Journal of Sustainable Environmental最新文献

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Antibiotic Resistance and Susceptibility Profile, with Biofilm Forming Potential Of Clinically Isolated Enterococcus Specie from Blood and Urine Samples 临床分离的肠球菌在血液和尿液样本中的抗生素耐药性和药敏特征及生物膜形成潜力
Journal of Sustainable Environmental Pub Date : 2023-07-31 DOI: 10.58921/jse.02.01.036
Faryal Anjum, Asma Naim, Zeba Parveen Imran, Urooj Haroon
{"title":"Antibiotic Resistance and Susceptibility Profile, with Biofilm Forming Potential Of Clinically Isolated Enterococcus Specie from Blood and Urine Samples","authors":"Faryal Anjum, Asma Naim, Zeba Parveen Imran, Urooj Haroon","doi":"10.58921/jse.02.01.036","DOIUrl":"https://doi.org/10.58921/jse.02.01.036","url":null,"abstract":"Enterococcus spp. is Gram-positive cocci bacteria among the normal flora in human intestine. Common species are Enterococcus fecalis and Enterococcus faecium. They work as probiotics and help in digestion and immune system modulation. Enterococci are opportunistic pathogens and can cause nosocomial infections. Biofilm is one of the factors that facilitate the antibiotic resistance, which is complex EPS (exopolysaccharides) structure surrounding microbial cells, making them resistant from antimicrobial treatments. Due to acquisition of different virulence factors and resistance from antibiotics, infections of Enterococcus spp., have increased. In this study antibiotic resistance and sensitivity profile with their ability to form biofilm, has been determined. Human blood and urine samples were taken from Memon Medical Hospital Karachi. Culture and sensitivity test was performed for the major groups of antibiotics used for treating enterococcal infections with analysis of biofilm formation. Highest resistance was observed against the antibiotic levofloxacin 90% and all organisms were sensitive from linezolid 100%. Overall organisms were resistance from one and more antibiotics. All organisms were able to form biofilms as well. Antibiotic resistance has become an alarming challenge for the health care globally. Enterococcal resistance from major groups of antibiotics for their treatment has increased the rate of nosocomial infections.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135313538","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}
引用次数: 0
Particulate Matter Concentration in Ambient Air at Gulshan e Iqbal, Karachi 卡拉奇古尔山伊克巴尔地区空气中的颗粒物浓度
Journal of Sustainable Environmental Pub Date : 2023-07-31 DOI: 10.58921/jse.02.01.039
Fahad Muhammad Khan, Fariha Shafiq Khan, Naeem Akhtar Samoo, Abdullah Ismail
{"title":"Particulate Matter Concentration in Ambient Air at Gulshan e Iqbal, Karachi","authors":"Fahad Muhammad Khan, Fariha Shafiq Khan, Naeem Akhtar Samoo, Abdullah Ismail","doi":"10.58921/jse.02.01.039","DOIUrl":"https://doi.org/10.58921/jse.02.01.039","url":null,"abstract":"The aim of this study is to measure the PM concentration (PM2.5, PM10) at different times and at different locations of the Gulshan-e-Iqbal town and comparison of the obtained results with the permissible limits of Pak-EPA for assessment of the air quality. A total of 12 sampling locations were selected in different blocks of Gulshan-e-Iqbal town. The PM 2.5 concentration in the study area ranged from 47 to 81.3 µg/m3, with a mean value of 65.4 µg/m3. The results revealed that values of PM2.5 at all the sampling stations were above the permissible limits (35 µg/m3) set by Environmental Protection Agency Pakistan (Pak-EPA). The PM 10 concentration in the study area ranged from 55.6 to 99.0 µg/m3, with a mean value of 79.9 µg/m3. The results revealed that values of PM10 at all the sampling stations were within the permissible limits (150 µg/m3) set by Environmental Protection Agency Pakistan (Pak-EPA). The concentration of PM (PM2.5, PM10) was found to vary with time at all the sampling stations. Maximum concentrations were recorded at 2 PM and 7 PM while minimum concentrations were recorded at 12 AM. The worst air quality in terms of particulate matter concentration in the study area was observed at Block 11 of Gulshan-e-Iqbal, whereas better air quality in terms of PM was recorded at Block 7","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135313537","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}
引用次数: 0
Energy assessment of some nuts and dried fruits grown in Pakistan’s climate and their role for weight control management 巴基斯坦气候下生长的一些坚果和干果的能量评估及其在体重控制管理中的作用
Journal of Sustainable Environmental Pub Date : 2023-07-31 DOI: 10.58921/jse.02.01.038
Anila Sarwar, Muhammad Nasiruddin Khan, Syed Kabir Shah
{"title":"Energy assessment of some nuts and dried fruits grown in Pakistan’s climate and their role for weight control management","authors":"Anila Sarwar, Muhammad Nasiruddin Khan, Syed Kabir Shah","doi":"10.58921/jse.02.01.038","DOIUrl":"https://doi.org/10.58921/jse.02.01.038","url":null,"abstract":"The aim of the present study is to assess the energy contents of different dry fruits consumed in Pakistan. Six samples of tree nuts (walnut, almond, pine nut, pistachio, cashew nut, and coconut), one sample of the ground nut (peanut), and four samples of dried fruits (figs, apricot, dates, and raisins) were selected for this purpose. The energy contents of nuts and dried fruits were estimated using oxygen bomb calorimeter. Peanut was identified as the energy rich fruit (875.86 Cal/100g), followed by walnut (818.84 Cal/100g), coconut (787.36 Cal/100g), almond (785.61 Cal/100g), pine nut (772.31 Cal/100g), Pistachio (624.72 Cal/100g), and the cashew nut (616.46 Cal/100g). The energy values of the dry fruits were found higher in nuts (875.86-616.46 Cal/100g), compare to dried fruits (352.04–505.31 Cal/100g). Protein and fats contribute to the energy values of nuts; while carbohydrates make a valuable contribution to the energy content of dried fruits. The recommended serving of dry fruits was found to fulfill 20.26−4.40 % of the minimum estimated energy requirement (EER) of persons of different life styles. On the basis of the caloric content of the studied dry fruits, one can easily calculate the required amount of a particular dry fruit per day in accordance to gender, age and PAL life style. Therefore, the study would be helpful to plan weight balance strategies for individuals interested in energy dense food.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135313540","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}
引用次数: 0
Screening, Isolation, and Enzyme Kinetics of Bacterial Amylase collected from Rhizosphere soil 根际土壤细菌淀粉酶的筛选、分离及酶动力学研究
Journal of Sustainable Environmental Pub Date : 2023-07-31 DOI: 10.58921/jse.02.01.032
Affhan Shoaib, Hafiza Shehla, Hafsa Sheikh, Maryam Hassan
{"title":"Screening, Isolation, and Enzyme Kinetics of Bacterial Amylase collected from Rhizosphere soil","authors":"Affhan Shoaib, Hafiza Shehla, Hafsa Sheikh, Maryam Hassan","doi":"10.58921/jse.02.01.032","DOIUrl":"https://doi.org/10.58921/jse.02.01.032","url":null,"abstract":"Rhizosphere is a region where microbial communities are in complex association with the roots of plants where the activity of microbes and their enzymes are greatly influenced by root exudates. Amylase enzyme has great importance in biotechnology, with enormous utilization in food, fermentation, textile, and paper industries. They are produced intracellularly and extracellularly by different life forms including microorganisms. Microbial amylases are preferred over other sources because of their vast availability and it also meets the growing needs of industry. The present investigation deals with the isolation, screening, and enzyme kinetics of bacterial amylase from the rhizosphere soil samples collected from a fertile field. Soil samples were collected from the rhizosphere and amylase-producing bacteria screening was carried out by using a starch agar plate. Extracellular amylase was extracted from fermentation broth followed by quantification by starch-iodine assay. Bacterial amylase enzyme kinetics were determined by changing enzyme/substrate concentrations and incubation time. We successfully screened and isolated out starch hydrolyzing colonies from the rhizosphere soil samples. Studies on enzyme kinetics indicate that the activity of amylase increased initially as substrate and enzyme concentrations increased. If we kept enzyme concentration constant, to a certain point, there was no change in enzyme activity as the enzyme was saturated and no more enzyme was available to react with the excess substrate. Initially, enzyme activity increased as enzyme volume increased, but since substrate concentration was kept constant, higher volumes of the enzyme could not speed up the reaction. Further, under a prolonged incubation period, less amount of substrate was available at the end of a reaction. Therefore, it is concluded that the reaction velocity increases.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135313541","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}
引用次数: 0
Impact of Cleaning Inspecting Lubrication & Tightening (CILT) on Overall Equipment Effectiveness for Sustainable Production 清洗、检查、润滑及amp的影响加强(CILT)对可持续生产的整体设备有效性
Journal of Sustainable Environmental Pub Date : 2023-07-31 DOI: 10.58921/jse.02.01.045
Sheryar Khan, Shakeel Ahmed Shaikh, Miskeen Ali Gopang, Rano Khan
{"title":"Impact of Cleaning Inspecting Lubrication & Tightening (CILT) on Overall Equipment Effectiveness for Sustainable Production","authors":"Sheryar Khan, Shakeel Ahmed Shaikh, Miskeen Ali Gopang, Rano Khan","doi":"10.58921/jse.02.01.045","DOIUrl":"https://doi.org/10.58921/jse.02.01.045","url":null,"abstract":"Operating the equipment at its full capacity is one of the core objectives of every organization for sustainable production. OEE determines the actual amount of the product to be produced. This study was carried out with the aim to investigate the impact of Cleaning, Inspection, Lubrication, and Tightening (CILT) on Overall Equipment Effectiveness (OEE). It was found that after the implementation of CILT, OEE has increased by 12% and so the availability (3.12%), performance (16. %), and quality (0.44%). Results of the study confirm that CILT can bring a notable change in the OEE and has the potential to achieve substantial improvement if it implies to the rest of the lines.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135313539","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}
引用次数: 0
Bio-Electrochemical Fuel CELL: A Review Study on Electricity Generation Using Bio-Waste 生物电化学燃料电池:利用生物废弃物发电的研究进展
Journal of Sustainable Environmental Pub Date : 2023-03-06 DOI: 10.58921/jse.01.02.021
Syed Hasan Khuld, Babar Jamal Naqvi, N. Samoon, Muhammad Kashif, Naveed Alam Samdani, Talha Qazi
{"title":"Bio-Electrochemical Fuel CELL: A Review Study on Electricity Generation Using Bio-Waste","authors":"Syed Hasan Khuld, Babar Jamal Naqvi, N. Samoon, Muhammad Kashif, Naveed Alam Samdani, Talha Qazi","doi":"10.58921/jse.01.02.021","DOIUrl":"https://doi.org/10.58921/jse.01.02.021","url":null,"abstract":"This era is all about energy, humans cannot survive without energy. Conventional energy resources are not enough to fulfill the needs of energy that’s why it is necessary to find alternate energy resources that will be efficient and environment friendly. Microbial Fuel Cell (MFC) is one of the reasonably low costs and is considered as environment friendly It degrades the harmful substance during production of electricity.This technology helps out for the producing of electricity by using the microbes. The generation of electricity is the new form of non-renewable energy by treating of the waste water from different types of effluent. The purpose of this technology is to produce the electricity that is environment friendly and sustainable. This review is also the part of research which is also to make a comparison of different MFC feeds which have unique chemical composition and are rich of various biological species and designing. This report also contains the discussion of MFC principle, necessary components, bacteria that are responsible for electricity production. This MFC contain the different batch type of reactor and in each reactor anode and cathode are dipped for time to check the response of flow of electron. Electrodes are used for drawing the comparison data of the MFC and giving new direction for the researchers. Salt bridge or membrane is connected between the reactor for the flow of proton to the cathode side and oxygen is supplied in the cathode compartment.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116718424","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}
引用次数: 0
Bioremediation: Review on oil spill management using oil eating microorganisms, and spill effects on marine and terrestrial environment 生物修复:利用食油微生物进行溢油管理的综述,以及溢油对海洋和陆地环境的影响
Journal of Sustainable Environmental Pub Date : 2023-03-06 DOI: 10.58921/jse.01.02.020
Qurat‐ul Ain, A. Rehman, Madiha Abbasi
{"title":"Bioremediation: Review on oil spill management using oil eating microorganisms, and spill effects on marine and terrestrial environment","authors":"Qurat‐ul Ain, A. Rehman, Madiha Abbasi","doi":"10.58921/jse.01.02.020","DOIUrl":"https://doi.org/10.58921/jse.01.02.020","url":null,"abstract":"With never ending increase in usage and demand of petroleum products worldwide chances of its spill also increase. Oil spills directly affect marine as well as terrestrial ecosystem, as petroleum product became source of water pollution. Marine shorelines serve as home to variety of wildlife oil spills thus destroying habitat of different animals by polluting coastline. Fishes and birds being the main victims. Different physical and chemical methods are used to manage oil spills. However bioremediation is considered as best procedure to manage oil spills around the world. Bioremediation uses the oil loving microbes (lyophilic) to cope oil spills, microbes are cable of destroying complex chemical compounds, some bacteria consume hydrocarbon as their ultimate energy and carbon source. Although process is considered as highly effective the rate at which degradation occur is very slow to prevent oil effecting shore and marine ecosystem, generally  due to limitation of availability of nutrients which are generally nitrogen and phosphorous. Two type of methods are generally involved in bioremediation, these include bio augmentation and bio stimulation. In bio augmentation biodegradable bacteria are added to existing population at effected site while in bio stimulation, is addition of nutrients to make process more effective and efficient. Latest technology introduce use of nanoparticles in bioremediation. Along with bacteria some microalgae are under consideration for effective bioremediation. Challenges involve in biodegradation include slow bioremediation of polycyclic hydrocarbons of high molecular weight, i.e. asphaltenes can be difficult to deal .While failure of some techniques which are successful in laboratory at effected site is another problem .The review focus on oil spill effects, new trends in bioremediation developing technique and microbial bioremediation agents.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125876487","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}
引用次数: 0
Greenhouse Gas (CO2, CH4 & N2O) Emissions from Electricity Consumption in Private Sectors Universities of Karachi. 卡拉奇私立大学用电产生的温室气体(CO2, CH4和N2O)排放。
Journal of Sustainable Environmental Pub Date : 2023-03-06 DOI: 10.58921/jse.01.02.023
Muhammad Noman, Jamshaid Iqbal, S. Amjad
{"title":"Greenhouse Gas (CO2, CH4 & N2O) Emissions from Electricity Consumption in Private Sectors Universities of Karachi.","authors":"Muhammad Noman, Jamshaid Iqbal, S. Amjad","doi":"10.58921/jse.01.02.023","DOIUrl":"https://doi.org/10.58921/jse.01.02.023","url":null,"abstract":"Increasing greenhouse gas (GHG) emissions is worsening the climate change and its impacts all over the world. Currently there are number of techniques to estimate the GHG emissions and their concentration in the atmosphere. This study estimates the GHG (carbon dioxide, methane and nitrous oxide) footprint based on the one-year average fossil fuel consumption in selected Private Sector Universities of Karachi. The annual average GHG emissions from all of the universities were calculated to be 2,183.84 Tons of carbon dioxide (CO2), 41.3544 kg of methane (CH4) and 7.2612 kg of nitrous oxide (N2O). The CO2 emission from individual universities were in the range of 800 to 5,000 tons per year. Similarly, the CH4 was emitted in the range of 15-90 kg per year. N2O emission from all the selected universities was found very low in the range 2-16 kg per annum.  The study found that the overall rate of GHG emissions is rapidly increasing with an increase in fuel consumption resulted from high number of enrollments in selected universities. Study recommends the energy saving measures and the transition from fossil energy to renewable energy.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114904786","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}
引用次数: 0
Moving Into Age of Pandemics Due to Climate Change 由于气候变化而进入流行病时代
Journal of Sustainable Environmental Pub Date : 2023-03-06 DOI: 10.58921/jse.01.02.028
Saqib Hussain, Maryam Hassan, Syeda Arifa Batool Sherazi, I. Karim
{"title":"Moving Into Age of Pandemics Due to Climate Change","authors":"Saqib Hussain, Maryam Hassan, Syeda Arifa Batool Sherazi, I. Karim","doi":"10.58921/jse.01.02.028","DOIUrl":"https://doi.org/10.58921/jse.01.02.028","url":null,"abstract":"The early effects of the global climate change have been extensively studied but future effects on ecological health, human, domestic animal, and wildlife health, however, are significantly less well understood. Due to climate change, ancient bacteria and viruses that have laid asleep for thousands of years are reawakening as permafrost soils that have frozen for several thousands of years, melt. 218 of the 375 infectious diseases that humanity has faced over the planet have at some point been made worse by climatic dangers. Empirical cases showed 1,006 distinct ways that climatic risks, through various modes of transmission, led to deadly diseases. For complete societal adaptations to be effective there are too many human pathogenic diseases and modes of transmission that are exacerbated by climate hazards. This underscores the urgent need to address the root cause of the issue, which is reducing Green House Gas emissions. In addition to releasing these toxic chemicals, thawing permafrost also poses a health risk because it could release a variety of hibernating diseases, including novel and previously unidentified antibiotic-resistant bacteria, viruses, fungi, and parasites. Our immune system is underdeveloped and will need to undergo major adaptation, known as allostasis, which is also referred to as permafrost immunity.  Climate change, for instance, may result in a wide range of microbiological, vector, and host reactions, while not all organisms may react in the same way or over the same amount of time. Unfortunately, our scientific community has a fairly limited grasp of the current effectors and balances for many creatures and ecosystems, making it difficult to characterize the current condition, let alone to verify predictions for the future. It is clear that improved basic systematic surveillance and research programs are required, but implementing such programs is challenging and what is done during the coming years could be crucial.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121055831","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}
引用次数: 0
Evaluate the effect of Tropical Climatic Variations of Aflatoxin Occurrence in Basmati Rice 评价热带气候变化对巴斯马蒂稻黄曲霉毒素发生的影响
Journal of Sustainable Environmental Pub Date : 2022-12-31 DOI: 10.58921/jse.01.02.030
M. Asghar, F. Ahmed, Hafiz Rubnawaz
{"title":"Evaluate the effect of Tropical Climatic Variations of Aflatoxin Occurrence in Basmati Rice","authors":"M. Asghar, F. Ahmed, Hafiz Rubnawaz","doi":"10.58921/jse.01.02.030","DOIUrl":"https://doi.org/10.58921/jse.01.02.030","url":null,"abstract":"A wide variety of local crops and food products contain aflatoxins (AFs), which are food pollutants. The species of Aspergillus flavus and A. parasiticus create them under favorable conditions, such as high temperature and moisture, and they are extremely poisonous and carcinogenic. The distribution of aflatoxins (AFs) contamination in food commodities varies throughout the year due to specific temperatures and humidity in each month. Therefore, the present study was designed to assess humidity & temperature effects of each month’s Aflatoxins occurrences in rice. In this regard, 120 basmati rice samples were collected from various rice vendors during a different period in 2021 and quantified the AFs contamination using high pressure liquid chromatography with fluorescence detection and Kobra Cell™ Derivatization. About 72% of samples were found contaminated with Aflatoxins, ranging from 0.36–6.35 µgkg-1 and an average of 1.31 µgkg-1. Furthermore, in 95% samples contain AFs levels lower than the maximum tolerable limit (MTL = 4 µgkg-1) as suggested by European Union. Furthermore, 67% samples contained AFs levels ranging from 0.36–4.0 µgkg-1. However, only 5% samples exhibit AFs contamination ranging between 4.0–6.35 µgkg-1. Moreover, as per United States (FDA and FAO) and Pakistan (PSQCA) standards, all the samples were below than MTL of 20 µgkg-1 as. During the entire study, AFs contamination in basmati rice seems to differ monthly due to climatic variations. During the month of July, samples were found highly contaminated (5.15 µgkg-1), August (6.35 µgkg-1) and September (4.84 µgkg-1), as a highly humid condition in these months. It was concluded that in Pakistani rice was found safe for human consumption as the level of AFs is within limits and could be exported to other countries. However, the AFs contamination is highly influenced by climatic conditions.","PeriodicalId":412030,"journal":{"name":"Journal of Sustainable Environmental","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126411213","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}
引用次数: 0
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