The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
J.-m. Lebeault - One of the best experts on this subject based on the ideXlab platform.
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Pressure measurement to evaluate ethanol or lactic acid Production during glucose fermentation by yeast or heterofermentative bacteria in pure and mixed culture.
Applied Microbiology and Biotechnology, 2001Co-Authors: M. Wick, J.-m. LebeaultAbstract:A rapid and simple technique to follow CO2 release during fermentation of glucose by heterofermentative bacteria or yeasts was used in order to evaluate ethanol and lactate Production in pure and mixed cultures of yeast and bacteria. In pure cultures, Good correlations were found between gas pressure variations (ΔP) and ethanol or lactate Production by yeasts or heterofermentative bacteria, and ratios between ΔP and ethanol or lactate produced could be established. In mixed cultures, ratios between maximal ΔP and total amount of glucose consumed were determined. It was thus possible to evaluate the amount of glucose that was consumed by each strain and then deduce the bacterial lactate Production. Good results were obtained for mixed cultures of yeast and homofermentative bacteria. This technique may be useful to evaluate the activity of strains in mixed cultures of yeast and lactic acid bacteria.
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Pressure measurement to evaluate ethanol or lactic acid Production during glucose fermentation by yeast or heterofermentative bacteria in pure and mixed culture.
Applied microbiology and biotechnology, 2001Co-Authors: M. Wick, J.-m. LebeaultAbstract:A rapid and simple technique to follow CO2 release during fermentation of glucose by heterofermentative bacteria or yeasts was used in order to evaluate ethanol and lactate Production in pure and mixed cultures of yeast and bacteria. In pure cultures, Good correlations were found between gas pressure variations (deltaP) and ethanol or lactate Production by yeasts or heterofermentative bacteria, and ratios between deltaP and ethanol or lactate produced could be established. In mixed cultures, ratios between maximal deltaP and total amount of glucose consumed were determined. It was thus possible to evaluate the amount of glucose that was consumed by each strain and then deduce the bacterial lactate Production. Good results were obtained for mixed cultures of yeast and homofermentative bacteria. This technique may be useful to evaluate the activity of strains in mixed cultures of yeast and lactic acid bacteria.
Veronica Olufunmilola Ajegbomogun - One of the best experts on this subject based on the ideXlab platform.
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Library service delivery, information literacy knowledge: a modelling factor for societal growth
2020Co-Authors: Fredrick Olatunji Ajegbomogun, Veronica Olufunmilola AjegbomogunAbstract:Information is the bedrock of knowledge development and is expected to achieve societal growth. One of the most obvious trends in recent times has been the rapid growth of information that changes the economy and its attendant structures. Over the years, the developing countries are still not able to match up with this global phenomenon. Lifestyles in most of the developing world have continued to deteriorate simply because of the insensitivity of the government to citizens’ plight. Many people are walloping in abject poverty, debt crises, communal violence, diseases, food shortage and malnutrition, etc. Therefore, this study will focus on the role of library on service delivery, information literacy knowledge and the roles of stakeholders that would encourage society development. Knowledge preservation, access to information and dissemination has rapidly changed the way people seek and use information. The study concluded that the application of IT will encourage self sufficiency in food Production, Good health and rapid development among the citizenry.Keywords: Library service delivery, Information literacy, Societal growth, Nigeria
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The librarys role in developing information literacy and societal growth
International Journal of Library and Information Science, 2015Co-Authors: Fredrick Olatunji Ajegbomogun, Veronica Olufunmilola AjegbomogunAbstract:Information is the bedrock of knowledge development and is expected to achieve societal growth. One of the most obvious trends in recent times has been the rapid growth of information that changes the economy and its attendant structures. Over the years, the developing countries are still not able to match up with this global phenomenon. Lifestyles in most of the developing world have continued to deteriorate simply because of the insensitivity of the government to citizens’ plight. Many people are walloping in abject poverty, debt crises, communal violence, diseases, food shortage and malnutrition, etc. This study focused on the library’s role in developing information literacy and societal growth. Knowledge acquisition, preservation, access to information and dissemination always enhanced development and will continue to change the way people seek and use information. The study, therefore, concluded that the application of IT in all sectors of the economy will encourage self sufficiency in food Production, Good health and rapid development among the citizenry. Key words: Library, information literacy, societal growth, Nigeria.
M E Azim - One of the best experts on this subject based on the ideXlab platform.
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effects of stocking density of freshwater prawn macrobrachium rosenbergii and addition of different levels of tilapia oreochromis niloticus on Production in c n controlled periphyton based system
Aquaculture, 2009Co-Authors: M Asaduzzaman, M A Wahab, M C J Verdegem, M N Mondal, M E AzimAbstract:Abstract An on-station trial was conducted to evaluate the effect of stocking density of freshwater prawn and addition of different levels of tilapia on Production in carbon/nitrogen (C/N) controlled periphyton based system. The experiment had a 2 × 3 factorial design, in which two levels of prawn stocking density (2 and 3 juveniles m − 2 ) were investigated in 40 m 2 earthen ponds with three levels of tilapia density (0, 0.5 and 1 juveniles m − 2 ). A locally formulated and prepared feed containing 30% crude protein with C/N ratio close to 10 was applied considering the body weight of prawn only. Additionally, tapioca starch was applied to the water column in all ponds to increase C/N ratio from 10 (as in feed) to 20. Increasing stocking density of tilapia decreased the chlorophyll a concentration in water and total nitrogen in sediment, and increased the bottom dissolved oxygen. The concentrations of inorganic nitrogenous species (NH 3 –N, NO 2 –N and NO 3 –N) were low due to maintaining a high C/N ratio (20) in all treatment ponds. Increasing prawn density decreased periphyton biomass (dry matter, ash free dry matter, chlorophyll a ) by 3–6% whereas tilapia produced a much stronger effect. Increasing stocking density of freshwater prawn increased the total heterotrophic bacterial (THB) load of water and sediment whereas tilapia addition decreased the THB load of periphyton. Both increasing densities of prawn and tilapia increased the value of FCR. Increasing prawn density increased gross and net prawn Production (independent of tilapia density). Adding 0.5 tilapia m − 2 on average reduced prawn Production by 12–13%, and tilapia addition at 1 individual m − 2 produced a further 5% reduction (independent of prawn density). The net yield of tilapia was similar between 0.5 and 1 tilapia m − 2 treatments and increased by 8.5% with increasing stocking density of prawn. The combined net yield increased significantly with increasing stocking density of prawn and tilapia addition. The significantly highest benefit cost ratio (BCR) was observed in 0.5 tilapia m − 2 treatment but freshwater prawn density had no effect on it. Therefore, both stocking densities (2 and 3 juveniles m − 2 ) of prawn with the addition of 0.5 tilapia m − 2 resulted in higher fish Production, Good environmental condition and economic return and hence, polyculture of prawn and tilapia in C/N controlled periphyton based system is a promising options for ecological and sustainable aquaculture.
M. Wick - One of the best experts on this subject based on the ideXlab platform.
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Pressure measurement to evaluate ethanol or lactic acid Production during glucose fermentation by yeast or heterofermentative bacteria in pure and mixed culture.
Applied Microbiology and Biotechnology, 2001Co-Authors: M. Wick, J.-m. LebeaultAbstract:A rapid and simple technique to follow CO2 release during fermentation of glucose by heterofermentative bacteria or yeasts was used in order to evaluate ethanol and lactate Production in pure and mixed cultures of yeast and bacteria. In pure cultures, Good correlations were found between gas pressure variations (ΔP) and ethanol or lactate Production by yeasts or heterofermentative bacteria, and ratios between ΔP and ethanol or lactate produced could be established. In mixed cultures, ratios between maximal ΔP and total amount of glucose consumed were determined. It was thus possible to evaluate the amount of glucose that was consumed by each strain and then deduce the bacterial lactate Production. Good results were obtained for mixed cultures of yeast and homofermentative bacteria. This technique may be useful to evaluate the activity of strains in mixed cultures of yeast and lactic acid bacteria.
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Pressure measurement to evaluate ethanol or lactic acid Production during glucose fermentation by yeast or heterofermentative bacteria in pure and mixed culture.
Applied microbiology and biotechnology, 2001Co-Authors: M. Wick, J.-m. LebeaultAbstract:A rapid and simple technique to follow CO2 release during fermentation of glucose by heterofermentative bacteria or yeasts was used in order to evaluate ethanol and lactate Production in pure and mixed cultures of yeast and bacteria. In pure cultures, Good correlations were found between gas pressure variations (deltaP) and ethanol or lactate Production by yeasts or heterofermentative bacteria, and ratios between deltaP and ethanol or lactate produced could be established. In mixed cultures, ratios between maximal deltaP and total amount of glucose consumed were determined. It was thus possible to evaluate the amount of glucose that was consumed by each strain and then deduce the bacterial lactate Production. Good results were obtained for mixed cultures of yeast and homofermentative bacteria. This technique may be useful to evaluate the activity of strains in mixed cultures of yeast and lactic acid bacteria.
Li Shan-jie - One of the best experts on this subject based on the ideXlab platform.
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Vanadium Recovery from Vanadium Ore with High Carbon and Silicon Content
Rare Metals and Cemented Carbides, 2020Co-Authors: Li Shan-jieAbstract:A process to produce vanadium pentoxide is introduced from the vanadium ore with high carbon and silicon content,including the main process steps as follows:roasting,sulfuric acid leaching,extraction with P204+TBP+aviation fuel and vanadium precipitation with ammonia.And the technical conditions of the process steps were studied.The vanadium ore is roasted at 500 ℃ for 5 h,ground to a size less than 75 μm and then leached twice with sulfuric acid.As a result,the vanadium leaching rate is up to 96.83%.The V2O5 product with a purity of 98.52% can be obtained and the total vanadium recovery is above 93% after extraction with P204+TBP+aviation fuel and vanadium precipitation with ammonia.The process not only improves the vanadium recovery of the vanadium ore with high silicon and carbon content,but also ensures sustainable Production,Good economic returns and light environmental pollution.
