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匹配条件: “Olutayo M. Adedokun” ,找到相关结果约399729条。
Assessment of Oyster Mushrooms Found on Polluted Soil for Consumption  [PDF]
Olutayo M. Adedokun
Natural Resources (NR) , 2015, DOI: 10.4236/nr.2015.65031
Abstract: Aim: A simulation experiment was carried out in which oyster mushrooms (Pleurotuspulmonarius) was grown on used engine oil. This study was designed to evaluate the remnant hydrocarbon in the sporophore (fruiting body) of?Pleurotuspulmonariusand to assess its suitability for human consumption. Method: The mycelia of the mushroom were used to inoculate Spent Engine Oil (SEO, 10% (v/w)) polluted soil. After four weeks of incubation, fruiting bodies growing on the polluted soil were analyzed for remnant hydrocarbon profile. Results: Results showed that total Polycyclic Aromatic Hydrocarbon (PAH) was 10 mg/kg and Aliphatic Hydrocarbon (AH) was 23 mg/kg. The hydrocarbon profile indicated some AH and PAH were within the non-cancer reference dose while a few others were above the non-cancer daily reference dose range. Conclusion: The detection of some hydrocarbon profile above the non-cancer daily reference dose makes the test-mushroom used for bioremediation not safe for human consumption. This underscores the need for caution in consuming mushrooms found in oil polluted environment.
Maximizing Agricultural Residues: Nutritional Properties of Straw Mushroom on Maize Husk, Waste Cotton and Plantain Leaves  [PDF]
Olutayo M. Adedokun, A. H. Akuma
Natural Resources (NR) , 2013, DOI: 10.4236/nr.2013.48064

The straw mushroom, Volvariella volvacea (Bulliard ex Fries) Singer, (V. volvacea), a tropical and sub-tropical mushroom is an invaluable vegetable. Nutritional properties of straw mushrooms grown on plantain leaves, maize husk and waste cotton were investigated. Aim: The aim of this study was to recommend these agro-wastes for mushroom production by farmers instead of relying solely on seasonal wild hunting, and to promote consumption of the mushroom. Method: Ten percent (10%) of the mushrooms spawn was used to inoculate 500 g of each substrate in plastic baskets. Mushrooms were harvested after twenty days of incubation followed by proximate analysis of the fruiting bodies. Results: Results indicated that the fruiting bodies harvested from the substrates varied significantly (P < 0.05) in carbohydrate, protein, ash and fiber percentage, with maize having the highest value. However, no significant difference was observed in moisture and lipid content. Mushrooms grown on maize substrate showed better nutritional properties compared with other substrates. Conclusion: These agro wastes are recommended for production of V. volvacea

Afieroho O.E,Lawson L,Olutayo M. Adedokun,Emenyonu N
International Research Journal of Pharmacy , 2013,
Abstract: Incidence of tuberculosis infections is on the rise. The cost and length of orthodox treatment regimen coupled with the rise in multidrug resistance cases make the development of more effective and relatively cheaper alternative therapies imperative. The cold percolation method was used with dichloromethane as an extraction solvent to obtain dichloromethane extract of the edible mushroom Pleurotus tuber-regium. The extract was soluble in n-hexane and labeled PTHS. Antituberculosis screening was by using the colorimetric BACTEC MGIT 960 SIRES method. Phyto-constituents determination was by using standard phytochemical test reagents.The PTHS of Pleurotus tuber-regium inhibited the growth of clinical isolates of Mycobacterium tuberculosis at the test concentration of 32.5 μg/ml. Terpenoids and steroids were detected as the phytochemical constituents. This study confirmed the nutraceutical benefits of some edible mushrooms.
Development of a palm nut and fibre separator
Ologunagba F. O.,Olutayo L. A.,Ale M. O.
Journal of Engineering and Applied Sciences , 2010,
Abstract: A palm nut and fibre separator was designed, fabricated and tested. The basic features of the seperator are feeding chute, pulverizing unit, separating unit, discharge outlets and the prime mover. The machine was tested at three different machine angle of tilt (100, 200 and 300), two different levels of moisture content termed (dry and wet) and three levels of fibre discharge openings (5, 10 and 15mm). Test results showed that the machine gave its best work performance with dry mixture at 10mm fibre discharge opening and 200 machine angle of tilt. The throughput capacity, separating efficiency and quality performance efficiency were 201.4kg/hr, 96.3% and 81.2%, respectively. The cost of producing one unit of the palm nut and fibre separator as at the time of fabrication was estimated to be N20,460 (twenty thousand four hundred and sixty Naira) not including the cost of electric motor and the power required for operating the machine.
The Extended Corporate Identity Mix
Olutayo Otubanjo
International Journal of Marketing Studies , 2013, DOI: 10.5539/ijms.v5n1p59
Abstract: Increasingly, industry practitioners now pursue corporate identity as a broad phenomenon spanning various business disciplines. However, very few works within corporate identity literature recognize this belief. As such it appears that literature on corporate identity, for the most part, has been narrowly conceived. The pursuit of corporate identity along the multidisciplinary perspective, especially among industry practitioners, encourages the author to develop what he terms an extended corporate identity mix that recognizes the broad nature of corporate identity. Specifically, the author suggests what he terms the extended corporate identity mix, which broadens the theory of corporate identity mix beyond the enclave of symbolism, behaviour communication, strategy, structure, and culture. Indeed, a major finding in this study is five new channels that contribute significantly to the expression of a firm’s personality, comprising organization storytelling, core competence, visual style, and buyer value. The paper calls on academics to pursue corporate identity studies in such a way that the extended corporate identity mix that emerges from this paper is accommodated.
Conceptual Insight into Generic Corporate Identity in the Banking Industry and a Semiotic Evidence of Its Presence in Professional Services Firms (PSFS)
Olutayo Otubanjo
International Journal of Marketing Studies , 2012, DOI: 10.5539/ijms.v4n6p66
Abstract: Purpose of this paper: This paper aims to provide an insight into the dominant arguments in generic corporate identity literature – and offers evidence of the presence of generic corporate identity in professional services industry. Design/method/approach: Existing literature on generic corporate identity is reviewed leading towards the development of three conceptual perspectives of generic corporate identity, namely active, passive and parenthetic. The weakness of existing theoretical literatures (in relation to their inability to explicate how generic corporate identity develops) is highlighted. Consequently, a new process model grounded on the notion of institutional isomorphism is presented to fill this gap. A semiotic deconstruction of corporate identity statements in annual report and accounts of the big four professional services firms in the United States is presented to provide evidence of the presence and emergence of generic corporate identity in professional services firms. Findings: A number of findings emerged in this study. First are three pedagogical themes of generic corporate identity. Second is a four stage generic identity development process model, which explicates how generic corporate identity emerges. Third, a semiotic deconstruction of some sections of annual report and accounts of the big four professional services firms in the United States supports the presence and emergence of generic corporate identity in professional services firms. Theoretical implication: The introduction of a generic corporate identity process model in this study clarifies how generic corporate identity evolves. This clarification aids the understanding of the development process of generic corporate identity, which until date remains vague, fuzzy and unclear. In addition, the semiotic deconstruction of texts, which gives insight into the presence of generic corporate identity in Professional Services Firms (PSF), takes the argument in marketing literature a step further. Specifically, the outcome of the deconstruction of texts indicates that the problem of generic corporate identity is not a banking problem alone but a professional services issue as well. The study adds to existing knowledge on the theory of generic corporate identity and contributes towards an understanding of corporate identity theory in general. Practical implications: Insights into the elements that influence the development of a generic corporate identity imply that managers can map out plans that enable firms or clients to challenge or avoid the acquisition of generic corporate i
A Discourse Approach to Brand Leadership Management
Olutayo Otubanjo
International Journal of Marketing Studies , 2013, DOI: 10.5539/ijms.v5n2p131
Abstract: This paper examines existing viewpoints on brand leadership management and presents discourse analysis as another efficient, coherent and sustainable approach to this concept. Importantly, existing works on brand leadership management are critiqued – opening up a gap in the literature. Consequently, a discursive brand leadership model that advocates the action of talk via corporate communications following the delivery of a brand promise is presented. It is hoped that this study would help in creating a greater understanding of brand leadership.
Embedding Theory in Corporate Identity through the Social Construction Lens
Olutayo Otubanjo
International Journal of Business and Management , 2012, DOI: 10.5539/ijbm.v7n22p62
Abstract: This paper strengthens the concept of corporate identity by embedding it with the social constructionist theory. This objective is accomplished through the integration of core arguments within Berger and Luckman’s social constructionist epistemology with important viewpoints present within a variety of corporate identity models. Importantly, the outcome of the integration exercise reveals seven thematic points of interconnectivity between social constructionism and corporate identity. It is hoped that these points on interconnectivity would lay a foundation for further studies on how the concept of corporate identity can be further strengthened with theory.
Theorising the Interconnectivity between Corporate Social Responsibility (CSR) and Corporate Identity
Olutayo Otubanjo
Journal of Management and Sustainability , 2012, DOI: 10.5539/jms.v3n1p74
Abstract: Corporate social responsibility (CSR) and corporate identity (CI) concepts have grown over the years as distinct bodies of knowledge with seemingly divergent objectives. The recent rise in corporate social reporting among national and multinational business organisations suggests that both concepts have more in common that unite than divide them. This paper explores theoretical literature concerning the meaning of corporate identity and CSR, fusing these theoretical discourses into a cohesive construct – “CSR Identity”. It develops a working definition for the construct and explores the research and managerial implications of this emergent construct in relation to business competitiveness. It is hoped that this study will extend the current discourse in both CI and CSR and provide an innovative approach for constructing CSR Identity for firms in the business environment.
Heavy Metals and Antibiotics Susceptibility Profiles of Staphylococcus aureus Isolated from Several Points Receiving Daily Input from the Bodija Abattoir in Ibadan, Oyo State, Nigeria  [PDF]
Abimbola O. Adekanmbi, Olutayo I. Falodun
Advances in Microbiology (AiM) , 2015, DOI: 10.4236/aim.2015.513091
Abstract: Indiscriminate and unguided discharge of untreated wastewater especially from abattoirs can constitute a public health threat and also stimulate the onset of co-resistance to metal and antibiotics in environmental microorganisms. It has been shown that microorganisms especially bacteria that have the capacity to resist antibiotics and heavy metals, may constitute a public health threat. This study was therefore conducted to determine the susceptibility and tolerance profile of Staphylococcus aureus isolated from abattoir effluent flowing into a receiving river around Bodija market in Ibadan to a range of antibiotics and heavy metals. Ten points were selected for sampling, and the samples were cultured on nutrient agar and mannitol salt agar. A total of 22 Staphylococcus aureus strains were obtained. They were subjected to increasing concentration of six heavy metals [lead (Pb), copper (Cu), zinc (Zn), chromium (Cr), cadmium (Cd), nickel (Ni)] and five antibiotics. Of the total isolates, 41% were resistant to all the six metals at 1500μg/ml concentration, while the others showed various degree of resistance. A percentage resistance of 22.7% was observed for tetracycline, 100% to ceftazidime, 9.1% to ciprofloxacin and vancomycin while 63.6% of the strains were resistant to oxacillin. All the strains but two showed resistance to all the metals tested, while multiple resistance to antibiotics was also observed. Further studies need to be carried out on the mechanisms of resistance of these strains.

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