Cymbopogon citratus commonly called lemon grass is claimed to possess diverse medicinal value among different cultures. The present study determined the phytochemicals and evaluated the antioxidant potential of Cymbopogon citratus leaves. The phytochemical and proximate analysis of the powdered leaves were carried out using standard methods. The antioxidant activity of the crude methanol extract and its fractions (n-hexane, ethyl acetate and chloroform) was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and ferric reducing antioxidant power (FRAP) assays. The total phenolic and flavonoid contents were assessed using the Folin-Ciocalteu and aluminium chloride colorimetric methods, respectively. The phytochemical analysis revealed the presence of carbohydrates, reducing sugars, saponins, tannins, flavonoids and other phenolics compounds. The moisture, ash, fat, crude fibre, crude protein, water soluble ash and acid insoluble ash contents were 13.00%, 7.63%, 2.44%, 29.40%, 4.45%, 6.13% and 4.00%, respectively. Among the extract and fractions tested, the ethyl acetate fraction exhibited the highest antioxidant activity. The ethyl acetate fraction also had the highest phenolic and flavonoid contents. There was a strong relationship between the polyphenolic content and antioxidant activity of the extract and fractions with a coefficient of determination (r²) of 0.889 and 0.920 for total phenols and total flavonoids, respectively. The present study showed that the leaves of Cymbopogon citratus especially the ethyl acetate fraction possess good antioxidant activity and could serve as potentially source of natural antioxidants.
University education is at the centre of human resource development. The nation's professional and highly skilled personnel are trained and developed in the universities. The emergence of the private sector universities in Nigeria is well remarkable. No doubt, there is need for more private sector participation in establishing universities as a result of the large population of deserving students for university admission, critically important is to ensure a universal standard is upheld. The study methodology is literature exploratory on the emergence, and future sustainability of the private universities for higher education in Nigeria focusing on assessment and standard regulations. The study has largely drawn from articles on the subject and reports of regulatory education authorities. Quality is therefore, significantly a function of cost-effectiveness, current technology, accountability and transparency in expenditure and strict adherence to requirements set out in the academic briefs and master Plans. Strategic planning and uncompromising adherence to estimate as contained in the Annual Budget. Consequently, running a private university is a more serious business than profit making.
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