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  Subjects -> CHEMISTRY (Total: 849 journals)
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    - CHEMISTRY (604 journals)
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CHEMISTRY (604 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 735 Journals sorted alphabetically
2D Materials     Hybrid Journal   (Followers: 6)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 25)
ACS Catalysis     Full-text available via subscription   (Followers: 30)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 16)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 24)
ACS Macro Letters     Full-text available via subscription   (Followers: 22)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 36)
ACS Nano     Full-text available via subscription   (Followers: 196)
ACS Photonics     Full-text available via subscription   (Followers: 9)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 20)
Acta Chemica Iasi     Open Access   (Followers: 2)
Acta Chimica Sinica     Full-text available via subscription  
Acta Chimica Slovaca     Open Access   (Followers: 1)
Acta Chromatographica     Full-text available via subscription   (Followers: 8)
Acta Facultatis Medicae Naissensis     Open Access  
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 5)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 7)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 4)
Advanced Functional Materials     Hybrid Journal   (Followers: 45)
Advanced Science Focus     Free   (Followers: 3)
Advances in Chemical Engineering and Science     Open Access   (Followers: 52)
Advances in Chemical Science     Open Access   (Followers: 11)
Advances in Chemistry     Open Access   (Followers: 11)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 18)
Advances in Drug Research     Full-text available via subscription   (Followers: 22)
Advances in Enzyme Research     Open Access   (Followers: 8)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 8)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 14)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 16)
Advances in Nanoparticles     Open Access   (Followers: 12)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 15)
Advances in Polymer Science     Hybrid Journal   (Followers: 40)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 18)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 17)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 5)
Advances in Science and Technology     Full-text available via subscription   (Followers: 7)
African Journal of Bacteriology Research     Open Access  
African Journal of Chemical Education     Open Access   (Followers: 2)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 7)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Alchemy : Jurnal Penelitian Kimia     Open Access  
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 3)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 66)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 14)
American Journal of Chemistry     Open Access   (Followers: 24)
American Journal of Plant Physiology     Open Access   (Followers: 12)
American Mineralogist     Full-text available via subscription   (Followers: 8)
Anadolu University Journal of Science and Technology     Open Access  
Analyst     Full-text available via subscription   (Followers: 42)
Angewandte Chemie     Hybrid Journal   (Followers: 146)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 194)
Annales UMCS, Chemia     Open Access   (Followers: 1)
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 1)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 3)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (Followers: 3)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (Followers: 7)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 12)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 14)
Anti-Infective Agents     Hybrid Journal   (Followers: 3)
Antiviral Chemistry and Chemotherapy     Hybrid Journal  
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 6)
Applied Spectroscopy     Full-text available via subscription   (Followers: 23)
Applied Surface Science     Hybrid Journal   (Followers: 23)
Arabian Journal of Chemistry     Open Access   (Followers: 6)
ARKIVOC     Open Access   (Followers: 2)
Asian Journal of Biochemistry     Open Access   (Followers: 1)
Atomization and Sprays     Full-text available via subscription   (Followers: 3)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 6)
Autophagy     Hybrid Journal   (Followers: 2)
Avances en Quimica     Open Access   (Followers: 1)
Biochemical Pharmacology     Hybrid Journal   (Followers: 9)
Biochemistry     Full-text available via subscription   (Followers: 255)
Biochemistry Insights     Open Access   (Followers: 5)
Biochemistry Research International     Open Access   (Followers: 6)
BioChip Journal     Hybrid Journal  
Bioinorganic Chemistry and Applications     Open Access   (Followers: 9)
Bioinspired Materials     Open Access   (Followers: 3)
Biointerface Research in Applied Chemistry     Open Access   (Followers: 2)
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access  
Biomacromolecules     Full-text available via subscription   (Followers: 18)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 3)
BioNanoScience     Partially Free   (Followers: 4)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 114)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 100)
Bioorganic Chemistry     Hybrid Journal   (Followers: 10)
Biopolymers     Hybrid Journal   (Followers: 17)
Biosensors     Open Access   (Followers: 1)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 2)
Bitácora Digital     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 3)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 26)
Bulletin of the Korean Chemical Society     Hybrid Journal   (Followers: 1)
C - Journal of Carbon Research     Open Access   (Followers: 2)
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 2)
Canadian Journal of Chemistry     Full-text available via subscription   (Followers: 8)
Canadian Mineralogist     Full-text available via subscription   (Followers: 3)
Carbohydrate Research     Hybrid Journal   (Followers: 26)
Carbon     Hybrid Journal   (Followers: 64)
Catalysis for Sustainable Energy     Open Access   (Followers: 5)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 6)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysts     Open Access   (Followers: 7)
Cellulose     Hybrid Journal   (Followers: 5)
Cereal Chemistry     Full-text available via subscription   (Followers: 4)
ChemBioEng Reviews     Full-text available via subscription   (Followers: 1)
ChemCatChem     Hybrid Journal   (Followers: 7)
Chemical and Engineering News     Free   (Followers: 12)
Chemical Bulletin of Kazakh National University     Open Access  
Chemical Communications     Full-text available via subscription   (Followers: 71)
Chemical Engineering Research and Design     Hybrid Journal   (Followers: 21)
Chemical Research in Chinese Universities     Hybrid Journal   (Followers: 3)
Chemical Research in Toxicology     Full-text available via subscription   (Followers: 18)
Chemical Reviews     Full-text available via subscription   (Followers: 158)
Chemical Science     Open Access   (Followers: 20)
Chemical Technology     Open Access   (Followers: 14)
Chemical Vapor Deposition     Hybrid Journal   (Followers: 4)
Chemical Week     Full-text available via subscription   (Followers: 7)
Chemie in Unserer Zeit     Hybrid Journal   (Followers: 53)
Chemie-Ingenieur-Technik (Cit)     Hybrid Journal   (Followers: 25)
ChemInform     Hybrid Journal   (Followers: 7)
Chemistry & Biodiversity     Hybrid Journal   (Followers: 5)
Chemistry & Biology     Full-text available via subscription   (Followers: 30)
Chemistry & Industry     Hybrid Journal   (Followers: 4)
Chemistry - A European Journal     Hybrid Journal   (Followers: 127)
Chemistry - An Asian Journal     Hybrid Journal   (Followers: 15)
Chemistry and Materials Research     Open Access   (Followers: 15)
Chemistry Central Journal     Open Access   (Followers: 4)
Chemistry Education Research and Practice     Free   (Followers: 4)
Chemistry in Education     Open Access   (Followers: 3)
Chemistry International     Hybrid Journal   (Followers: 1)
Chemistry Letters     Full-text available via subscription   (Followers: 45)
Chemistry of Materials     Full-text available via subscription   (Followers: 166)
Chemistry of Natural Compounds     Hybrid Journal   (Followers: 9)
Chemistry-Didactics-Ecology-Metrology     Open Access  
ChemistryOpen     Open Access   (Followers: 2)
Chemkon - Chemie Konkret, Forum Fuer Unterricht Und Didaktik     Hybrid Journal  
Chemoecology     Hybrid Journal   (Followers: 2)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 15)
Chemosensors     Open Access  
ChemPhysChem     Hybrid Journal   (Followers: 8)
ChemPlusChem     Hybrid Journal   (Followers: 1)
ChemTexts     Hybrid Journal  
CHIMIA International Journal for Chemistry     Full-text available via subscription   (Followers: 3)
Chinese Journal of Chemistry     Hybrid Journal   (Followers: 6)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 10)
Chromatographia     Hybrid Journal   (Followers: 24)
Chromatography Research International     Open Access   (Followers: 7)
Clay Minerals     Full-text available via subscription   (Followers: 8)
Cogent Chemistry     Open Access  
Colloid and Interface Science Communications     Open Access  
Colloid and Polymer Science     Hybrid Journal   (Followers: 10)
Colloids and Surfaces B: Biointerfaces     Hybrid Journal   (Followers: 8)
Combinatorial Chemistry & High Throughput Screening     Hybrid Journal   (Followers: 3)
Combustion Science and Technology     Hybrid Journal   (Followers: 18)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 1)
Composite Interfaces     Hybrid Journal   (Followers: 5)
Comprehensive Chemical Kinetics     Full-text available via subscription   (Followers: 2)
Comptes Rendus Chimie     Full-text available via subscription  
Comptes Rendus Physique     Full-text available via subscription   (Followers: 1)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 9)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 11)
Computational Chemistry     Open Access   (Followers: 2)
Computers & Chemical Engineering     Hybrid Journal   (Followers: 10)
Coordination Chemistry Reviews     Full-text available via subscription   (Followers: 1)
Copernican Letters     Open Access  
Critical Reviews in Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 5)
Crystal Structure Theory and Applications     Open Access   (Followers: 3)
CrystEngComm     Full-text available via subscription   (Followers: 10)
Current Catalysis     Hybrid Journal   (Followers: 1)
Current Metabolomics     Hybrid Journal   (Followers: 3)
Current Opinion in Colloid & Interface Science     Hybrid Journal   (Followers: 8)
Current Opinion in Molecular Therapeutics     Full-text available via subscription   (Followers: 15)
Current Research in Chemistry     Open Access   (Followers: 8)
Current Science     Open Access   (Followers: 46)
Dalton Transactions     Full-text available via subscription   (Followers: 18)
Detection     Open Access   (Followers: 2)
Developments in Geochemistry     Full-text available via subscription   (Followers: 2)
Diamond and Related Materials     Hybrid Journal   (Followers: 11)
Dislocations in Solids     Full-text available via subscription  
Doklady Chemistry     Hybrid Journal  
Drying Technology: An International Journal     Hybrid Journal   (Followers: 3)
Eclética Química     Open Access   (Followers: 1)
Ecological Chemistry and Engineering S     Open Access   (Followers: 2)
Ecotoxicology and Environmental Contamination     Open Access  
Educación Química     Open Access   (Followers: 1)
Education for Chemical Engineers     Hybrid Journal   (Followers: 5)
EDUSAINS     Open Access  
Elements     Full-text available via subscription   (Followers: 1)
Environmental Chemistry     Hybrid Journal   (Followers: 5)
Environmental Chemistry Letters     Hybrid Journal   (Followers: 2)

        1 2 3 4 | Last

Journal Cover Chemistry and Materials Research
  [15 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3224 - ISSN (Online) 2225-0956
   Published by IISTE Homepage  [37 journals]
  • Journal coverpage

    • Authors: Journal Editor
      Abstract: Journal coverpage

      Issue No: Vol. 9
       
  • Synthesis, Structure, and Spectral Characterization of Cu(ΙΙ) Complexes
           of Thiocarbohydrazide and Derivates

    • Authors: Shaza GHALI
      Abstract: The synthesis and structure of thiocarbohydrazide and metal complexes of thiocarbohydrazone ligand are described. The ligand was obtained by condensation of N,N`-thiocarbohydrazide with salicylaldehyde. The Cu(II)complex have been synthesized by reacting CuCl2.2H2O and Ligand by molar ratio 2:1(M:L),while the Cu(II) complex of thiocarbohydrazide have been synthesized by reacting CuCl2.2H2O and TCH  by molar ratio 1:2(M:L) These complexes are soluble only to a larger extent in DMF and DMSO .The bonding sites are the azomethine nitrogen atom, phenolic oxygen atom and thiol sulfur atom. The metal complexes exhibit square planner and octahedral structure. Characterization and structure elucidation of the synthesized compounds were achieved by spectral (IR, electronic,1H and 13C NMR) as well as  molar conductivities. Keywords: Thiocarbohydrazide, Thiocarbohydrazone ligand, Cu( ) Complexes, 1H and 13C NMR.
      Issue No: Vol. 9
       
  • Determination of Essential Mineral Contents in Salty Soils Used for
           Supplementary Food to Ruminants in Wolaita Zone

    • Authors: Asrat Kussa Menta
      Abstract: Minerals are essential for life to fulfil the needs of growth and production and to replace cells lost during the course of normal metabolism. On this account, they need to be replenished continuously through food, water or supplements. Although not well studied, rural people in Ethiopia have been using soil supplements for ruminants with the assumption to improve livestock production. Therefore, this study was conducted to examine the mineral content in red and brown salty soils used for supplementary food to ruminants in Wolaita Zone and to compare the findings against the national standards, and forward appropriate recommendation. Representative samples of minerals were taken from different sites of SNNPR around Wolaita Zone, Humbo worada, near Lake Abaya to test the contents and concentration of elements. Sixteen Aduwaa(salty soil) samples were collected, air dried, any visible external particles were removed crashed, homogenized, sieved by using 2 mm mesh, accurately weighed, labelled in plastic bags and sent to mechanical and chemical laboratory and tested using XRF spectroscopy in South Africa and Ethiopian Conformity Assessment Enterprise, in Addis Ababa. One way ANOVA was used for test significance. The findings of XRF spectrometry test showed that there are more than forty six (46) elements in the soil sample. Among them Na (1.790 - 7.562%), Mg (0.461- 0.832%), P (0.023  - 0.092%), S (0.014 – 0.084%), K (2.722 – 3.186%), and Ca (0.404 – 0.844%) are essential macronutrients and Mn (0.190 – 0.216%), Fe (4.908 – 7.292%), Cu (0.00026 – 0.00062%), Co (0.00064 – 0.00089%) and Zn (0.016 - 0.032%), are essential micronutrients which can become toxic when the threshold limits for normal growth are exceeded. The study also showed Aduwaa did not contain heavy metals such as Ir and Hg which have; so far, unknown roles in living organisms, and are toxic even at very low concentrations. However, it contained Pb (0.00048 – 0.00076%), Cd (0.00025 – 0.00128%) and As (0.00425 – 0.00528%) in relatively at very low concentration. The sample contained Fe at extremely high concentration which have antagonistic role in copper absorption and metabolism. Keywords: Supplementation, macro and micro minerals, XRF spectrometer, ANOVA, Aduwaa, Boole, Ruminants, Calcinations.
      Issue No: Vol. 9
       
  • Determination of the Concentration of Pb, Cu, Cr, Zn and Cd in the Waste
           Water(Effluent) Discharged from the Ethiopian Tannery

    • Authors: Tariku Bayisa Bedasa
      Abstract: Waste water discharged from the industry were used for irrigation purpose in the vicinity of industrial area of Ethiopia Tannery.  The waste water discharged from the tannery industry were examined for its heavy metals (Cu, Zn, Pb, Cd and Cr).   For this purpose three samples of waste water from different Sites (Site 1, Site 2 and Site 3) along the channel of the tannery were collected and analyzed by flame atomic absorption spectrophotometry (FAAS).  The concentration of heavy metals in waste water discharged from the tannery industry were found that Cu 0.019-0.023, Cd 0.018-0.023, Cr 3.33-7.945, Zn 0.17-0.29 mg/L and Pb below detection limit of the instrumentation.The results are also compared with the levels of metals in the data from previous studies. Keywords: Tannery, Waste water, Heavy metals, Flame atomic absorption Spectrophotometry,
      Issue No: Vol. 9
       
  • Antibacterial Screening of Some Newly Synthesized Cinnamo Hydroxamic Acids

    • Authors: Surendra K. Rajput
      Abstract: Newly synthesized cinnamo hydroxamic acids (CHA), N-methyl cinnamo hydroxamic acid (MCHA), N-benzyl cinnamo hydroxamic acid (N-BCHA), p-methyl benzyl cinnamo hydroxamic acid (p-CH3BCHA) and p-chloro benzyl cinnamo hydroxamic acid (p-ClBCHA), were synthesized and characterized by 1HNMR, IR spectroscopy and elemental analysis. These compounds are shows bacteristatic and bactericidal properties by the interaction of bacterial cell wall with two process bacterial cell wall synthesis inhibitors and disruption of protein synthesis. The bacterial cell growth zone of inhibition by these compounds (CHA, MCHA, N-BCHA, p-CH3BCHA, p-ClBCHA) for Lactobacillus are 13 mm, 17 mm, 14 mm, 15 mm, 22 mm and for Escherichia coli are 14 mm, 16 mm, 19 mm, 12 mm, 20 mm, at 1000 ppm respectively. Detailed analysis shows that these compounds are good cell growth of inhibition by the study of antibacterial activity against Lactobacillus and Escherichia coli bacteria. Keywords: Cinnamo hydroxamic acids, Antibacterial, Inhibition, Bacterial, Activity.
      Issue No: Vol. 9
       
  • Chemical Investigation on Berries of Embelia Schimperi from Oromia Region,
           Ethiopia

    • Authors: Tariku Nefo Duke
      Abstract: The aims of this study were to investigate the chemical constituents of Embelia schimperi. Embelia is a genus of climbing shrubs in the family Myrsinaceae. The plant has been much known as local medicine for the treatment of tape worms. In this project extraction, isolation and characterization of Embelia schimperi has been under taken and chemical investigation on the solvent extract of the plant has been conducted. The methanol extracts of the berries lead to isolation of one new compound. The compounds were identified to be alkaloid benzoate coded as F4. Structural elucidation of isolated compounds was accomplished by means of spectroscopic methods (NMR, UV, IR and LC-MS) technique. Keywords: Embelia schimperi, chemical constituents, LC-MS; alkaloid
      Issue No: Vol. 9
       
  • Efficiency of Wastewater Treatment System and Its Use for Irrigation - A
           Case Study of a private University in Ghana

    • Authors: Gati L, Gordon A, Mustapha M. B.
      Abstract: The reuse or utilization of treated wastewater for irrigation is conventionally considered as a means of mitigating water shortage or abating water pollution. Wastewater treatment plants designed for reuse in irrigation are more appropriate for developing countries striving to enhance access to improved sanitation. It is well known that successive stages of treatment of sewage effluent reduces the quantity of suspended solids, organic matter and nutrient load, bacteria population as well as biological oxygen demand to the extent that the final treated effluent contains virtually a small fraction compared to the influent sewage. A short-term assessment of the decentralised reuse-oriented effluent system of a private University (in Ghana) was carried out to determine its effluent quality for the purpose of irrigating its landscape. The investigation showed that Total Coliform, E. coli and Vibrio spp. were significantly reduced, through the treatment stages, but not to within Internationally accepted guideline values. Salmonella spp. was not significantly reduced. Physical parameters, nutrients as well as biological oxygen demand did not show any variation along the treatment stages. Suspended solids, optimum temperature and pH were identified as contributing to treatment inefficiency of the plant. It is therefore recommended the treated wastewater, prior to disinfection, should be filtered to reduce suspended solids. This will enhance effective chlorination and by extension, significantly reduce bacteria population. Furthermore Regular monitoring and laboratory analysis of the recycled effluent from the plant should be carried out by the EPA or other professional organisation to ensure compliance. Keywords: Reuse, Wastewater, Irrigation, Chlorination
      Issue No: Vol. 9
       
  • Synthesis of Azobenzene and Naphthopyran Based Polymers and
           Characterization of Their Photochromic Properties

    • Authors: Teferi Tademe
      Abstract: The optically active monomer is prepared to synthesize the target polymer which contains naphthopyran and its photochromic properties and kinetics are investigated as well. Its photochromic property was studied using UV–vis absorption spectroscopy. When we stop measuring of the UV light, the decolorization of the sample changes spontaneously in the dark because of the thermal back-reaction which occurs as open form of the naphthopyran undergoes ring closure and the polymer’s decoloration kinetics in films forms were analysed in the dark condition at room temperature after the optical intensity reached the maximum under UV irradiation. The naphthopyran polymer has showed the thermal bleaching tendency that the decoloration rate is very fast at the beginning of the thermal bleach and then gradually it became slow down. Keywords- Photochromism, naphthopyran-containing polymer, kinetics, irradiation
      Issue No: Vol. 9
       
  • Investigation into Trihalomethanes in Lager Beers Brewed in Ghana

    • Authors: Gati L; , Gordon A, Asiedu G. G.
      Abstract: Water is a vital ingredient in beer constituting 91-98% of the content. In Ghana, the main source of water for the two major breweries in the city of Accra is from the Ghana Water Company which takes its source from the Weija Dam and the quality of the water, which may be changed without warning. Moreover, chlorination is the most widely used water disinfection process. Trihalomethanes are formed when water containing natural organic matter reacts with chlorine used in disinfection and other halogens. Trihalomethanes are potential carcinogens and it has been reported to cause a higher incidence of bladder and colon cancer in animals. Therefore, this research was carried out to determine the levels of trihalomethanes in six selected brands commercially brewed lager beers by the two major breweries in Ghana. A gas chromatograph equipped with an electron capture detector coupled with a headspace auto-sampler fitted with the column HP-5, 30m × 0.32mm × 0.25µm was used in analyzing fourty-eight bottles of lager beers comprising of 8 different batches from each of the six brands. The highest trihalomethane detected in the lager beers was chloroform with a concentration 20.19 ±  2.73µg/l and the least detected was dibromochloromethane of concentration 0.282 ± 0.06µg/l. The levels detected were below the World Health Organization’s total daily intake guideline values of 300µg/l, 60µg/l, 100µg/l and 100µg/l for chloroform, bromodichloromethane, dibromochloromethane and bromoform respectively in drinking water. However, regular intake of beer with higher concentrations of trihalomethanes as it was observed in some of the samples can increase the risk of one being diagnosed of cancer related ailments in the longer future. It is therefore recommended that the regulatory bodies such as the Food and Drugs Authority (FDA) and the Ghana Standards Authority (GSA) must begin to monitor the levels of trihalomethanes in beers and other beverages that are produced in the country to help safeguard the health of the citizenry. Keywords: Trihalomethanes , carcinogens, chlorination, gas chromatograph, lager beers
      Issue No: Vol. 9
       
  • Evolution of Fermentation Parameters of Ensiled Sugar Beet Pulp During
           Storage

    • Authors: Alami Lamiae, Souad Salmaoui, Abdelkhalek Oussama, Ali El Moujahid, Abderrahim Hassani, Manar Otmani, Mohamed Mbarki
      Abstract: This study was carried out to evaluate the silage quality of sugar beet pulp throughout the storage period and so obtain useful information for farmers and livestock feed industry. All silages were prepared in bags of 50 kg in anaerobic conditions. Silages were sampled on months 0, 3 and 6.the results indicate a net decrease of the pH to around 3.8 after 3months silage and remained stable, an important increase of the lactic acid and a slight increase in the acetic acid. But there is a total absence of propionic acid and butyric acid and that after 3 months and 6 months silage. These results have allowed classifying silage 3 months and 6 months between a good and excellent. the results indicated that there is a positive and significant correlation between lactic and acetic acid (r = 0.955 **) and between DM and pH (r = 0 .630**), but there is a negative and significant correlation between pH and lactic acid (r = -0.896**), between DM and lactic acid (r = -0.731**), between acetic acid and pH (r= -0.921**) and between acetic acid and DM (r= -0.678**). Keywords: Sugar beet pulp; silage; VFAs; pH; Storage period.
      Issue No: Vol. 9
       
 
 
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