edible coating extends the life span of fresh fruits and vegetables. It is used to preserve food and prevent spoilage of fruits stored at room temperature. Preservative effect of gelatin coatings on the preservation of carrots was analyzed. Gelatin was prepared in four concentrations (0.5 g/ml, 1.0 g/ml, 1.5 g/ml and 2.0 g/ml). It was applied using dipping technique and allowed to dry before storage in sterile containers. Physiochemical parameters, weight loss and microbiological qualities of the coated and uncoated carrots were analyzed for a period of 7 days using standard procedures. Isolation and identification of bacteria was carried out using pour plate method and biochemical tests. Gelatin concentration at 0.5 g/ml attained nutrient retention with moisture content, total soluble solids and protein content of coated carrots ranging from 90.50 ± 0.01 – 85.40 ± 0.00 %, 12.20 ± 0.01 – 10.60 ± 0.00 Brixo and 1.50 ± 0.01 – 0.25 ± 0.01 % respectively. Weight loss of coated carrots at 0.5 g/ml concentration ranged from 0.35 ± 0.01 – 0.25 ± 0.02 g while 1.0 g/ml concentration ranged from 0.35 ± 0.00 – 0.28 ± 0.03 g. The bacterial and fungal counts of carrots coated with gelatin ranged between 0.20 ± 0.01 x 104 - 7.50 ± 0.05 x 104 Cfu/g and 0.20 ±0.01 x 104 – 18 ± 0.01 x 105 Cfu/g respectively. Eight bacterial and five fungal isolates namely Proteus sp., Staphylococcus sp., Enterobacter sp., Escherichia coli, Pseudomonas sp., Aeromonas sp, Bacillus sp, Streptococcus sp, Fusarium sp., Aspergillus niger, Aspergillus fumigatus, Rhizopus stolonifera, Penicillum sp. were the most occurring bacterial and fungal species respectively. Coating with gelatin extends life span, reduce water and helps maintain the phytochemical properties of the carrot.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88462717","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}
Obo Offiong Etim, Aniekanabasi Jonathan Okon, Olajumoke Esther Olanrewaju, Simon Alain Inah
Background: The magnitude of production and sales of unregulated beverages in Nigeria has significantly increased over the years. Several studies have found a high prevalence of pathogenic microorganisms in locally made drink samples which is a threat to public health. This study assessed the knowledge, awareness of public health risks associated with the use of previously disposed plastic bottles for packaging drinks and hygiene practices of producers of artisanal drinks in Calabar Municipality, Nigeria. Methods: The study adopted a descriptive cross-sectional design using a semi-structured questionnaire to elicit information from 166 producers of locally packaged drinks. Data collected were analyzed using SPSS version 25.0. Associations were tested using chi square statistics. Results: The study showed a high level of awareness of food borne diseases 120(73.2%). Majority of the respondents 83(50.8%) had a high level of knowledge on health risks associated with use of previously disposed bottles for packaging drinks. The level of hygiene practice was however not in tandem with Knowledge as the practice level was generally poor 99(60.3%). Majority 114(69.5%) also had a negative attitude towards safe use of previously disposed plastic bottles. There was an association between producers’ duration in business and food hygiene practices (X2= 5.153, P= 0.023). There was also a significant association between producers’ exposure to food hygiene training and food hygiene practice (X2= 49.993, P= 0.0001) Conclusion: There is an urgent need for planned regular food safety training sessions for artisanal drink producers and the regulation of sales of artisanal drinks to safeguard public health in Nigeria.
{"title":"Public Health Risk Knowledge, Awareness And Hygiene Practices Of Producers Of Artisanal Drinks Using Previously Disposed Plastic Bottles In Calabar Municipality, Cross River State, Nigeria.","authors":"Obo Offiong Etim, Aniekanabasi Jonathan Okon, Olajumoke Esther Olanrewaju, Simon Alain Inah","doi":"10.4314/gjpas.v28i2.10","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.10","url":null,"abstract":"Background: The magnitude of production and sales of unregulated beverages in Nigeria has significantly increased over the years. Several studies have found a high prevalence of pathogenic microorganisms in locally made drink samples which is a threat to public health. This study assessed the knowledge, awareness of public health risks associated with the use of previously disposed plastic bottles for packaging drinks and hygiene practices of producers of artisanal drinks in Calabar Municipality, Nigeria. Methods: The study adopted a descriptive cross-sectional design using a semi-structured questionnaire to elicit information from 166 producers of locally packaged drinks. Data collected were analyzed using SPSS version 25.0. Associations were tested using chi square statistics. Results: The study showed a high level of awareness of food borne diseases 120(73.2%). Majority of the respondents 83(50.8%) had a high level of knowledge on health risks associated with use of previously disposed bottles for packaging drinks. The level of hygiene practice was however not in tandem with Knowledge as the practice level was generally poor 99(60.3%). Majority 114(69.5%) also had a negative attitude towards safe use of previously disposed plastic bottles. There was an association between producers’ duration in business and food hygiene practices (X2= 5.153, P= 0.023). There was also a significant association between producers’ exposure to food hygiene training and food hygiene practice (X2= 49.993, P= 0.0001) Conclusion: There is an urgent need for planned regular food safety training sessions for artisanal drink producers and the regulation of sales of artisanal drinks to safeguard public health in Nigeria.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"121 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78423981","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}
This study was assessed utilization of health information technology in provision of maternal and child health care among nurses in the University of Calabar Teaching Hospital, Calabar. The research design employed for the study was descriptive survey design. The sample of one hundred and ninety-six (196) registered nurses/midwives from the population of nurses providing maternal and child healthcare in maternity ward, children’s ward, pediatric ward, labour ward, antenatal clinic and postnatal clinic at UCTH, Calabar using simple random sampling technique. The instrument of data collection was a validated structured questionnaire. Data collected were analyzed using descriptive statistic, charts, frequencies tables and percentages. The findings of the study revealed that majority (87.2%) of nurses working in UCTH, Calabar use paper based routine health information system. The factors inhibiting utilization of health information technology among nurses to deliver maternal and child healthcare in UCTH, Calabar include: inadequate knowledge of informatics, lack of comprehensive training of nurses on ICT utilization, unavailability of health information technology tools, lack of constant power supply Based on the findings of the study the it was recommended that health policy makers, hospital managements and nurse leaders should ensure that electronic health information technology are utilized in healthcare service at UCTH, Calabar.
{"title":"Utilization Of Health Information Technology In Provision Of Maternal And Child Health Care Among Nurses In The University Of Calabar Teaching Hospital, Calabar","authors":"A. Mathias, Aduaka Oluchukwu Stella, Enang Kingsley Oju, Agba, Affiong Mathias,","doi":"10.4314/gjpas.v28i2.11","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.11","url":null,"abstract":"This study was assessed utilization of health information technology in provision of maternal and child health care among nurses in the University of Calabar Teaching Hospital, Calabar. The research design employed for the study was descriptive survey design. The sample of one hundred and ninety-six (196) registered nurses/midwives from the population of nurses providing maternal and child healthcare in maternity ward, children’s ward, pediatric ward, labour ward, antenatal clinic and postnatal clinic at UCTH, Calabar using simple random sampling technique. The instrument of data collection was a validated structured questionnaire. Data collected were analyzed using descriptive statistic, charts, frequencies tables and percentages. The findings of the study revealed that majority (87.2%) of nurses working in UCTH, Calabar use paper based routine health information system. The factors inhibiting utilization of health information technology among nurses to deliver maternal and child healthcare in UCTH, Calabar include: inadequate knowledge of informatics, lack of comprehensive training of nurses on ICT utilization, unavailability of health information technology tools, lack of constant power supply Based on the findings of the study the it was recommended that health policy makers, hospital managements and nurse leaders should ensure that electronic health information technology are utilized in healthcare service at UCTH, Calabar. \u0000 ","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78944120","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}
Ibode R.T., T. A. A.,, Afeye A. F., Anifowose O. T., Owolola O. I., Ogidan O. A.
Due to the high rate of suicide all over the world resulting in about 800,000 people dying by suicide each year. The instances where suicide victims constantly publish suicide messages deliberately to express their feelings on social media, there is need to address suicide issues, and how suicide can be prevented. Therefore, as a solution to this, there is need to create a model that classifies these users" social media posts and identify users with suicidal ideations, so as to prevent future suicide cases by getting the identified users the necessary help needed. The study adopted a binary classification of a suicide-related tweet with respect to age 15 up till 29 years, on a document-level basis. A machine learning approach was employed to solve the problem of tweet classification and predictions. The dataset was generated from a Twitter API. It was observed that suicidal issues are rampant among the young adult, which need urgent attention. The paper recommended that timely intervention should be provided so as to reduce suicidal victims and preserve the future of young adults.
{"title":"Assessment Of The Prevalence Of Suicide Among Young Adults Using Machine Learning","authors":"Ibode R.T., T. A. A.,, Afeye A. F., Anifowose O. T., Owolola O. I., Ogidan O. A.","doi":"10.4314/gjpas.v28i2.7","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.7","url":null,"abstract":"Due to the high rate of suicide all over the world resulting in about 800,000 people dying by suicide each year. The instances where suicide victims constantly publish suicide messages deliberately to express their feelings on social media, there is need to address suicide issues, and how suicide can be prevented. Therefore, as a solution to this, there is need to create a model that classifies these users\" social media posts and identify users with suicidal ideations, so as to prevent future suicide cases by getting the identified users the necessary help needed. The study adopted a binary classification of a suicide-related tweet with respect to age 15 up till 29 years, on a document-level basis. A machine learning approach was employed to solve the problem of tweet classification and predictions. The dataset was generated from a Twitter API. \u0000It was observed that suicidal issues are rampant among the young adult, which need urgent attention. The paper recommended that timely intervention should be provided so as to reduce suicidal victims and preserve the future of young adults.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88391826","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}
This research used points extracted from high-resolution DEMs (1m) to investigate the impact of resolution, interpolation method and topography on the accuracy of drainage network extraction. The investigation was conducted by evaluating the accuracy of the estimations of streams length, streams number, drainage density, and the Longitudinal Root Mean Square Error (LRMSE) of the extracted drainage networks from different DEMs interpolated using Topo to raster, Natural Neighbor (NN), kriging and IDW interpolation methods at 5, 10, 15 and 20m resolutions over moderate, steep, and gentle slope terrain. Each evaluation conducted yielded a different result, but the accuracy of the streams length estimation for most of the DEMs at all the sites increases with an increase in streams order. The total lengths of all the streams of each of the extracted networks at gentle and steep slope sites are shorter than those of the corresponding reference networks though, 15 and 20m kriging and IDW DEMs created longer streams at the moderate slope site. IDW DEMs have proven reliable for streams length estimation while Topo to raster 5, 10, and 15m for streams number estimation. In general, N.N. extracted networks are the only networks that show consistency in the streams length and number estimations, drainage density estimation as well as in LRMSE and DEM RMSE computation at all the resolutions and for all the sites. Therefore, the accuracy of N.N. DEMs and their derivatives do not rapidly change with change in resolution, especially between 5 and 20m at all (steep, gentle and moderate) terrain types.
本研究利用高分辨率dem (1m)提取的点，研究分辨率、插值方法和地形对水系网提取精度的影响。通过对不同dem在5、10、15和20米分辨率下采用Topo to raster、Natural Neighbor (NN)、kriging和IDW插值方法插值后提取的流域网络在中陡缓坡地形上的河流长度、河流数量、排水密度和纵向均方根误差(LRMSE)的估计精度进行评估。每次评估的结果都不同，但所有站点的大多数dem的流长度估计的准确性随着流顺序的增加而增加。缓坡和陡坡站点各提取网络的所有水流总长度均短于相应参考网络，而中等坡度站点的kriging和IDW dem分别为15和20m，其水流长度较长。IDW dms已被证明可以可靠地进行流长度估计，而Topo到栅格5,10和15m用于流数估计。总的来说，nnn提取的网络是唯一在所有分辨率和所有站点的河流长度和数量估计、排水密度估计以及LRMSE和DEM RMSE计算中显示一致性的网络。因此，n - n - dem及其导数的精度不会随着分辨率的变化而迅速变化，特别是在5 - 20m(陡峭、平缓和中等)地形类型之间。
{"title":"An Assessment Of The Impact Of Dem Interpolation Technique, Resolution, And Terrain Type On The Extraction Of Drainage Network","authors":"A. J, Zubairu Mohammad","doi":"10.4314/gjpas.v28i2.3","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.3","url":null,"abstract":"This research used points extracted from high-resolution DEMs (1m) to investigate the impact of resolution, interpolation method and topography on the accuracy of drainage network extraction. The investigation was conducted by evaluating the accuracy of the estimations of streams length, streams number, drainage density, and the Longitudinal Root Mean Square Error (LRMSE) of the extracted drainage networks from different DEMs interpolated using Topo to raster, Natural Neighbor (NN), kriging and IDW interpolation methods at 5, 10, 15 and 20m resolutions over moderate, steep, and gentle slope terrain. Each evaluation conducted yielded a different result, but the accuracy of the streams length estimation for most of the DEMs at all the sites increases with an increase in streams order. The total lengths of all the streams of each of the extracted networks at gentle and steep slope sites are shorter than those of the corresponding reference networks though, 15 and 20m kriging and IDW DEMs created longer streams at the moderate slope site. IDW DEMs have proven reliable for streams length estimation while Topo to raster 5, 10, and 15m for streams number estimation. In general, N.N. extracted networks are the only networks that show consistency in the streams length and number estimations, drainage density estimation as well as in LRMSE and DEM RMSE computation at all the resolutions and for all the sites. Therefore, the accuracy of N.N. DEMs and their derivatives do not rapidly change with change in resolution, especially between 5 and 20m at all (steep, gentle and moderate) terrain types.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90770638","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}
V. Bakare, Mohammed Sani Abdulsalami, Thankgod Ositadinma Ndibe, Chizoba Kenneth Ejuama, T. Effiong, Kereakede Ebipade
Microorganisms such as fungi can fragment carbon compounds by hydrolytic enzymes. The filamentous fungus, Aspergillus niger is now mostly considered because of its ubiquitous nature, non-fastidious nutritional requirements and it is classified generally as safe. This study was aimed at the production of cellulosic enzymes by A. niger and hydrolytic degradation of cellulosic materials by these enzymes. Standard methods were employed in soil samples collection, isolation of A. niger from the soils and their screening for enzyme production. Results showed that the A. niger isolates exhibited considerable activities of degrading and hydrolyzing cellulose in the agar media. The highest FPase, cellulase and xylanase activities were obtained from white saw dust with concentrations of 0.4059 U/ml, 0.7695U/ml and 1.3488 U/ml respectively. Also, results showed high enzyme activity at pH 6 (0.52U/ml) and temperature of 30ºC (0.72U/ml). Acid hydrolysis of the cellulosic substrates resulted to the release of 6.5% total sugar from white sawdust. The findings of this study revealed that the enzymes produced by A. niger hydrolyzed cellulosic materials but acid is more efficient than the enzymes in the hydrolysis and release of total sugar from cellulosic materials. This study recommends that cellulolytic enzymes used in the industries should be produced locally using filamentous fungus such as Aspergillus niger and cellulosic materials as carbon source.
{"title":"Production Of Cellulosic Enzymes By Aspergillus Niger And Hydrolysis Of Cellulosic Materials","authors":"V. Bakare, Mohammed Sani Abdulsalami, Thankgod Ositadinma Ndibe, Chizoba Kenneth Ejuama, T. Effiong, Kereakede Ebipade","doi":"10.4314/gjpas.v28i2.1","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.1","url":null,"abstract":"Microorganisms such as fungi can fragment carbon compounds by hydrolytic enzymes. The filamentous fungus, Aspergillus niger is now mostly considered because of its ubiquitous nature, non-fastidious nutritional requirements and it is classified generally as safe. This study was aimed at the production of cellulosic enzymes by A. niger and hydrolytic degradation of cellulosic materials by these enzymes. Standard methods were employed in soil samples collection, isolation of A. niger from the soils and their screening for enzyme production. Results showed that the A. niger isolates exhibited considerable activities of degrading and hydrolyzing cellulose in the agar media. The highest FPase, cellulase and xylanase activities were obtained from white saw dust with concentrations of 0.4059 U/ml, 0.7695U/ml and 1.3488 U/ml respectively. Also, results showed high enzyme activity at pH 6 (0.52U/ml) and temperature of 30ºC (0.72U/ml). Acid hydrolysis of the cellulosic substrates resulted to the release of 6.5% total sugar from white sawdust. The findings of this study revealed that the enzymes produced by A. niger hydrolyzed cellulosic materials but acid is more efficient than the enzymes in the hydrolysis and release of total sugar from cellulosic materials. This study recommends that cellulolytic enzymes used in the industries should be produced locally using filamentous fungus such as Aspergillus niger and cellulosic materials as carbon source.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90546073","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}
This paper examines winding number of a closed planar curve through various aspects. It is related to a range on an arc in the complex plane and a point not in the range. Functions of such natures are considered to be continuous real-valued functions. Conclusion was drawn by naming a number of areas of applications.
{"title":"Aninvestigation Of Winding Number Of A Closed Planar Curve","authors":"W. Obeng-Denteh, Nicholas Tetteh Ofoe","doi":"10.4314/gjpas.v28i2.6","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.6","url":null,"abstract":"This paper examines winding number of a closed planar curve through various aspects. It is related to a range on an arc in the complex plane and a point not in the range. Functions of such natures are considered to be continuous real-valued functions. Conclusion was drawn by naming a number of areas of applications.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78512908","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}
Experiments to measure a single physical quantity often produce several estimates based on the same data, and which are hence correlated. We describe how to combine these correlated estimates in order to provide the best single answer, and also how to check whether the correlated estimates are mutually consistent. We discuss the properties of our technique, and illustrate its application by using it for a specific experiment which measured the strong coupling constant .In this work, we computed the mean value of the strong coupling constant by relying on the three measurement values of ATLAS. We present a method to calculate the mean value of the strong coupling constant and the uncertainty about this value at a centre of-mass energy 7Tev, 8Tev and 13Tev based on the results obtained in ref[1]. We get the result , we will compare it with the result obtained by the authors of ref[1], which is .
{"title":"On The Calculation Of The Average Value Of The Strong Coupling Constant α_s, Using The Best Linear Unbiased Estimator (Blue) Method","authors":"Laamri Kallouche","doi":"10.4314/gjpas.v28i2.13","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.13","url":null,"abstract":"Experiments to measure a single physical quantity often produce several estimates based on the same data, and which are hence correlated. We describe how to combine these correlated estimates in order to provide the best single answer, and also how to check whether the correlated estimates are mutually consistent. \u0000We discuss the properties of our technique, and illustrate its application by using it for a specific experiment which measured the strong coupling constant .In this work, we computed the mean value of the strong coupling constant by relying on the three measurement values of ATLAS. \u0000We present a method to calculate the mean value of the strong coupling constant and the uncertainty about this value at a centre of-mass energy 7Tev, 8Tev and 13Tev based on the results obtained in ref[1]. \u0000We get the result , we will compare it with the result obtained by the authors of ref[1], which is .","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83408906","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}
Food vendors with poor knowledge and practice of food hygiene are potential source of food contamination and food borne diseases in institutions of learning in developing countries. The study was conducted to appraise the knowledge and practice of food hygiene among food vendors in the University of Calabar, Calabar, Nigeria using a cross - sectional descriptive survey as the research design. A total of sixty – seven food vendors were purposely recruited for the study. Researcher’s developed and validated questionnaire was used for data collection. Collated data were sorted, coded, and analysed with SPSS software. The results were described using frequency counts and percentages. Findings from the study indicated that majority of the respondents 57 (85.1%) had adequate knowledge of food hygiene and the same percentage also engaged in good food hygienic practices. The result also revealed that, there was a statistically significant relationship between knowledge and practice of food hygiene (=28.134; p<0.05). Thus, the researchers suggested continuous education of food vendors on the need to maintain hygiene practices during preparation and handling of food to safeguard the health of the students.
{"title":"Appraisal Of Knowledge And Practice Of Food Hygiene Among Food Vendors In University Of Calabar, Calabar, Nigeria","authors":"Easter Chukwudi Osuchukwu, Hannah Thompson Udom","doi":"10.4314/gjpas.v28i2.8","DOIUrl":"https://doi.org/10.4314/gjpas.v28i2.8","url":null,"abstract":"Food vendors with poor knowledge and practice of food hygiene are potential source of food contamination and food borne diseases in institutions of learning in developing countries. The study was conducted to appraise the knowledge and practice of food hygiene among food vendors in the University of Calabar, Calabar, Nigeria using a cross - sectional descriptive survey as the research design. A total of sixty – seven food vendors were purposely recruited for the study. Researcher’s developed and validated questionnaire was used for data collection. Collated data were sorted, coded, and analysed with SPSS software. The results were described using frequency counts and percentages. Findings from the study indicated that majority of the respondents 57 (85.1%) had adequate knowledge of food hygiene and the same percentage also engaged in good food hygienic practices. The result also revealed that, there was a statistically significant relationship between knowledge and practice of food hygiene (=28.134; p<0.05). Thus, the researchers suggested continuous education of food vendors on the need to maintain hygiene practices during preparation and handling of food to safeguard the health of the students.","PeriodicalId":12516,"journal":{"name":"Global Journal of Pure and Applied Sciences","volume":"81 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83535311","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：