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Articles by C.A.T. Ouattara
Total Records ( 4 ) for C.A.T. Ouattara
  M.K. Somda , A. Savadogo , C.A.T. Ouattara , A.S. Ouattara and A.S. Traore
  The use of mango peel (agricultural waste with no appreciable value to industries or competitive use as food) as alternative and cost-effective biomass for the production of bioethanol was examined. Thus, the aim of this study was to select performed yeasts strains able to ferment sugars containing in peel mango. The methods used, included: enzymatic hydrolysis with Bacillus and simultaneous saccharification and fermentation with W6 and B1, yeasts isolated from wine and among bakers yeasts, respectively. The kinetics parameters results showed that the optimum alcohol releasing like 35% (g E/g S) and 30% (g E/g S) respectively from W6 and B1 be spread out at 40°C. The maximum volume of ethanol produced from peel mango by W6 and B1 were, respectively 13 and 10.1 g L ¯1 at the 120th.
  M.K. Somda , A. Savadogo , C.A.T. Ouattara , A.S. Ouattara and A.S. Traore
  Saccharomyces is a potentially useful organism for the commercial production of ethanol as it is not capable of fermenting starch containing in the mango peel. To enhance this carbon source utilization and increase the rate of alcohol production, simultaneous saccharification and fermentation were conducted using Bacillus licheniformis and yeasts. The proposal of this research was to study amylasic activity, rate and amount of starch utilization and ethanol yields increasing several-fold in coculture due to the synergistic metabolic interactions between the species. The methods used, included: enzymatic hydrolysis with B. licheniformis and simultaneous saccharification and fermentation with S3 and A1. These two yeasts strains were isolated from wine and among local beer yeasts respectively. The enzymatic hydrolysis has allowed to obtain 78% (g g-1) of reducers sugars released. The maximum concentration of ethanol produced from peel mango by S3 and A1 during 5 days were, respectively 16 and 14.4 g L-1.
  C. Zongo , A. Savadogo , L. Ouattara , I.H.N. Bassole , C.A.T. Ouattara , A.S. Ouattara , N. Barro , J. Koudou and A.S. Traore
  The main goal of this study was to determine the phenol content, the antimicrobial and the antioxidant activities of acetone and water extracts from the rhizomes of Ampelocissus grantii (Baker) Planch (Vitaceae). The polyphenol content of extracts was determined colorimetrically using Folin-Ciocalteu method. The antioxidant activity of the same extracts was also screened using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging method. The antimicrobial activity was performed by disc diffusion and broth microdilution assays against 9 reference bacterial strains including gram-negative and gram-positive bacteria and 1 fungal strain. The acetone extract exhibited the higher level of Total Polyphenol Contents (TPC) which correlated with strong antioxidant activity (IC50 = 10.87 μg mL-1 and AAI = 5.6) and antimicrobial activity. The polyphenol content of the acetone extract was 124.26 gallic acid equivalent/100 g (GAE/100 g), that of water extract was 74.25 GAE/100 g. The largest diameter of inhibition zone (DIZ) (15 mm) and the lowest Minimal Inhibitory Concentration (MIC) value (0.625 mg mL-1) were recorded with Enterococcus faecalis 10907 CIP and Bacillus subtilus ATCC 21332. This study is a scientific base on the use of this plant in traditional health cure system.
  M.T.A. Zeba , C.A.T. Ouattara , S.D. Karou , C. Bisseye , D. Ouermi , F.W. Djigma , T. Sagna , V. Pietra , R. Moret , J. Nikiema and J. Simpore
  HCV and HBV cause annually, 2000 deaths from liver cancer in Burkina Faso. In this country, serological screening of hepatitis viruses B and C is only systematic among blood donors. The aims of this study were; (1) to investigate the reasons for the prescription of the screening for hepatitis B and C; (2) to determine HCV and HBV prevalence among 462 patients attending the Saint Camille Centre and (3) to identify patients with acute hepatitis or with chronic hepatitis for better monitoring. From February to May 2012, 462 patients attending the laboratory of the Saint Camille Medical Centre with viral hepatitis suspicion were screened. The hepatitis B and C serological markers were detected through Enzyme Immuno Assay (EIA) technique using commercial reagent kits. The clinical symptoms were also recorded for each patient. The results revealed that, the main clinical symptoms that prompted physicians to request HBV and HCV screenings were: asthenia (39.4%), anorexia (21.2%), abdominal pains (19.0%), nausea (10.4%), others (10.0%). The prevalence of HbsAg was 29.4% among the screened people. Patients with acute hepatitis B, active chronic hepatitis B and non-active chronic hepatitis B represented 11.2, 2.2 and 16.0%, respectively. The acquisition of immunity against HBV after vaccination was attempted for 11.7% people. HCV prevalence was 3.9% and its coinfection with HBV was 2.2%. This study showed a high prevalence for hepatitis B and C among patients attending Saint Camille Medical Centre. Without hygiene education and HBV/HCV prevention, viral hepatitis infection will become a serious public health problem in Burkina Faso.
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