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ENGINEERING (1248 journals)                  1 2 3 4 5 6 7 | Last

Showing 1 - 200 of 1205 Journals sorted alphabetically
3 Biotech     Open Access   (Followers: 8)
3D Research     Hybrid Journal   (Followers: 20)
AAPG Bulletin     Hybrid Journal   (Followers: 8)
AASRI Procedia     Open Access   (Followers: 14)
Abstract and Applied Analysis     Open Access   (Followers: 3)
Aceh International Journal of Science and Technology     Open Access   (Followers: 2)
ACS Nano     Full-text available via subscription   (Followers: 277)
Acta Geotechnica     Hybrid Journal   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
Acta Polytechnica : Journal of Advanced Engineering     Open Access   (Followers: 3)
Acta Scientiarum. Technology     Open Access   (Followers: 3)
Acta Universitatis Cibiniensis. Technical Series     Open Access  
Active and Passive Electronic Components     Open Access   (Followers: 7)
Adaptive Behavior     Hybrid Journal   (Followers: 11)
Adıyaman Üniversitesi Mühendislik Bilimleri Dergisi     Open Access  
Adsorption     Hybrid Journal   (Followers: 4)
Advanced Engineering Forum     Full-text available via subscription   (Followers: 7)
Advanced Science     Open Access   (Followers: 5)
Advanced Science Focus     Free   (Followers: 5)
Advanced Science Letters     Full-text available via subscription   (Followers: 10)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 7)
Advanced Synthesis & Catalysis     Hybrid Journal   (Followers: 18)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 7)
Advances in Engineering Software     Hybrid Journal   (Followers: 27)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 15)
Advances in Fuzzy Systems     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 13)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 21)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 22)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 9)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 29)
Advances in Operations Research     Open Access   (Followers: 12)
Advances in OptoElectronics     Open Access   (Followers: 5)
Advances in Physics Theories and Applications     Open Access   (Followers: 13)
Advances in Polymer Science     Hybrid Journal   (Followers: 43)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Remote Sensing     Open Access   (Followers: 44)
Advances in Science and Research (ASR)     Open Access   (Followers: 5)
Aerobiologia     Hybrid Journal   (Followers: 3)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 6)
AIChE Journal     Hybrid Journal   (Followers: 35)
Ain Shams Engineering Journal     Open Access   (Followers: 5)
Akademik Platform Mühendislik ve Fen Bilimleri Dergisi     Open Access   (Followers: 1)
Alexandria Engineering Journal     Open Access   (Followers: 1)
AMB Express     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 26)
American Journal of Engineering and Applied Sciences     Open Access   (Followers: 10)
American Journal of Engineering Education     Open Access   (Followers: 9)
American Journal of Environmental Engineering     Open Access   (Followers: 16)
American Journal of Industrial and Business Management     Open Access   (Followers: 23)
Analele Universitatii Ovidius Constanta - Seria Chimie     Open Access  
Annals of Combinatorics     Hybrid Journal   (Followers: 4)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of Regional Science     Hybrid Journal   (Followers: 7)
Annals of Science     Hybrid Journal   (Followers: 7)
Antarctic Science     Hybrid Journal   (Followers: 1)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applicable Analysis: An International Journal     Hybrid Journal   (Followers: 1)
Applied Catalysis A: General     Hybrid Journal   (Followers: 6)
Applied Catalysis B: Environmental     Hybrid Journal   (Followers: 18)
Applied Clay Science     Hybrid Journal   (Followers: 6)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 11)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4)
Applied Nanoscience     Open Access   (Followers: 8)
Applied Network Science     Open Access   (Followers: 3)
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Physics Research     Open Access   (Followers: 5)
Applied Sciences     Open Access   (Followers: 3)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5)
Archives of Foundry Engineering     Open Access  
Archives of Thermodynamics     Open Access   (Followers: 8)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
ASEE Prism     Full-text available via subscription   (Followers: 3)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Engineering Review     Open Access  
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 1)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Asian Journal of Biotechnology     Open Access   (Followers: 8)
Asian Journal of Control     Hybrid Journal  
Asian Journal of Current Engineering & Maths     Open Access  
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 8)
Assembly Automation     Hybrid Journal   (Followers: 2)
at - Automatisierungstechnik     Hybrid Journal   (Followers: 1)
ATZagenda     Hybrid Journal  
ATZextra worldwide     Hybrid Journal  
Australasian Physical & Engineering Sciences in Medicine     Hybrid Journal   (Followers: 1)
Australian Journal of Multi-Disciplinary Engineering     Full-text available via subscription   (Followers: 2)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 9)
Avances en Ciencias e Ingeniería     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 1)
Bangladesh Journal of Scientific and Industrial Research     Open Access  
Basin Research     Hybrid Journal   (Followers: 5)
Batteries     Open Access   (Followers: 6)
Bautechnik     Hybrid Journal   (Followers: 1)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 26)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
BER : Manufacturing Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Motor Trade Survey     Full-text available via subscription  
BER : Retail Sector Survey     Full-text available via subscription   (Followers: 1)
BER : Retail Survey : Full Survey     Full-text available via subscription   (Followers: 1)
BER : Survey of Business Conditions in Manufacturing : An Executive Summary     Full-text available via subscription   (Followers: 2)
BER : Survey of Business Conditions in Retail : An Executive Summary     Full-text available via subscription   (Followers: 3)
Beyond : Undergraduate Research Journal     Open Access  
Bhakti Persada : Jurnal Aplikasi IPTEKS     Open Access  
Bharatiya Vaigyanik evam Audyogik Anusandhan Patrika (BVAAP)     Open Access   (Followers: 1)
Biofuels Engineering     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biomaterials Science     Full-text available via subscription   (Followers: 10)
Biomedical Engineering     Hybrid Journal   (Followers: 15)
Biomedical Engineering and Computational Biology     Open Access   (Followers: 13)
Biomedical Engineering Letters     Hybrid Journal   (Followers: 5)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 21)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 37)
Biomedical Engineering: Applications, Basis and Communications     Hybrid Journal   (Followers: 5)
Biomedical Microdevices     Hybrid Journal   (Followers: 9)
Biomedical Science and Engineering     Open Access   (Followers: 4)
Biomedizinische Technik - Biomedical Engineering     Hybrid Journal  
Biomicrofluidics     Open Access   (Followers: 4)
BioNanoMaterials     Hybrid Journal   (Followers: 2)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Boletin Cientifico Tecnico INIMET     Open Access  
Botswana Journal of Technology     Full-text available via subscription   (Followers: 1)
Boundary Value Problems     Open Access   (Followers: 1)
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 12)
Bulletin of Canadian Petroleum Geology     Full-text available via subscription   (Followers: 13)
Bulletin of Engineering Geology and the Environment     Hybrid Journal   (Followers: 14)
Bulletin of the Crimean Astrophysical Observatory     Hybrid Journal  
Cahiers, Droit, Sciences et Technologies     Open Access  
Calphad     Hybrid Journal  
Canadian Geotechnical Journal     Hybrid Journal   (Followers: 31)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 42)
Case Studies in Engineering Failure Analysis     Open Access   (Followers: 6)
Case Studies in Thermal Engineering     Open Access   (Followers: 5)
Catalysis Communications     Hybrid Journal   (Followers: 6)
Catalysis Letters     Hybrid Journal   (Followers: 2)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 7)
Catalysis Science and Technology     Free   (Followers: 8)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 3)
Catalysis Today     Hybrid Journal   (Followers: 7)
CEAS Space Journal     Hybrid Journal   (Followers: 2)
Cellular and Molecular Neurobiology     Hybrid Journal   (Followers: 3)
Central European Journal of Engineering     Hybrid Journal  
CFD Letters     Open Access   (Followers: 6)
Chaos : An Interdisciplinary Journal of Nonlinear Science     Hybrid Journal   (Followers: 2)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Engineering     Open Access   (Followers: 2)
Chinese Science Bulletin     Open Access   (Followers: 1)
Ciencia e Ingenieria Neogranadina     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencias Holguin     Open Access   (Followers: 3)
CienciaUAT     Open Access   (Followers: 1)
Cientifica     Open Access  
CIRP Annals - Manufacturing Technology     Full-text available via subscription   (Followers: 11)
CIRP Journal of Manufacturing Science and Technology     Full-text available via subscription   (Followers: 13)
City, Culture and Society     Hybrid Journal   (Followers: 21)
Clay Minerals     Full-text available via subscription   (Followers: 10)
Clean Air Journal     Full-text available via subscription   (Followers: 1)
Clinical Science     Full-text available via subscription   (Followers: 9)
Coal Science and Technology     Full-text available via subscription   (Followers: 3)
Coastal Engineering     Hybrid Journal   (Followers: 11)
Coastal Engineering Journal     Hybrid Journal   (Followers: 6)
Coatings     Open Access   (Followers: 4)
Cogent Engineering     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Color Research & Application     Hybrid Journal   (Followers: 2)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 14)
Combustion, Explosion, and Shock Waves     Hybrid Journal   (Followers: 13)
Communications Engineer     Hybrid Journal   (Followers: 1)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 2)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 28)
Composite Interfaces     Hybrid Journal   (Followers: 7)
Composite Structures     Hybrid Journal   (Followers: 276)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 212)
Composites Part B : Engineering     Hybrid Journal   (Followers: 247)
Composites Science and Technology     Hybrid Journal   (Followers: 187)
Comptes Rendus Mécanique     Full-text available via subscription   (Followers: 2)
Computation     Open Access  
Computational Geosciences     Hybrid Journal   (Followers: 15)
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computational Science and Discovery     Full-text available via subscription   (Followers: 2)
Computer Applications in Engineering Education     Hybrid Journal   (Followers: 8)
Computer Science and Engineering     Open Access   (Followers: 19)
Computers & Geosciences     Hybrid Journal   (Followers: 31)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 8)
Computers and Electronics in Agriculture     Hybrid Journal   (Followers: 5)
Computers and Geotechnics     Hybrid Journal   (Followers: 11)
Computing and Visualization in Science     Hybrid Journal   (Followers: 6)
Computing in Science & Engineering     Full-text available via subscription   (Followers: 33)
Conciencia Tecnologica     Open Access  
Concurrent Engineering     Hybrid Journal   (Followers: 3)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 8)
Control and Dynamic Systems     Full-text available via subscription   (Followers: 9)
Control Engineering Practice     Hybrid Journal   (Followers: 44)

        1 2 3 4 5 6 7 | Last

Journal Cover Bangladesh Journal of Scientific and Industrial Research
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   ISSN (Print) 0304-9809
   Published by Bangladesh Journals Online Homepage  [108 journals]
  • Thermostability and thermodynamic characterization of sprouted pearl
           millet α-amylases for its biotechnological applications

    • Authors: KU Agbo, PC Okwuenu, AL Ezugwu, SOO Eze, FC Chilaka
      Pages: 159 - 166
      Abstract: There is an increasing demand for amylolytic products such as glucose syrup in biotechnological industries. Starch liquification by α-amylase must take place at temperatures higher than the gelatinization temperatures and the use for thermostable α-amylase is therefore required. Two (or) isotypes namely amy-1 and amy-2 of α-amylase from pearl millet have been investigated for their thermostability and thermodynamic characterization. Thermal inactivation of α-amylase follows first order kinetics which varies with time and product during inactivation process. The half-life of α-1 was 198 mins at 50°C. The Ea (inact) was calculated using Arrhenius plot gave 22.00 KCalmol-1K-1 for α-1 and 19.44 KCalmol-1K-1 for α-2. The Z-values were 22.52°C and 25.38°C for α-1 and α-2, respectively. The thermodynamic parameters: the enthalpy change of inactivation ΔH (inact)  had 87.815 KJmol-1K-1 at 50°C for α-1 and 78.56 KJmol-1K-1 at 50°C for α-2. The change in free energy of inactivation ΔG (inact) of α-1 and α-2 were 105.5 KJmol-1K-1 and 104.33 KJmol-1K-1 at 50°C, respectively. The entropy of inactivation ΔS (inact) values for α-1 and α-2 are calculated as -54.80 JMol-1K-1 and -79 JMol-1K-1 at 50°C. This suggest that the α-1 and α-2 are thermostable.Bangladesh J. Sci. Ind. Res. 52(3), 159-166, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34146
      Issue No: Vol. 52, No. 3 (2017)
  • Influence of the micro-structural factors upon thermal and mechanical
           properties of various bag leathers

    • Authors: AK Mondal, PK Chattopadhyay
      Pages: 167 - 176
      Abstract: Four different bag leathers, such as, Sheep Bag Leather (SBL), Buffalo Vegetable Tanned Leather (BVTL), Cow Drum Dyed Dry Milled Leather (CDDDML), and Cow Crocodile Print Leather (CCPL), were processed by different methods from respective wet-blues of Indian origin. Thermal degradation profile and mechanical properties of the samples were evaluated, and crosslink densities of each sample were measured by fitment of Mooney-Rivlin equation on stress-strain plots. Morphological characteristics (e.g. fibre structure, fibre thickness, splitting etc.) of all the specimens were investigated by image analyses of SEM photomicrographs. The highest crosslinking density for BVTL was attributed to its higher fibre and fibril thicknesses coupled with rigorous retanning by vegetable tannins and syntans. Embossing at higher temperature and pressure reduced CCPL’s elongation-at-break value and hence stretchiness possibly due to the development of set properties within the CCPL matrix. SBL was noted to contain huge void spaces that increased its stretchiness, and melamine formaldehyde syntans showed pronounced influence in increasing the thermal resistance of both CCPL and CDDDML.Bangladesh J. Sci. Ind. Res. 52(3), 167-176, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34147
      Issue No: Vol. 52, No. 3 (2017)
  • Fluxes of methane and distribution of sulfate as influenced by coastal
           salt-marsh soil ecosystem of Northern Germany

    • Authors: HR Khan
      Pages: 177 - 186
      Abstract: The study was conducted in Schleswig-Holstein at the Wadden sea coast of Northern Germany to evaluate the possible factors controlling methane (CH4) and sulfate (SO4) dynamics along a toposequence of daily to seasonally flooded coastal salt marsh soils. The soil at the top end  of the salt marsh (with a height of 1.8 m above sea level: a.s.l. and a dense vegetation cover) was salic silty to clayic Typic Sulfaquent, while  the soil at the bottom end (with some salt bushes and a 1.4 m a.s.l.) was sandy to silty Haplic Sulfaquent. The mean (depth: 0-100 cm) values  of pH were around 7, and of redox potentials in the Typic Sulfaquent were ranged from -162 to +104 mV during all the seasons. The annual average emissions of CH4 were almost 10 fold higher (0.3 g m-2 a-1) in Haplic Sulfaquent than that (0.03 g m-2 a-1) of the Typic Sulfaquent. In all the profiles, the concentrations of CH4 were very low and varied significantly (p≥0.05) with the seasons and soil depths. The concentrations of CH4 showed no dependence to temperature. The SO4 contents were observed maximum in the Typic Sulfaquent followed by Haplic  Sulfaquent during all the seasons. There is no noticeable correlation was obtained between the SO4 and CH4 concentrations. Moreover, even CH4 was determined at depths where the SO4 concentration in the soil solution was around 1200 mg SO4 L-1.Bangladesh J. Sci. Ind. Res. 52(3), 177-186, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34152
      Issue No: Vol. 52, No. 3 (2017)
  • Culture technique of endangered Notopterus chitala (Hamilton, 1822) with
           Oreochromis niloticus for domestication in pond habitat

    • Authors: MA Samad, M Farjana, SK Chatterjee, MM Rahman, SC Barman
      Pages: 187 - 194
      Abstract: An experiment was carried out for a period of 180 days (1stApril to 30 th September) in 2015 to find out a the suitable culture technique of Notopterus chitala (Hamilton-Buchanan, 1882) in pond habitats located at the Hatchery Complex, Department of Fisheries, University of Rajshahi. The experiment was conducted under 3 treatments (T1: only feed used, T2: feed and Tilapia, T3: only Tilapia used) each with 3 replications. Mean stocking weight of Notopterus chitala was 21.4±0.27 g for all treatments. Basal fertilization was same for all the treatments (cowdung: 1235 kg/ha, urea: 50 kg/ha, TSP: 50 kg/ha). Feed (8-10% of body weight) and fertilized (weekly with cowdung 1000 kg/ha,) based farming was followed in all treatments. Mean value of water temperature varied from 32.53±0.04°C (T2) to 32.57±0.03°C (T1) to transparency 32.34±0.68 (T2) cm to 33.87±0.37cm (T3), Dissolved Oxygen 4.76±0.04mg/l (T3) to 4.91±0.04 mg/1 (T1), pH 7.62±0.03 (T1) to 7.70±0.05 (T2) , alkalinity 127.04±1.4 mg/l (T2) to 131.46±0.92 mg/1 (T3),respectively. The mean value of different growth parameters varied with the followings-final weight 380±.88 g (T1) to  645 ± .57g (T2), weight gain 358.6 ± .14g (T1) to 623.60± .02g (T2), SGR (% bwd-1) 3.84±.02 (T1) to 4.54± .01(T2).The survival rate between 93.33±6.67 % (T1) to 100 ± 0.00 %(T2), and the total production of Notopterus chitala was found 1593.2±2.46(T2) Kg/ha/180 days which was significantly higher than that of others treatments 938.6 ±31.29 (T1), 1133.7±62.98  (T3) respectively. The growth parameters are significantly different among the treatments. The total production of Tilapia was observed 1790.18±0.7(T2) kg/ha/180 days which was higher than 1584.9±0.39(T3).The combined production (Chital + Tilapia) of fish was obtained 3383.2±2.86(T2) which was higher than those of 938.6 ±31.29(T1) and 2718.6±50.1(T3) respectively.The total income raised from 394200±6.36BDT/ha (T1) to 736548±24.04 BDT/ha (T2), net profit 209180±12.49BDT/ha (T1) to 468258±17.63BDT/ha (T2) and CBR 1.13±.01 (T1) to 1.75±.02 (T2) respectively and all growth parameters were significantly (P<0.05) different among the treatments. Treatment T2 (feed and Tilapia used) was proved best in terms of production and economics of N. chitala culture in pond habitats based on experimental results.Bangladesh J. Sci. Ind. Res. 52(3), 187-194, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34154
      Issue No: Vol. 52, No. 3 (2017)
  • Physiological and biochemical characteristics of different tomato grown in
           Rajshahi region of Bangladesh

    • Authors: M Ibrahim, MOH Helali, AKMS Alam, D Talukder, S Akhter
      Pages: 195 - 200
      Abstract: Physiological and biochemical characteristics of nine different tomato cultivars were studied in order to select which of the cultivar has the overall best quality. The tomato cultivars (Lalima, Manik, Summer, Deshy, Anupama, Jhumka, Chaity, Bizly and Lovely) were collected from different places of Rajshahi region. Those cultivars showed variability in physiological and biochemical characteristics. The range for the tomato quality parameters are as follows: fruit  weight (44.76-111.70g), juice (81.25-69.94%), dry matter (7.58-9.92%), moisture content (90.08-92.42%), ash (0.438-0.530%), acidity (0.083-0.129% as citric acid), β-carotene (298-380µg/100g), vitamin C (6.98-11.43 mg/100g ), total sugar  (3.45-4.52%), reducing sugar (1.21-1.56%), non reducing sugar  (2.24-2.97%), protein (0.525-0.654%), iron (0.152-0.215 mg/100g), phosphorous (21.94-28.31 mg/100g), calcium (38.15-42.31 mg/100g), carbohydrate (4.18-6.24%), starch   (0.16-0.21%), and so on. Bizli tomato cultivar has the best overall qualities with respect to fruit colour, fruit size, fruit pulp taste. These data of quality characteristics of tomato provide important information for consumers, producers and industrial processor for plantation and processing industry.Bangladesh J. Sci. Ind. Res. 52(3), 195-200, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34155
      Issue No: Vol. 52, No. 3 (2017)
  • Nutritional and chemical compositions of two underutilized Vegetables in

    • Authors: FB Borokini, MT Olaleye, L Lajide
      Pages: 201 - 208
      Abstract: The proximate, mineral and anti-nutritional compositions of Basella alba and Senecio biafrae were determined. The vegetables were also screened for phytochemicals and the polyphenols present in them analyzed using reverse-phase high performance liquid chromatography. The results of proximate in % were: moisture (11.75, 12.24), crude protein (19.22, 20.17), ash (20.95, 21.48), total dietary fibre (16.57, 22.51), crude fat (10.49, 13.34) and carbohydrate (21.02, 10.26). Dietary minerals were present in appreciable quantities: sodium (660, 300), potassium (7800, 1430), calcium (1050, 1150), magnesium (350, 310), zinc (41, 34), copper (0.10, 1.80), iron (1.40, 2.00), and phosphorus (20.50, 13.40) in mg/100g respectively. Lead was not detected in Basella alba but in trace amount in  Senecio biafrae (0.002). Vitamins in µg/g were: vitamin A (13.21, 9.78), thiamine (315.22, 315.22), ascorbic acid (14.86, 9.85) and tocopherol (49.89, 192.38). Amino acid profile of the two vegetables showed appreciable essential: histidine (2.14, 2.27), isoleucine (3.01, 3.43), leucine (7.75, 8.85), lysine (2.92, 4.62), methionine (0.89, 0.99), phenylalanine (3.88, 4.22), threonine (2.84, 3.15) and non essential amino acids: valine (3.13, 3.71), arginine (3.97, 4.49), aspartic acid (7.32, 8.28), serine (2.09, 2.22), glutamic acid (10.15, 10.83), proline (2.24, 2.65), glycine (3.07, 3.56), alanine (3.49, 4.03), cysteine (0.79, 0.86), tryosine (2.22, 2.70). Antinutrient factors present in mg/g were: tannin (2.34, 1.45), oxalate (1.17, 0.45) and phytate (1.03, 0.08). Caffeic acid was, most aboundant phenolic acid in both vegetables (32.74, 37.51); and their flavonoid compositions were similar except for catechin which was lacking in Senecio biafrae. The nutritional and nutraceutical potential of both vegetables are good and could be exploited to promote health.Bangladesh J. Sci. Ind. Res. 52(3), 201-208, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34156
      Issue No: Vol. 52, No. 3 (2017)
  • Characterization of onion soft rot bacteria in Bangladesh

    • Authors: MM Rahman, MAA Khan, IH Mian, AM Akanda, MZ Alam
      Pages: 209 - 220
      Abstract: A study was undertaken for characterization and identification of the soft rot causing bacterial pathogens of onion. Bacterial pathogens were isolated from soft rotted stored onions of different varieties and locations of Bangladesh. Altogether 73 bacterial isolates were isolated from soft rotted onions. Among them, twelve soft rot-positive isolates were selected for characterization and identification on the basis of more virulence. Physiological and biochemical tests were performed following standard methods for characterization and identification of selected soft rot bacterial isolates. Seven isolates namely O-03, O-18, O-69, O-72, O-130, O-156 and O-180 were identified as Pectobacterium carotovorum subsp. carotovorum (E. carotovora subsp. carotovora), two isolates O-101 and O-118 were identified as E. chrysanthemi and three isolates O-05, O-14 and O-15 were the members of Burkholderia cepacia.Bangladesh J. Sci. Ind. Res. 52(3), 209-220, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34157
      Issue No: Vol. 52, No. 3 (2017)
  • Nutritional status of adolescent girls in a rural area of Bangladesh: A
           cross sectional study

    • Authors: A Begum, KN Sharmin, MA Hossain, N Yeasmin, T Ahmed
      Pages: 221 - 228
      Abstract: The improvement of adolescent nutritional status may help address the reduction of all forms of malnutrition in Bangladesh. This is because at this stage, they experience a growth spurt thus increasing the need for most nutrients, needed for growth and reproductive health. The objective of this research was to assess the nutritional status of adolescent girls in rural areas of Bangladesh and find out the associated factors that affects nutritional status. A cross sectional study was carried out among 106 adolescent girls of Nobabpur village in Comilla district. A questionnaire was developed to obtain demographic information, food intake pattern and anthropometric measures such as weight, height with measuring instruments. About 80% were found normal according to BMI where about 13% adolescent girls were malnourished, below the cut off value 18.5. Place of residence, education of adolescent girls, their family expenditure to food and improper knowledge on food and nutrition were identified as underlying causes. Nutritional profiles of adolescent girl can be improved by implementing effective nutrition education program, providing supplementary food, facilitating primary health care program and creating awareness about nutritional knowledge. Severely malnourished adolescent girl in the selected area should be identified as early as possible and brought under supplementary feeding program.Bangladesh J. Sci. Ind. Res. 52(3), 221-228, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34158
      Issue No: Vol. 52, No. 3 (2017)
  • Pectin from ripe peels of mango cultivars

    • Authors: K Nahar, MZ Haque, K Nada, MN Uddin, M Abdullah Al Mansur, N Khatun, SA Jabin
      Pages: 229 - 238
      Abstract: The present study focused on the influence of different extraction conditions of pectin isolated from ripe mango peel of four Bangladeshi mango varieties (Amrapali, Fazlee, Langra & Kharsapat). The correlation between biochemical properties and protein content were also observed. Five different extraction conditions were applied where the optimum conditions for highest yield and purity were ‘H2SO4-(NH4)2SO4 buffer /pH 1.5 /80 °C /1h /Amrapali’ and ‘Tem. 99.8 °C/ HCl-NaOH buffer/ pH1.5/ 1h/ Amrapali’ respectively. The best source among four varieties was Langra as it contained highest purity (AUA, 72.27±0.03%) under a specific condition.  The best extractant was HCl-NaOH buffer as the pectin extracting with it contained minimum impurity (3.10±0.06). This study also showed that pectin from Amrapali contained both Low and High Methoxyl pectin with the same extraction condition other than extractant. The proximate, elementary, microbiological, spectroscopical and structural investigations were also conducted in this study.Bangladesh J. Sci. Ind. Res. 52(3), 229-238, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34159
      Issue No: Vol. 52, No. 3 (2017)
  • Application of Laney control chart in assessment of microbiological
           quality of oral pharmaceutical filterable products

    • Authors: ME Eissa
      Pages: 239 - 246
      Abstract: Evaluation of microbiological quality of pharmaceutical product is an important criterion for safe release of the dosage form to the drug market. Monitoring of the stability of monitored characteristic attribute is crucial to judge the degree of compliance of the manufacturing processes to reproducible procedures and good manufacturing practice (GMP). Two non-sterile liquid oral products were monitored during ten months of study for their microbiological stability characteristics using control charts. Since total viable count (TVC) results did not follow any distribution type, the application of Laney Uꞌ chart was found to be the best approach in such instances using relevant statistical software packages. The results of TVC for both products failed to follow the closest distribution in distribution fitting test at α = 0.05. Interestingly, both products demonstrated several spots of out-of-control (OOC) states, although none of their batches showed out-of-specification (OOS) results. These OOC conditions require further investigations in order to provide corrective/preventive actions for improvement of bioburden stability of the manufactured pharmaceuticals. Accordingly, Laney attribute control chart may be regarded as very handy tool to evaluate microbiological characteristic of pharmaceutical dosage form, when results show significant over-dispersion or under-dispersion pattern in data distribution.Bangladesh J. Sci. Ind. Res. 52(3), 239-246, 2017
      PubDate: 2017-10-03
      DOI: 10.3329/bjsir.v52i3.34160
      Issue No: Vol. 52, No. 3 (2017)
School of Mathematical and Computer Sciences
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