105 research outputs found
EXTRACTION AND CHARACTERIZATION OF RICE BRAN OIL (RBO) FOR POTENTIAL APPLICATION AS BIODIESEL
No full textAbstract: Rice bran oil (RBO) is a potential feedstock for biodiesel and biolubricant production among other alternative sources. The rice bran’s fat extraction was carried out using maceration with chloroform, solvent recovery as a means of purification was carried out using rotary evaporator. Physicochemical analysis such as percent extraction and Gas Chromatography-Mass Spectrometry (GC-MS), iodine value, peroxide value and saponification values were carried out to ascertain its potential application as Biodiesel. From the GC-MS analysis, over 30 compounds including fatty acids and other phytochemicals were discovered with Oleic acid having the greater percentage of 34.5% having the base peak at m/z of 282.
Keywords: Rice bran oil (RBO), biodiesel, biolubricant production.
Title: EXTRACTION AND CHARACTERIZATION OF RICE BRAN OIL (RBO) FOR POTENTIAL APPLICATION AS BIODIESEL
Author: Shehu Isah, Abdulkarim Shuaib
International Journal of Novel Research in Physics Chemistry & Mathematics
ISSN 2394-9651
Vol. 10, Issue 3, September 2023 - December 2023
Page No: 36-62
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 21-September-2023
DOI: https://doi.org/10.5281/zenodo.8366590
Paper Download Link (Source)
https://www.noveltyjournals.com/upload/paper/EXTRACTION%20AND%20CHARACTERIZATION-21092023-6.pdfInternational Journal of Novel Research in Physics Chemistry & Mathematics, ISSN 2394-9651, Novelty Journals, Website: www.noveltyjournals.co
Mediating influence of moral identity on psychological contract fulfillment, self-esteem, machiavellianism and counterproductive work behaviours
No full textThe purpose of this study is to examine the mediating influence of moral identity on psychological contract fulfillment, self-esteem, Machiavellianism and counterproductive work behaviors (CWBs). Data was collected from 403 lower management employees working at Nigerian National Petroleum Corporation (NNPC) in Nigeria. This research is a cross-sectional quantitative design that used proportionate stratified random sampling. Questionnaires were distributed and collected through personally administered questionnaire. Partial least squares Structural Equation Modeling (PLS_SEM), was used to test the hypotheses. Based from Social Cognitive Theory and supported by Social Exchange Theory and Self-Consistency Theory, the results provide support for most of the hypothesized relationships in the study. Specifically, the study has fifteen direct relationships and nine mediating hypotheses (indirect relationships). For the direct relationships, fourteen are supported while one is not supported. On the other hand, the results of mediating influence indicate that six were supported while three hypotheses are insignificant. The significant positive effects from psychological contract fulfillment, self-esteem, Machiavellianism and moral identity on counterproductive work behaviors portrays that the variables are relevant in minimizing counterproductive work behaviors (CWBs) in Nigeria. The results of this study provide valuable insights to managers, policy-makers, and researchers to conduct honesty and personality test selection process when making employee hiring decisions. This is important to minimize the tendencies of employees to engage in counterproductive acts. Based on the research findings, limitations and suggestions for future research were also highlighte
Entrepreneurship education and entrepreneurial career option among polytechnic students in Northwestern Nigeria: the mediating effect of creativity
No full textThe study's primary objective is to examine the mediating effect of creativity on the relationship between components of entrepreneurship education (EE) and entrepreneurial career option (ECO) among polytechnic students in northwestern Nigeria. Data were collected from polytechnics through cross-sectional study design. The study adopted multistage stratified sampling to select six polytechnics and used proportionate random sampling to select 505 respondents, and questionnaires were self-administered. 348 usable responses were gathered to assess 11 direct and 5 indirect hypotheses and Partial Least Squares Structural Equation Modelling (PLSSEM) was used in the hypotheses testing. This study found that know-what (KWT), know-how (KHW), know-who (KWO), know-why (KWY), know-when (KWN), and creativity (CRT) are essential EE components of EE objectives that influence students to engage in ECO in northwestern Nigeria. The findings revealed that KWT, KHW, KWY, and KWN depends on the CRT disposition of the students. It is expected KWO and KWN would increase students' ECO, but the findings of this study ran contrary to this expectation, as the relationship between KWO, KWN and ECO was not significant. Interestingly, the findings further showed that creativity significantly mediate the relationship between KWT, KWO, KWY, KWN and ECO, but not the relationship between KHW and ECO. Higher educational institutions (HEIs) should emphasise KWT, KWO, KWY, and KWN, but it is imperative to note that overemphasis on KHW may result in lower creativity. The results of this study provides significant insights to EE stakeholders and researchers to recognise that the EE, CRT, and ECO relationships need to be examined further. The current study contributes mainly to the current literature on how CRT mediates the relationship between all of the components of EE and ECO, especially in the Nigerian context where such studies are sparse. The study recommends strategies and practical road map for effective delivery of EE courses in line with global best practice. Lastly, limitations of the current study and avenues for future research were discussed
Production of cooking oil from corn germ using supercritical co2 as solvent
No full textThis work was aimed at the production of edible oil from three different corn samples. Sohxlet extraction and supercritical fluid extraction methods were used to extract the oil and study the effect of pretreatment of the corn germ, pressure, temperature and flow rate on the process. Out of the three samples used UK sample 1 had the lowest oil content of9.00 %, UK sample 2 has the highest oil content of 16.37% and Nigerian (NGN) sample had oil content of 12.10 %. Apparent solublity of corn oil in supercritical C02 measurement shows that the crossover pressure is 240 bars. The oil recovered in the slow extraction period was negligible as compared to that recovered in the fast extraction period. It was therefore not economical to continue the extraction in the slow extraction period. Based on the result it is better to carry out the test at a flow rate of 4 1/min. For both UK sample 2 and the NGN samples, extraction at 300 bar had higher oil yield and faster recovery. The results of this study on supercritical extraction revealed that that UK sample 2 has high economic potentials followed by NGN sample
SOLID STATE FERMENTATION OF RICE BRAN: NUTRITIONAL VALUES AND FUNCTIONAL PROPERTIES
No full textAbstract: Solid state fermentation of rice bran improves nutritional values and functional properties. The edible fungus, Pleurotus Sapidus, was employed for the solid state fermentation. During fermentation, the sample was withdrawn after ten days and further analyzed. An investigation process was carried out on the solid-state fermented rice bran (RB) in comparison with the unfermented (normal) rice bran. The few analyses that were investigated in comparison with the unfermented rice bran were the density tests (bulk, tapped and compact), water and oil absorption capacities, swelling power, moisture estimate, pH, reducible sugar, and water solubility. From the results, it was found that both the fermented and unfermented rice bran have a pH of 5 and 6, respectively, with absorption capacities of both oil (5% for the fermented sample and 20% for the unfermented sample) and water (10% for the fermented sample and 25% for the unfermented sample), and both samples possess swelling power. This study demonstrated a comparison in the nutritional quality of RB after fermentation with Pleurotus sapidus in an attempt to find or improve the functional and nutritional value of rice bran via solid state fermentation. The study therefore proves that the functional and nutritional value of the unfermented sample, which has a higher phenol concentration from spectrophotometry and high ascorbic acid, was better than the fermented sample with lower phenol concentration and less ascorbic acid.
Keywords: Solid state fermentation, rice bran, high ascorbic acid.
Title: SOLID STATE FERMENTATION OF RICE BRAN: NUTRITIONAL VALUES AND FUNCTIONAL PROPERTIES
Author: Shehu Isah, Kennedy Unakalamba
International Journal of Novel Research in Physics Chemistry & Mathematics
ISSN 2394-9651
Vol. 10, Issue 3, September 2023 - December 2023
Page No: 63-86
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 21-September-2023
DOI: https://doi.org/10.5281/zenodo.8366646
Paper Download Link (Source)
https://www.noveltyjournals.com/upload/paper/SOLID%20STATE%20FERMENTATION%20OF%20RICE%20BRAN-21092023-7.pdfInternational Journal of Novel Research in Physics Chemistry & Mathematics, ISSN 2394-9651, Novelty Journals, Website: www.noveltyjournals.co
A review of the impact of library and information centers on nation building: Evidence from Nigeria
No full textWhile different sectors have been incorporated in different activity of the nation building, libraries and information centers have been given little or no chance to participate in Nigeria. This paper highlighted the impact of library and information centers on complex activities of nation building, further explain the kind of services rendered by different types of libraries and information centers in the country. The paper confirms that Library and information centers plays a very vital role in national building in the country, and therefore, recommend the government to assist these centers to actively participate in the activity of nation building
The influence of entrepreneurial competencies on entrepreneurial career option among polytechnic students in Nigeria
No full textEntrepreneurship is gradually becoming a parameter of measuring socio-economic developments among nations. Entrepreneurship is helping the growth of economies by creating additional jobs, wealth, and reducing the incidence of abject poverty. Developed countries ascribe their achievements to technological development, scientific break-through, improved communication and information technology, and competitive advantage gained through their entrepreneurial competencies and adventures. The objective of this paper is to examine the significance of entrepreneurial skills and their influence on entrepreneurial career option. Entrepreneurial competencies seek to create awareness among students about entrepreneurship as the appropriate career option to engage after graduation, as well as impart the needed social skills and knowledge of the use of insights and intuitions to identify and exploit opportunities to start a business. A quantitative approach was used involving a total of 505 questionnaires distributed to polytechnic students in Nigeria. A total of 425 questionnaires were completed and returned with a response rate of 84.2 percent. Data were analysed using SmartPLS 3; results indicate a significant positive influence of know-who and know-when competencies on entrepreneurial career option. The study was consistent with earlier studies on the relationship between entrepreneurial competencies and entrepreneurial career option among students. The findings of the study will be of immense benefit to the government, education regulatory agencies, higher education institutions, and the general public. Further, the study will serve as a framework for future reference and assist in formulating future policies on entrepreneurship in Nigeria. Keywords: Entrepreneurial career option, entrepreneurial competencies; polytechnic
Ab initio modeling and experimental investigation of Fe2 P by DFT and spin spectroscopies
No full textFe2P alloys have been identified as promising candidates for magnetic refrigeration at room-temperature and for custom magnetostatic applications. The intent of this study is to accurately characterize the magnetic ground state of the parent compound, Fe2P, with two spectroscopic techniques, μSR and NMR, in order to provide solid bases for further experimental analysis of Fe2P-type transition metal based alloys. We perform zero applied field measurements using both techniques below the ferromagnetic transition TC=220 K. The experimental results are reproduced and interpreted using first principles simulations, validating this approach for quantitative estimates in alloys of interest for technological applications.</p
Anti-malarial and Anti-bacterial properties of some selected species of Asteraceae family
No full textAbstract: Bioactive natural plants, including the Asteraceae family have several therapeutic effects and antimicrobial properties. They are used in different cultures across the world as alternative medicine for treatments of several ailments including prevalent malaria infection, wound healing, diabetes, anti-ulcerative, anti-bacterial, treatment of liver disease, accelerates blood clotting, relieves muscle cramps during menstruation and treatment of common colds. In this review, some selected species of the Asteraceae families such as Vernonia amygdolina, artemisia annua and ageratum conyzoides amongst others were evaluated for their anti-malarial and antimicrobial properties. Major and minor bioactive chemical ingredients in each species were discussed, especially their chemical structures and inherent functional groups.
This approach is intended to guide future research on drug development and drug discovery. This is especially important as we are set to finding lasting solution to multidrug resistance microbial infection and other life-threatening ailments, such as malaria, and cancer that confront our daily lives. Asteraceae family in general can be used as safe preservatives and food additives to improve the health role of food. This is attributed to their good flavor, antioxidant, and antimicrobial effect.
Keywords: Bioactive plants; Asteraceae; therapeutic effects; antimicrobial effect; anti-malarial.
Title: Anti-malarial and Anti-bacterial properties of some selected species of Asteraceae family
Author: Shehu Isah, Theresa Uchechukwu, James Akande
International Journal of Novel Research in Physics Chemistry & Mathematics
ISSN 2394-9651
Vol. 10, Issue 3, September 2023 - December 2023
Page No: 20-35
Novelty Journals
Website: www.noveltyjournals.com
Published Date: 18-September-2023
DOI: https://doi.org/10.5281/zenodo.8355499
Paper download Link (Source)
https://www.noveltyjournals.com/upload/paper/Anti-malarial%20and%20Anti-bacterial-18092023-5.pdfInternational Journal of Novel Research in Physics Chemistry & Mathematics, ISSN 2394-9651, Novelty Journals, Website: www.noveltyjournals.co
Review of Democracy Values and Anti-Corruption Campaign in Nigeria: An Issue for Electoral Integrity and National Development.
No full textElections have offered a way through which the people freely decide who their leaders should be. Unfortunately, in Nigeria, what could be called electoral corruption was observed recently during the election process. This has stigmatized the image of the government, weakened its credibility and reduced the effectiveness of the development programmes and polices which so far have been formulated. The objective of the study is to review democracy values and effort of anti- corruption campaign to achieve electoral integrity for national development. The study adopted a contents analysis, secondary data were gathered from the work of scholars, empirical studies and theoretical framework was made to arrive at a complete understanding of the trends in democratic process and anti-corruption campaign in Nigeria. The study concluded that if societies were not corrupt, if the elite, officials and bureaucrats maintained probity, social development would be faster. The study recommended that for a complete overhauled electoral system and further deepened the democratic ethics that will respond to Nigeria democratic evolution as a country and whose results will adequately mirror the preference of the voting public those who are involved in electoral corruption should be exposed and punish, this will set the nation on the path of good governance which broadly equates genuine popular democracy
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