Isolation And Quantification Of Flavonoids From Kigelia Africana (Lam.) Benth Fruit And Bark And Their Antiradical And Antibacterial Activities,
2021
Bindura University of Science Education
Isolation And Quantification Of Flavonoids From Kigelia Africana (Lam.) Benth Fruit And Bark And Their Antiradical And Antibacterial Activities, Pamhidzai Dzomba, George Mhini
Tanzania Journal of Science
Kigelia africana is an evergreen deciduous tree used in Zimbabwe folklore medicine for wound and diabetes ulcers healing. This paper reports the isolation and quantification of flavonoids from stem barks and fruits of K. africana as well as their antibacterial and antiradical activities. Flavonoids in ethanol and ethyl-acetate extracts were quantified using UV-Vis spectrophotometry and were found to be 213.490 ± 0.001 mg/L and 36.614 ± 0.001 mg/L, respectively per quercetin equivalent. The preparative and analytical thin layer chromatography was used to profile the flavonoids from fruits and barks using ethyl-acetate and petroleum ether (3:7 v/v) mobile solvent systems. Ethanol …
Antibacterial Activities Of Hyphaene Thebaica (Doum Palm) Fruit Extracts Against Intestinal Microflora And Potential Constipation Associated Pathogens In Yola Metropolis, Nigeria,
2021
University of Dar es Salaam
Antibacterial Activities Of Hyphaene Thebaica (Doum Palm) Fruit Extracts Against Intestinal Microflora And Potential Constipation Associated Pathogens In Yola Metropolis, Nigeria, Joel Ewansiha, Chidimma Ugo, Damaris Kolawole, Lilian Orji
Tanzania Journal of Science
This study aimed at determining the antibacterial activities of Hyphaene thebaica fruit extracts against some intestinal constipation associated bacteria. Qualitative analysis of some phytochemical constituents, agar well diffusion and broth dilution methods were used to determine the zones of inhibition and minimum inhibitory concentration (MIC) of the plant extracts. Phytochemical components viz flavonoids, saponins, terpenoids, tannins, phenols, alkaloids, glycosides and steroids were detected in the plant extracts, and the test organisms were susceptible to the plant extracts. The diameter zone of inhibition (DZI) obtained with n-hexane extract ranged from 15.10 ± 0.51 mm to 2.0 ± 0.55 mm against K. …
Forest Structure And Climate Change Mitigation Potential: A Case Of Wilolesi And Ikonongo Forested Hills In Iringa Municipality, Tanzania, Evarist Fundisha, Hamidu Seki, Anasia Saria
Tanzania Journal of Science
Vegetation plays major roles in carbon storage and ecosystem functioning by modifying the rate of carbon fluxes thereby mitigating climate change. However, the focus of assessing the potentials for different vegetation on climate change mitigation has for so long been conducted outside cities, towns and municipalities. This study was conducted in Wilolesi and Ikonongo hills located in Iringa as representative of the Municipality forested hills in Tanzania to assess vegetation structure and their potential for climate change mitigation. Random sampling technique was employed to establish 20 rectangular plots of 20 m x 40 m (0.08 ha) in each hill to …
Effects Of Drying, Packaging Conditions And Storage Time On Proximate Composition Of Chia Seeds (Salvia Hispanica),
2021
Department of Food Science and Technology, University of Dar es Salaam, P. O. Box 35134, Dar es Salaam, Tanzania
Effects Of Drying, Packaging Conditions And Storage Time On Proximate Composition Of Chia Seeds (Salvia Hispanica), Ashura Katunzi-Kilewela, Leonard Rweyemamu, Oscar Kibazohi, Lilian Kaale
Tanzania Journal of Science
The effects of drying, packaging conditions and storage time on proximate composition of chia seeds were investigated. Chia seeds were dried at 63 °C for 30 min (low-temperature long time–LTLT) and at 75 °C for 30 s (high-temperature short time-HTST) using dry oven, air/vacuum-packed and stored for ten weeks. The effect of heat processing (drying) on chia seeds had significant difference (p < 0.05) in ash, fiber and fat contents while there was no significant difference (p > 0.05) in moisture and protein contents. Except for fiber content, there was no significant difference (p > 0.05) in moisture, ash, fat and protein of chia seeds dried at LTLT and HTST before storage. During storage time, there was …
Effects Of Plant Species Diversity And Biomass On Grazing Patch Selection By Semi Free-Ranging Cattle,
2021
Department of Ecosystems and Conservation, Sokoine University of Agriculture, P. O. Box 3010 Chuo Kikuu, Morogoro, Tanzania.
Effects Of Plant Species Diversity And Biomass On Grazing Patch Selection By Semi Free-Ranging Cattle, Samora Andrew
Tanzania Journal of Science
Studies examining forage selection by large herbivores have generally focused on single herbivore-plant relationships and few studies link plant species diversity with large herbivore feeding preferences, particularly in species-rich ecosystems. A study was therefore conducted to examine how herbaceous plant biomass, species richness, diversity and evenness, together with elevation and distances to houses, agricultural fields and cattle holding-pen areas (kraals), predict cattle grazing intensity at small (0.5 x 0.5 m) and large (20 x 50 m) patches by semi free-ranging indigenous cattle in Kilombero Valley Floodplain wetland Tanzania. Results showed that cattle grazed patches with high species richness and intermediate …
Physicochemical And Sensory Evaluation Of Mixed Juices From Banana, Pineapple And Passion Fruits During Storage,
2021
Victor Vicent Matabura Department of Food Science and Technology, University of Dar es Salaam, P. O. Box 35134, Tanzania
Physicochemical And Sensory Evaluation Of Mixed Juices From Banana, Pineapple And Passion Fruits During Storage, Victor Matabura, Oscar Kibazohi
Tanzania Journal of Science
Juices from fresh fruits offer various health benefits, including strengthening the immune system and preventing diseases. Mixed fruit juices tend to have good nutritional contents and organoleptic properties like colour, flavour, taste, and overall appeal of different fruits. This work investigated the physicochemical and sensory attributes of fruit juice of low viscosity banana juice blended with pineapple and passion juices. The prepared juices were pasteurised at 92 °C for 15 s, bottled in air-tight glass bottles, and subsequently stored in two different conditions: an ambient temperature of approximately 28 ± 2 °C and a fridge at 4 ºC for one …
Corrosion Inhibition Of Mild Steel In Seawater By 2,4,6-Triamino-3-Pentadecylphenyl Acetate Derived From Cashew Nut Shell Liquid,
2021
University of Dar es Salaam
Corrosion Inhibition Of Mild Steel In Seawater By 2,4,6-Triamino-3-Pentadecylphenyl Acetate Derived From Cashew Nut Shell Liquid, Emanuel Ricky, Esther Lugwisha, Joseph Philip
Tanzania Journal of Science
The corrosion inhibition performance of 2,4,6-triamino-3-pentadecylphenyl acetate on mild steel in seawater at stationary condition, 30 °C and pH 8 was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy. The maximum inhibition efficiency of 93% was found in the presence of 300 ppm of 2,4,6-triamino-3-pentadecylphenyl acetate for both potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The potentiodynamic polarization curves show that 2,4,6-triamino-3-pentadecylphenyl acetate acts as a mixed type inhibitor which influences more the anodic processes. The Nyquist plots revealed that the polarization resistance (Rp) increases whereas the double-layer capacitance (Cdl) and corrosion current density (icorr) decrease as the concentrations of …
Wastewater Clarification And Microbial Load Reduction Using Agro-Forestry And Agricultural Wastes,
2021
Department of Chemistry, Chancellor College, University of Malawi, P. O Box 280, Zomba, Malawi
Wastewater Clarification And Microbial Load Reduction Using Agro-Forestry And Agricultural Wastes, Joel Njewa, Ephraim Vunain, Timothy Biswick
Tanzania Journal of Science
Five agro-wastes, namely: cassava peels, Irish potato peels, Jatropha curcas seeds, Moringa oleifera seeds and rice husks were investigated as plant-based coagulants for turbidity and microbial load removal from sewage wastewater. Moringa oleifera and Jatropha curcas seeds before usage were defatted with 95% ethanol and the active coagulating component was extracted with 1.0 M NaCl. For the other three agro-wastes, their ashes were evaluated for turbidity and microbial load removal. The ash was prepared through pyrolysis of the raw biomass at a temperature of 800 °C for 3 h. The effect of pH, coagulant dose, settling time on turbidity reduction …
Effectiveness Of Common Household Washing Of Tomatoes On The Removal Of Pesticide Residues,
2021
University of Dar es Salaam
Effectiveness Of Common Household Washing Of Tomatoes On The Removal Of Pesticide Residues, John Mahugija, Flaviana Ngabala, Faustin Ngassapa
Tanzania Journal of Science
The effectiveness of common household washing processes of tomatoes on the removal of pesticide residues was investigated in Iringa, Tanzania. Analyses of cleaned-up extracts were carried out using gas chromatography-mass spectrometry (GC-MS). Nine pesticide residues were detected in unwashed and washed samples. The compounds detected were chlorothalonil, pirimiphos-methyl, chlorpyrifos, profenofos, endosulfan sulphate, endosulfan ether, lambda cyhalothrin, cypermethrin and metalaxyl. The concentrations of chlorothalonil, pirimiphos-methyl, chlorpyrifos, profenofos, cypermethrin and lambda cyhalothrin in some unwashed and washed samples exceeded the maximum residue limits (MRLs). Washing reduced the concentrations of chlorothalonil and endosulfan sulphate in tomatoes by 22.2–98.0% (mean = 70%) and 33.3–55.6% …
Carbon Isotope Discrimination, Selection Response, And Forage Production Of Tall Fescue In Contrasting Environments,
2021
U.S. Department of Agriculture
Carbon Isotope Discrimination, Selection Response, And Forage Production Of Tall Fescue In Contrasting Environments, R. C. Johnson, Andrew A. Hopkins, M. A. Evans
IGC Proceedings (1977-2023)
No abstract provided.
Selection Of Panicum Maximum Genotypes Under Different Shade Levels,
2021
EMBRAPA, Brazil
Selection Of Panicum Maximum Genotypes Under Different Shade Levels, Liana Jank, M. M. Gontijo Neto, V. A. Laura, Rosangela M. S. Resende, Cacilda Borges Do Valle
IGC Proceedings (1977-2023)
No abstract provided.
Development Of Improved Wheatgrasses For The Southern Great Plains Of The Usa,
2021
Samuel Roberts Noble Foundation
Development Of Improved Wheatgrasses For The Southern Great Plains Of The Usa, Andrew A. Hopkins
IGC Proceedings (1977-2023)
No abstract provided.
The Development Of Talish Clover (Trifolium Tumens Steven Ex M. Bieb.) As A Potential New Perennial Pasture Legume For Low Rainfall Temperate Environments,
2021
Tasmanian Institute of Agricultural Research, Australia
The Development Of Talish Clover (Trifolium Tumens Steven Ex M. Bieb.) As A Potential New Perennial Pasture Legume For Low Rainfall Temperate Environments, Eric J. Hall, A. M. Hurst
IGC Proceedings (1977-2023)
No abstract provided.
Dactylis Glomerata Ssp. Hispanica (Roth) Nyman, Cultivars Uplands And Sendace, Drought Tolerant Forage Grasses For Temperate Environments,
2021
Tasmanian Institute of Agricultural Research, Australia
Dactylis Glomerata Ssp. Hispanica (Roth) Nyman, Cultivars Uplands And Sendace, Drought Tolerant Forage Grasses For Temperate Environments, Eric J. Hall, P. A. Lane, A. M. Hurst
IGC Proceedings (1977-2023)
No abstract provided.
Germplasm Improvement In Pasture Legumes By Developing Core Collections,
2021
University of Western Australia, Australia
Germplasm Improvement In Pasture Legumes By Developing Core Collections, K. Ghamkhar, R. Snowball, M. Ryan, Ph. Nichols, R. Appels
IGC Proceedings (1977-2023)
No abstract provided.
Techniques For Artificial Hybridization In The Self‐Pollinated Forage Legume Bituminaria Bituminosa And The Cross‐Pollinated Forage Legume Hedysarum Coronarium,
2021
University of Western Australia, Australia
Techniques For Artificial Hybridization In The Self‐Pollinated Forage Legume Bituminaria Bituminosa And The Cross‐Pollinated Forage Legume Hedysarum Coronarium, D. Real, K. Foster, Enrique Correal, D. Kidd, P. Mendez
IGC Proceedings (1977-2023)
No abstract provided.
Establishment Of Perennial Forage Crops Using Fast‐Growing Short‐Lived Grasses As Companion Crops,
2021
University of Saskatchewan, Canada
Establishment Of Perennial Forage Crops Using Fast‐Growing Short‐Lived Grasses As Companion Crops, Bruce E. Coulman, Cheryl Duncan, Tim Nelson, Arend Kleinhout
IGC Proceedings (1977-2023)
No abstract provided.
The Forage Selection Program At The Cerrados Research Center--33 Years Of Contributions For The Tropics,
2021
EMBRAPA, Brazil
The Forage Selection Program At The Cerrados Research Center--33 Years Of Contributions For The Tropics, Marcelo A. Carvalho, Claudio T. Karia, A. O. Barcellos, G. G. Leite, Lourival Vilela, Allan K. B. Ramos, Francisco Duarte Fernandes, S. V. Paula-Moraes, G. B. Martha Júnior, R. Guimarães Júnior
IGC Proceedings (1977-2023)
No abstract provided.
Tiller Development Of Three Bromegrass (Bromus) Species Following Defoliation,
2021
University of Saskatchewan, Canada
Tiller Development Of Three Bromegrass (Bromus) Species Following Defoliation, Biligetu, B. E. Coulman
IGC Proceedings (1977-2023)
No abstract provided.
Heritability And Genetic Correlations Of Forage Yield Traits In Alfalfa (Medicago Sativa L.) For Central Valley Of Mexico,
2021
Universidad Autonoma Chapingo, Mexico
Heritability And Genetic Correlations Of Forage Yield Traits In Alfalfa (Medicago Sativa L.) For Central Valley Of Mexico, B. Alarcon‐Zuniga, R. Perdomo‐Gomez
IGC Proceedings (1977-2023)
No abstract provided.
