Bi25FeO40/g-C3N4 composites were synthesized for dechlorination of 2-chlorophenol (2-CP). The characteristic of the obtained products was studied using the X-ray diffraction (XRD), (FESEM) scanning electron microscopy, UV-vis reflectance. The effects of g-C3N4 content, photocatalyst dosage, solution pH, H2O2 on the dechlorination efficiency were investigated, in addition to the reusability of the nanocomposites. The results showed that increasing content of Bi25FeO40 in nanocomposites, from 10 to 30 wt.%, greatly increased the dechlorination efficiency. Bi25FeO40/g-C3N4 20wt.% and initial pH below 6.0 was the optimal conditions for the catalytic dechlorination of 2-CP. About 94.5% of 2-CP were completely removed after 150 minutes reaction at initial pH value of 6.0. The composites were easily separated from the solution by an applied magnetic field. The removal efficiency of 2-CP slightly decreased to 90% when the catalyst was reused in 4 runs. Therefore, Bi25FeO40/g-C3N4 composites can be considered as a promising method for remediation of pollution by 2-CP.
{"title":"Bi25FeO40 microspheres loading on g-C3N4 for high efficiency pollutants photodegradation","authors":"X. Nguyen","doi":"10.22161/ijeab.82.15","DOIUrl":"https://doi.org/10.22161/ijeab.82.15","url":null,"abstract":"Bi25FeO40/g-C3N4 composites were synthesized for dechlorination of 2-chlorophenol (2-CP). The characteristic of the obtained products was studied using the X-ray diffraction (XRD), (FESEM) scanning electron microscopy, UV-vis reflectance. The effects of g-C3N4 content, photocatalyst dosage, solution pH, H2O2 on the dechlorination efficiency were investigated, in addition to the reusability of the nanocomposites. The results showed that increasing content of Bi25FeO40 in nanocomposites, from 10 to 30 wt.%, greatly increased the dechlorination efficiency. Bi25FeO40/g-C3N4 20wt.% and initial pH below 6.0 was the optimal conditions for the catalytic dechlorination of 2-CP. About 94.5% of 2-CP were completely removed after 150 minutes reaction at initial pH value of 6.0. The composites were easily separated from the solution by an applied magnetic field. The removal efficiency of 2-CP slightly decreased to 90% when the catalyst was reused in 4 runs. Therefore, Bi25FeO40/g-C3N4 composites can be considered as a promising method for remediation of pollution by 2-CP.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85893146","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}
Mohamadou Adamou, M. Maiga, O. Cissé, J. Sagara, Yaya Ouattara
In Bamako, the flow of household waste and its typology are little known. In order to set up a sustainable management system for the city's garbage, it is nevertheless important to know the quantities, natures and dimensions of the objects that make up the garbage. This study, which began in 2017, consisted of characterizing the garbage collected at the household level in Bamako using the MODECOM method modified to adapt it to the Malian context. The objective of this study was to propose a method intended to obtain solid results on the characteristics of household waste produced in Bamako in order to build adapted collection and recovery strategies. The results, obtained from a sample of 270 households in the 6 communes of Bamako and 3 neighborhoods of different socio-economic levels per commune, showed that the average ratio of household waste produced in Bamako is about 0.28 Kg per inhabitant per day. The category of fines is the most important, with an average daily production of 2.45 kg for a household with an average of 20.5 inhabitants. Putrescibles come in second place. Their production represents 41% of the average amount of garbage generated in a high standard household. It represents the main biodegradable category of garbage. Fines, which are mostly sand, charcoal and ash, accounted for 37 percent of the waste generated by households of the same type. The particle size sorting, which can help to choose suitable industrial sorting tools, shows that the fraction of medium-sized garbage is the most abundant. The data from the characterization of garbage would allow the development of all forms of garbage management strategies, especially for its collection and recovery.
{"title":"Experimental study of the characterization of household waste in Bamako, Mali","authors":"Mohamadou Adamou, M. Maiga, O. Cissé, J. Sagara, Yaya Ouattara","doi":"10.22161/ijeab.82.17","DOIUrl":"https://doi.org/10.22161/ijeab.82.17","url":null,"abstract":"In Bamako, the flow of household waste and its typology are little known. In order to set up a sustainable management system for the city's garbage, it is nevertheless important to know the quantities, natures and dimensions of the objects that make up the garbage. This study, which began in 2017, consisted of characterizing the garbage collected at the household level in Bamako using the MODECOM method modified to adapt it to the Malian context. The objective of this study was to propose a method intended to obtain solid results on the characteristics of household waste produced in Bamako in order to build adapted collection and recovery strategies. The results, obtained from a sample of 270 households in the 6 communes of Bamako and 3 neighborhoods of different socio-economic levels per commune, showed that the average ratio of household waste produced in Bamako is about 0.28 Kg per inhabitant per day. The category of fines is the most important, with an average daily production of 2.45 kg for a household with an average of 20.5 inhabitants. Putrescibles come in second place. Their production represents 41% of the average amount of garbage generated in a high standard household. It represents the main biodegradable category of garbage. Fines, which are mostly sand, charcoal and ash, accounted for 37 percent of the waste generated by households of the same type. The particle size sorting, which can help to choose suitable industrial sorting tools, shows that the fraction of medium-sized garbage is the most abundant. The data from the characterization of garbage would allow the development of all forms of garbage management strategies, especially for its collection and recovery.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87336818","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}
Euphorbia hirta which is commonly known as "patikan kebo" is small herb which gives milky latex. This study aims to determine the effect of E. hirta extract in reducing the intensity of leaf and fruit pest attacks on cucumber plants Cucumis sativus Linn. The results of this study showed that all treatments with this extract were able to suppress the intensity of pest attacks on cucumber plants and had a significant effect on reducing the intensity of pest attacks on cucumber plants. The best concentration that can reduce the intensity of these pest attacks is the treatment of 10% can reduce the intensity of leaf pest attacks on cucumber plants up to 4.64%. The intensity of pest attacks on cucumbers only occurred in the control and 2% extract treatment with percentages of damage intensity to cucumbers of 9.38% and 3.13%.
{"title":"Effect of Extract Euphorbia hirta Linn. Against Leaf and Fruit Pests on Plants Cucumber (Cucumis sativus Linn.)","authors":"A. Rahmah","doi":"10.22161/ijeab.82.11","DOIUrl":"https://doi.org/10.22161/ijeab.82.11","url":null,"abstract":"Euphorbia hirta which is commonly known as \"patikan kebo\" is small herb which gives milky latex. This study aims to determine the effect of E. hirta extract in reducing the intensity of leaf and fruit pest attacks on cucumber plants Cucumis sativus Linn. The results of this study showed that all treatments with this extract were able to suppress the intensity of pest attacks on cucumber plants and had a significant effect on reducing the intensity of pest attacks on cucumber plants. The best concentration that can reduce the intensity of these pest attacks is the treatment of 10% can reduce the intensity of leaf pest attacks on cucumber plants up to 4.64%. The intensity of pest attacks on cucumbers only occurred in the control and 2% extract treatment with percentages of damage intensity to cucumbers of 9.38% and 3.13%.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82480465","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}
Codium sp. seaweed cultivation trials. Which is different seed weights on the growth media in the form of super intensive shrimp pond liquid waste. The research aims to analyze the ability of Codium sp. absorbing nitrogen and phosphorus from shrimp culture media. The study was conducted for 45 days at the Experimental Pond Installation (ITP) Research and Development Center for Brackish Water Aquaculture (BPPBAP), Punaga Village, Mangarabombang District, Takalar Regency. A plastic box is used by container in this reseach measuring 87 cm x 64 cm with a water level of 40. The study consisted of 4 weight treatments of Codium sp. namely A (50 g), B (100 g), C (50 g) and D (200 g) and each treatment was repeated three times. Data of reseach is analyzed by ANOVA with 95% confidence level and further W-Tuckey test using SPSS version 23 software. The results showed that there was an effect of absorption by seaweed Codium sp. with a seed weight of 200 g resulted in the highest N-total absorption rate of 0.1133±0.01155%, while the highest P-Total absorption rate was at a weight of 100 g with a value of 0.00500±0.002646%.
{"title":"Analysis of Nitrogen and Phosphorus Content of Seaweed Codium sp. in Super Intensive Shrimp Pond Liquid Waste","authors":"F. Nur, Irma Yulia Madjid, Darmawati.R Darmawati.R, Indah Rahayu, Reski Fitriah, Chairul Rusyd Mahfud, Fajriani Fajriani","doi":"10.22161/ijeab.81.6","DOIUrl":"https://doi.org/10.22161/ijeab.81.6","url":null,"abstract":"Codium sp. seaweed cultivation trials. Which is different seed weights on the growth media in the form of super intensive shrimp pond liquid waste. The research aims to analyze the ability of Codium sp. absorbing nitrogen and phosphorus from shrimp culture media. The study was conducted for 45 days at the Experimental Pond Installation (ITP) Research and Development Center for Brackish Water Aquaculture (BPPBAP), Punaga Village, Mangarabombang District, Takalar Regency. A plastic box is used by container in this reseach measuring 87 cm x 64 cm with a water level of 40. The study consisted of 4 weight treatments of Codium sp. namely A (50 g), B (100 g), C (50 g) and D (200 g) and each treatment was repeated three times. Data of reseach is analyzed by ANOVA with 95% confidence level and further W-Tuckey test using SPSS version 23 software. The results showed that there was an effect of absorption by seaweed Codium sp. with a seed weight of 200 g resulted in the highest N-total absorption rate of 0.1133±0.01155%, while the highest P-Total absorption rate was at a weight of 100 g with a value of 0.00500±0.002646%.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"77 12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87882572","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}
S. Das, K. Bhilegaonkar, H. Aithal, A. Bhalerao, Sanghratna Bahire
Survey of farmer was done to record the farmer's profile, livestock production system, socio - economic condition in pre constructed preforms for the selection of farmers. Survey revealed that average annual income of farmers at the beginning of intervention at Traimbakeshwar and Ambegaon taluka was Rs. 25,270/- and Rs. 26,530/-respectively. So, based on survey, 14 SC and 20 ST, altogether 34 resource poor farmers were selected randomly. Necessary training was imparted to the farmers on goat farming. Farmers were given one unit of adult Osmanabadi goat i.e. one male and four female goats, 200 kg pelleted goat feed, 2 kg mineral mixture, feeder, waterer and turpolin sheet. Goats were maintained in semi intensive system of management. Farmers renovated the existing goat shed with low cost locally available materials. Farmers were feeding maize, marvel grass, guinea grass, hybrid napier etc. as green fodder. Supplied pelleted feed was also provided @ 100 g twice daily to each goat. Routine deworming and vaccination was done. Animals were monitored regularly. The data on performance, mortality, disposal of goats were collected. Average weight of male and female adult Osmanabadi goats was recorded to be 23.470 ± 0.872 kg and 25.216 ± 0.691 kg respectively. Average birth weight was recorded to be 2.580 ± 0.234 kg. Average daily gain of kids was recorded to be 108.45 ± 10.21 g / day. So, far 48 kids were born from 27 kiddings and average kidding per cent was triplet 7.41 %, twinning 62.96 % and single 29.63 %.
对农户进行调查，记录农户的个人资料、畜牧生产制度、社会经济状况等，为农户的选择提供依据。调查显示，在Traimbakeshwar和Ambegaon taluka，干预开始时农民的平均年收入分别为25,270卢比/年和26,530卢比/年。因此，在调查的基础上，随机抽取了14名农民和20名农民，共34名资源贫困农民。对农民进行了必要的山羊养殖培训。农民得到1只成年Osmanabadi山羊，即1只公山羊和4只母山羊，200公斤颗粒山羊饲料，2公斤矿物混合物，饲料，水和turpolin片。山羊采用半集约化管理方式饲养。农民们用当地可获得的低成本材料翻新了现有的羊棚。农民用玉米、奇异草、豚草、杂交豚草等作为绿色饲料。每只山羊每天两次，每次100克颗粒饲料。常规驱虫和接种疫苗。对动物进行定期监测。收集了山羊的生产性能、死亡率和处理数据。公山羊和母山羊的平均体重分别为23.470±0.872 kg和25.216±0.691 kg。平均出生体重为2.580±0.234 kg。儿童平均日增重108.45±10.21 g / d。到目前为止，共有27对夫妇生下48个孩子，其中三胞胎占7.41%，双胞胎占62.96%，单胞胎占29.63%。
{"title":"Goat Farming for the Economic Upliftment of Resource Poor Farmers of Maharashtra","authors":"S. Das, K. Bhilegaonkar, H. Aithal, A. Bhalerao, Sanghratna Bahire","doi":"10.22161/ijeab.83.2","DOIUrl":"https://doi.org/10.22161/ijeab.83.2","url":null,"abstract":"Survey of farmer was done to record the farmer's profile, livestock production system, socio - economic condition in pre constructed preforms for the selection of farmers. Survey revealed that average annual income of farmers at the beginning of intervention at Traimbakeshwar and Ambegaon taluka was Rs. 25,270/- and Rs. 26,530/-respectively. So, based on survey, 14 SC and 20 ST, altogether 34 resource poor farmers were selected randomly. Necessary training was imparted to the farmers on goat farming. Farmers were given one unit of adult Osmanabadi goat i.e. one male and four female goats, 200 kg pelleted goat feed, 2 kg mineral mixture, feeder, waterer and turpolin sheet. Goats were maintained in semi intensive system of management. Farmers renovated the existing goat shed with low cost locally available materials. Farmers were feeding maize, marvel grass, guinea grass, hybrid napier etc. as green fodder. Supplied pelleted feed was also provided @ 100 g twice daily to each goat. Routine deworming and vaccination was done. Animals were monitored regularly. The data on performance, mortality, disposal of goats were collected. Average weight of male and female adult Osmanabadi goats was recorded to be 23.470 ± 0.872 kg and 25.216 ± 0.691 kg respectively. Average birth weight was recorded to be 2.580 ± 0.234 kg. Average daily gain of kids was recorded to be 108.45 ± 10.21 g / day. So, far 48 kids were born from 27 kiddings and average kidding per cent was triplet 7.41 %, twinning 62.96 % and single 29.63 %.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"38 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85041224","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}
Global climate is warming, and the effects of climate change are associated with many causes; among them are the Greenhouse gas emissions from motor vehicles and factories. The study of exposure to air pollution related to road traffic in Annaba’s region is based on the results of air analyses, which shows that air temperatures are frail, accompanied by a very high humidity due mainly to the presence of the sea and many bodies of water (Fetzara Lake). This can allow the accumulation of certain pollutants such as carbon monoxide and dust (contents of CO and dust exceed the WHO standards), while some pollutants are present in small to negligible quantities such as NO, NO2, and SO. The air quality of Annaba and its surroundings (El Bouni, Sidi Ammar) can be generally described as good. Nevertheless, the existence of strong pollution due to the dust is noted close to the industrial complexes specially El Hadjar.
{"title":"Exploration of Road Traffic Emissions and Their Impact on Air Quality in and around of Annaba City (North East Algeria)","authors":"Samia Halimi, Nour El Houda Mizane","doi":"10.22161/ijeab.85.16","DOIUrl":"https://doi.org/10.22161/ijeab.85.16","url":null,"abstract":"Global climate is warming, and the effects of climate change are associated with many causes; among them are the Greenhouse gas emissions from motor vehicles and factories. The study of exposure to air pollution related to road traffic in Annaba’s region is based on the results of air analyses, which shows that air temperatures are frail, accompanied by a very high humidity due mainly to the presence of the sea and many bodies of water (Fetzara Lake). This can allow the accumulation of certain pollutants such as carbon monoxide and dust (contents of CO and dust exceed the WHO standards), while some pollutants are present in small to negligible quantities such as NO, NO2, and SO. The air quality of Annaba and its surroundings (El Bouni, Sidi Ammar) can be generally described as good. Nevertheless, the existence of strong pollution due to the dust is noted close to the industrial complexes specially El Hadjar.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136367290","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 explores the profound narrative layers within Chinua Achebe's seminal work, Things Fall Apart, shedding light on the intricate dynamics of pre- and post-colonial Igbo society. Through a meticulous examination of the vibrant setting of Umuofia, the analysis uncovers the rich cultural tapestry depicted in the novel and its subsequent transformation under colonial influence. The paper seeks to foster a nuanced understanding of African history, urging readers to acknowledge the complex interplay of traditions and values that define the African heritage, thus challenging single narratives and reshaping public perception of a historically vibrant and multifaceted continent.
{"title":"Dissecting Cultural Transition: A Deep Dive into Chinua Achebe’s Things Fall Apart","authors":"Sangeetha M G","doi":"10.22161/ijeab.85.8","DOIUrl":"https://doi.org/10.22161/ijeab.85.8","url":null,"abstract":"This study explores the profound narrative layers within Chinua Achebe's seminal work, Things Fall Apart, shedding light on the intricate dynamics of pre- and post-colonial Igbo society. Through a meticulous examination of the vibrant setting of Umuofia, the analysis uncovers the rich cultural tapestry depicted in the novel and its subsequent transformation under colonial influence. The paper seeks to foster a nuanced understanding of African history, urging readers to acknowledge the complex interplay of traditions and values that define the African heritage, thus challenging single narratives and reshaping public perception of a historically vibrant and multifaceted continent.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135843383","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}
A. Saitama, Akbar Hidayat Zaini, Eggy Akhmad Armandoni
Tomatoes are one of horticultural commodities which have many benefits for the community, including spices, fruits and vegetables. Tomato cultivation techniques using fruit shade and thinning can be done to overcome the constraints of the mismatch between the quality of products produced by farmers and the quality of products desired by community. Shade has a function to create environmental conditions in accordance with plant conditions, while fruit thinning has a function to maximize the results of photosynthesis so that it can improve the quality of tomatoes. This study aimed to determine the effect of shade and thinning on the result and quality of tomatoes. The study was conducted from January to May 2022 in the Malang, East Java. This research used a Completely Randomized Design with Nested Pattern which consisted of 12 treatments with 3 replications, so that from 36 units of combination treatment. The treatment used was a combination of the use of fruit shade (0,25 and 50%) and thinning intensity (0,3,4 and 5). The analysis of the data used was the F level test of 5%. If the 5% F test had a significant effect, then it was followed by a 5% HSD test. The results showed that the use of fruit shade and thinning significantly affectd the parameters of flower emergence, fruit weight per hectare, fruit weight per fruit, fruit volume, fruit diameter, and no significant effect on the parameters of total dissolved solids.
{"title":"Effect of Shade and Thinning on Yield and Chemical Content of Tomato (Lycopersicum esculentum Mill.)","authors":"A. Saitama, Akbar Hidayat Zaini, Eggy Akhmad Armandoni","doi":"10.22161/ijeab.84.8","DOIUrl":"https://doi.org/10.22161/ijeab.84.8","url":null,"abstract":"Tomatoes are one of horticultural commodities which have many benefits for the community, including spices, fruits and vegetables. Tomato cultivation techniques using fruit shade and thinning can be done to overcome the constraints of the mismatch between the quality of products produced by farmers and the quality of products desired by community. Shade has a function to create environmental conditions in accordance with plant conditions, while fruit thinning has a function to maximize the results of photosynthesis so that it can improve the quality of tomatoes. This study aimed to determine the effect of shade and thinning on the result and quality of tomatoes. The study was conducted from January to May 2022 in the Malang, East Java. This research used a Completely Randomized Design with Nested Pattern which consisted of 12 treatments with 3 replications, so that from 36 units of combination treatment. The treatment used was a combination of the use of fruit shade (0,25 and 50%) and thinning intensity (0,3,4 and 5). The analysis of the data used was the F level test of 5%. If the 5% F test had a significant effect, then it was followed by a 5% HSD test. The results showed that the use of fruit shade and thinning significantly affectd the parameters of flower emergence, fruit weight per hectare, fruit weight per fruit, fruit volume, fruit diameter, and no significant effect on the parameters of total dissolved solids.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78040672","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}
In Mali, with strong population growth, forest resources are under multiple pressures, the most important of which are agricultural clearing, land speculation and the consumption of wood and/or charcoal as energy fuel. Studies have shown that this is a major problem. According to the FAO (2020, p 21), its production from 2010 to 2018 increased from 137,907 to 379,124 tons against 79,221 Qm to 334,454 Qm between 2008-2017 (MEADD, 2018, pp 41 and 73). The objective aims to demonstrate the challenges of charcoal consumption as fuel in the Baco-Djicoroni district of the Bamako district in order to raise the awareness of decision-makers. The sampling involved 190 people (160 randomly selected households, 24 traders/wholesalers and 6 technical service agents). The methodology was based on the exploitation of documents, the field survey and the analysis and processing of data using Word, Excel and SPSS software. The analysis of the results records 12 charcoal sales depot sites in Baco-Djicoroni with a sales capacity of 7750 bags per week whose households of 10 to 14 people are the biggest consumers, us 89 bags per month. In a context of climate change and forest preservation, the development of a strategy is necessary and alternatives to charcoal remains the promotion of renewable and/or alternative energies.
{"title":"Supply of urban centers with energy resources and the need to preserve the environment case of coal consumption at Baco-Djicoroni","authors":"Fatoumata Maiga, I. Traoré, Hamadoun Traore","doi":"10.22161/ijeab.81.1","DOIUrl":"https://doi.org/10.22161/ijeab.81.1","url":null,"abstract":"In Mali, with strong population growth, forest resources are under multiple pressures, the most important of which are agricultural clearing, land speculation and the consumption of wood and/or charcoal as energy fuel. Studies have shown that this is a major problem. According to the FAO (2020, p 21), its production from 2010 to 2018 increased from 137,907 to 379,124 tons against 79,221 Qm to 334,454 Qm between 2008-2017 (MEADD, 2018, pp 41 and 73). The objective aims to demonstrate the challenges of charcoal consumption as fuel in the Baco-Djicoroni district of the Bamako district in order to raise the awareness of decision-makers. The sampling involved 190 people (160 randomly selected households, 24 traders/wholesalers and 6 technical service agents). The methodology was based on the exploitation of documents, the field survey and the analysis and processing of data using Word, Excel and SPSS software. The analysis of the results records 12 charcoal sales depot sites in Baco-Djicoroni with a sales capacity of 7750 bags per week whose households of 10 to 14 people are the biggest consumers, us 89 bags per month. In a context of climate change and forest preservation, the development of a strategy is necessary and alternatives to charcoal remains the promotion of renewable and/or alternative energies.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85596550","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}
S. Geetha, K. Kumar, L. Arul, E. Kokiladevi, P. Balasubramanian, D. Sudhakar
A phyA was cloned from Aspergillus niger by reverse transcription polymerase chain reaction. The amplified 1404 bp fragment was cloned in a T/A cloning vector and confirmed by sequencing. The isolated phytase gene showed 99.0 % sequence identity at nucleotide and protein level with Aspergillus niger CBS 513.88 phytase. The amino acid sequence from the phyA cDNA contained the consensus motifs, RHGXRXP and HD which are conserved among histidine acid phosphatases. The phytase cDNA was subcloned in pET28a(+) expression vector and expressed in E. coli. The expression of the gene was confirmed through SDS-PAGE analysis. A 52 kDa protein as per the calculated molecular mass of the translational product of phytase gene was observed in crude lysate of E. coli culture induced with IPTG. The protein was purified using nickel based His-bind resin column and checked on SDS-PAGE. The purified recombinant enzyme showed a single band of 52 kDa protein. The phytase activity of pET-phyA IPTG induced E. coli culture and purified phytase was 383.5 U/ml and 826.33 U/ml, respectively.
{"title":"Cloning of phytase gene from Aspergillus niger 563 and its expression in E.coli system","authors":"S. Geetha, K. Kumar, L. Arul, E. Kokiladevi, P. Balasubramanian, D. Sudhakar","doi":"10.22161/ijeab.81.5","DOIUrl":"https://doi.org/10.22161/ijeab.81.5","url":null,"abstract":"A phyA was cloned from Aspergillus niger by reverse transcription polymerase chain reaction. The amplified 1404 bp fragment was cloned in a T/A cloning vector and confirmed by sequencing. The isolated phytase gene showed 99.0 % sequence identity at nucleotide and protein level with Aspergillus niger CBS 513.88 phytase. The amino acid sequence from the phyA cDNA contained the consensus motifs, RHGXRXP and HD which are conserved among histidine acid phosphatases. The phytase cDNA was subcloned in pET28a(+) expression vector and expressed in E. coli. The expression of the gene was confirmed through SDS-PAGE analysis. A 52 kDa protein as per the calculated molecular mass of the translational product of phytase gene was observed in crude lysate of E. coli culture induced with IPTG. The protein was purified using nickel based His-bind resin column and checked on SDS-PAGE. The purified recombinant enzyme showed a single band of 52 kDa protein. The phytase activity of pET-phyA IPTG induced E. coli culture and purified phytase was 383.5 U/ml and 826.33 U/ml, respectively.","PeriodicalId":14038,"journal":{"name":"International Journal of Environment, Agriculture and Biotechnology","volume":"171 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88288262","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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