Papers by Traore Karim Sory
American Journal of Applied Chemistry, Apr 27, 2023
International journal of advanced research, Oct 31, 2022
Polycyclic aromatic hydrocarbons (PAHs) are among the organic pollutants sought both in the vario... more Polycyclic aromatic hydrocarbons (PAHs) are among the organic pollutants sought both in the various environmental compartments (water, soil, air, etc.) and in food intended for human consumption. They are a group of persistent organic pollutants that are potentially mutagenic and carcinogenic. Thus, the present study aims to determine the PAH levels in the flesh of local poultry also called bicycle chickens (gallus gallusdomesticus). Ten (10) composite samples of chickens were collected in Karakoro, a locality located in the department of Korhogo in the north of Cote dIvoire. After the extraction and purification steps, the samples were analyzed on a Shimadzu brand HighPerformance Liquid Chromatograph (HPLC) equipped with a fluorimetric detector. The measured PAHs, eight (8) molecules in number, are classified among the priority substances to be researched in the context of food safety (fluoranthene, pyrene, benzo(k)fluoranthene, benzo(a)pyrene, indeno(1 ,2,3-cd) pyrene, benzo (g,h,i) perylene, benzo (a) anthracene, benzo (b) fluoranthene). The results obtained showed the presence of these molecules in the samples analyzed at concentrations higher than the European Union (EU) standard for some. On the other hand, all the PAHs determined have concentrations lower than the Codex Alimentarius standard.
Scholars Academic Journal of Biosciences
The Grand Lahou lagoon system receives numerous spills from inland waters. This results in variou... more The Grand Lahou lagoon system receives numerous spills from inland waters. This results in various forms of chemical pollution. Two species of fish most consumed by the Grand Lahou population are contaminated with high levels of Polychlorinated Biphenyls (PCBs). The objective of this study is to reduce the levels of PCBs in both fish species in order to provide consumers with healthy fish. The fish species most contaminated with PCBs, namely a type of catfish called ‘‘machoiron’’ (Chrysichthys sp.) and the mullet (Mugil sp.) were collected according to their weight (category 1:101-200g and category 2: 201-300g). Smoking has been proposed to reduce PCB levels. Thus two smoking techniques were used: smoking the fish traditionally using firewood as fuel and smoking on barbecue with charcoal. The level of PCB contamination in fish was determined by the gas chromatograph coupled with an electron capture detector (GC-ECD). The results obtained show that the smoking techniques used reduce ...
Asian Journal of Physical and Chemical Sciences
The present study aims at determining the level of contamination of the jawfish (Chrysichthys nig... more The present study aims at determining the level of contamination of the jawfish (Chrysichthys nigrodigitatus) by organophosphate residues in the hydroelectric dams of Faé, Kossou and Taabo. Ninety (90) fish were collected from these three dams during eight sampling campaigns. Composite samples were formed, each for two fish. A total of forty-five (45) composite samples were formed. The detection of pesticide residues in the fish samples was determined by gas chromatography-mass spectrometer (GC/MS). The results show that the average total organophosphate residue load at the three dams is 0.184 mg/kg. The Faé hydroelectric scheme had the highest total load of 0.266 mg/kg in fish samples, compared to 0.197 mg/kg for Taabo and 0.089 mg/kg for the Kossou hydroelectric dam. The relatively high average total concentration is observed for parathion-methyl with a value of 0.130 ± 0.023 mg/kg. Chlorfenvinphos, with a total average concentration of 0.046 ± 0.007 mg/kg was the only molecule pr...
International Journal of Advanced Research
The objective of thisstudywas to determine the level of contamination of chickenmeat and eggscoll... more The objective of thisstudywas to determine the level of contamination of chickenmeat and eggscollectedfrompoultryfarms in Ivory Coast by antibiotics (sulfadiazine, sulfadimethoxine, sarafloxacin and oxytetracycline). To carry out thiswork, thirty (30) samples of chickenflesh and thirty-six (36) samples of eggswerecollected on the two sites (Abidjan point kilometer 17 and Agnibilékrou). Thesesampleswereprocessed and thenassayed on a SHIMADZU chromatographic system consisting of a sample changer, a high pressure binary HPLC pump and a UV-Visible absorption detector. The results of the analyses showed the presence of antibiotics in the chickenmeatcollected in Abidjan and Agnibilékrou with variable levels. In Abidjan, apartfromsarafloxacin, the levels of the otherantibioticsdetected in the chickenmeatwereabove the European Union standards. In Agnibilékrou, they are all outside the standards except for oxytetracycline. Regardingeggsamples, the resultsshowed the presence of only one an...
Current Journal of Applied Science and Technology
The mycotoxins are toxic composites frequently found in foodstuffs causing some damages to consum... more The mycotoxins are toxic composites frequently found in foodstuffs causing some damages to consumers. This current study has been realised in order to estimate the content of Aflatoxin B1 and Ochratoxin A in dry okra and cassava chips frequently consumed by the population of Daloa. The analysis by chromatography in the liquid phase at high performance has shown that these foodstuffs contain Aflatoxin B1 and Ochratoxin A. These results reveal an average content of : 2.58 ± 3.65 µg/Kg and 3.08 ± 5.04 µg/Kg for the Aflatoxin B1 ; 1.06 ± 0.86 µg/Kg and 0.61±0.24 µg/Kg for the Ochratoxin A respectively in the flour of cassava chips and the powder of dry okra. These concentrations are somewhat to higher than those allowed by the norm of Codex Alimentarius. Under this form, the consumption of these foodstuffs by the population expose them at risk of diseases.
Journal of Food and Nutrition Sciences
African Journal of Biotechnology, Mar 18, 2008
African Journal of Biotechnology, 2008
Page 1. African Journal of Biotechnology Vol. 7 (6), pp. 811-820, 18 March, 2008 Available online... more Page 1. African Journal of Biotechnology Vol. 7 (6), pp. 811-820, 18 March, 2008 Available online at http://www.academicjournals.org/AJB ISSN 1684–5315 © 2008 Academic Journals Full Length Research Paper Comparison of trace element contamination levels (Cu, ...
European Scientific Journal, ESJ, 2017
The treatment of pesticides is a necessity in view of the stability and toxicity of the pesticide... more The treatment of pesticides is a necessity in view of the stability and toxicity of the pesticides that generate them. The objective of this work is to study the degradation of picloram in aqueous medium under UV irradiation. It is a selective and systemic herbicide that can control woody plants and broadleaf weeds. The irradiations were carried out using a mercury vapor lamp of wavelength λ = 365 nm. A high performance liquid chromatograph equipped with a UV / visible detector was used to analyze the samples. The degradation of picloram in aqueous medium was carried out by direct photolysis and photocatalysis. In direct photolysis, a low rate of product degradation (6.9 %) was obtained after 225 min of irradiation. Photolysis in the presence of a catalyst (TiO2) accelerated the degradation of the molecule. Experiments demonstrating the effect of the concentration of the catalyst showed that the optimum concentration corresponding to a maximum degradation of picloram is 4 mg / L (62...
International Journal of Current Research in Biosciences and Plant Biology, 2017
International Journal of Innovation and Applied Studies, 2019
The study was carried out on tomatoes (Lycopersicon esculentum P. Mill) and cabbages (Brassica ol... more The study was carried out on tomatoes (Lycopersicon esculentum P. Mill) and cabbages (Brassica oleracea L. var capitata) grown in Daloa. It covered ninety samples of vegetables including 60 tomato samples and 30 samples of cabbage collected during three field campaigns in a locality in Cote d'Ivoire (Daloa). These samples were processed using a SHIMADZU brand liquid chromatograph to determine pesticide residues. The results revealed contamination of tomatoes (Lycopersicon esculentum P. Mill) and cabbages (Brassica oleracea L. var capitata). Four pesticide residues, three of which belong to the organophosphorus family (chlorpyrifos, dimethoate, profenophos) and one from the pyrethroid family, were detected in tomatoes with detection percentages of 39%, 25%, 22% and 14%. The results of the analysis also showed the presence of four other pesticides including two from the organophosphorus family (profenophos and diazinon) and two others from the Carbamate family (carbaryl and dithio...
European Scientific Journal, ESJ, 2014
Aquatic environments are one of the largest reservoirs of environmental pollutants. This study ai... more Aquatic environments are one of the largest reservoirs of environmental pollutants. This study aimed to evaluate the level of contamination in polychlorinated biphenyls (PCBs) of fishes caught in the lagoon of Grand-Lahou. Three species of fish, carp (Sarotherodon melanotheron), mullet (Mugilcurema) and catfish (Chrysichthys nigrodigitatus), were sampled according to their weight. Indicators PCBs (PCBis) analysis was performed by Gas-Chromatography coupled to an Electron Capture Detector (GC-ECD). Results showed that fresh fishes present concentrations in PCBis ranging from 0.06 to 365.33 ng/g of fresh weight (fw). The highest concentrations are found in cap and catfish species weightingfrom201 to 300 g and in mullet specie weighting from 101 to 200g. The predominant PCBis found in tissues are CB 138, CB 153 and CB 180.The Sum of the seven PCBis per specie shows that the catfish is more contaminated (311.51±208.46 ng/g wf) than the mullet and carp (85.33±58.87and 19.55 ±11.25 ng/g w...
International Journal of Innovation and Applied Studies, 2020
European Scientific Journal, ESJ, 2018
The study was done on two species of peppers capsicumannuum and capsicum fructescens. It concerne... more The study was done on two species of peppers capsicumannuum and capsicum fructescens. It concerned ninety samples of these two species, collected during three countrysides in two localities of Côte d’Ivoire (Bouake and Dabou). These samples were handled by means of a liquid-phase leading chromatograph SHIMADZU with the aim of determining the residues of pesticides. The observed results revealed a contamination of both species : capsicum annuum and capsicum fructescens, indeed, six residues of pesticides (chlorothalonil, chlorpyrifos, carbendazim, maneb, dimethoate and lambdacyaholothrine) were detected in these two species distributed in four families of pesticides (organochlorines, organophosphates, carbamates and pyrethrinoïds). The analysis showed that pyrethrinoïdes with respective proportions of 76,17% and 75,95% in capsicum annuum and capsicum fructescens were the most important ; followed organophosphate with respective proportions of 10,93% and 20,04% in capsicum annuum and ...
International Journal of Advanced Research, 2019
European Journal of Scientific Research, 2007
European Journal of Agriculture and Food Sciences, 2020
This study was conducted to ascertain the Sanitary state of beverages (Gnamankoudji, Bissap and T... more This study was conducted to ascertain the Sanitary state of beverages (Gnamankoudji, Bissap and Tomi) sold in the streets of Daloa (Côte d'Ivoire). To conduct the study, a survey was carried out to diagnose the different non-alcoholic artisanal drinks sold in the town of Daloa. The diagnosis revealed that 87.5% of consumers buy the drinks from the vendors while 12.5% produce them themselves. These drinks are consumed mainly by 77% of young people (˂ 30 years old), mostly pupils and students. Furthermore, 83.5% of the respondents have no knowledge of chemical contamination of the beverages they consume and various ailments have been reported by consumers. Toxicological analyses carried out on these three (3) beverages revealed that they present a risk to the health of the consumer. This is because the level of contamination of these beverages is three (3) to five (5) times higher than the European recommendations on the maximum tolerable level of PAT (50 µg.L-1) in fruit juices a...
International Journal of Current Research in Biosciences and Plant Biology, 2020
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Papers by Traore Karim Sory