OYEDEJI, ABDULRASAQ and Odeyemi, B. A and Koleosho, A.O. (2019) ANTIMICROBIAL ACTIVITY, SPECTROSCOPIC AND THERMAL CHARACTERISATION OF OIL FROMAFRICAN OIL BEAN (PENTACLETHRA MACROPHYLLA) SEED. Journal of Pure and Applied Sciences, 1 (1). pp. 182-187. ISSN 2714-2531
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Abstract
The application of vegetable oils is presently in the spotlight of the chemical industry, because of their widespread availability, low price, inherent biodegradability, and excellent environmental qualifications that include low ecotoxicity and toxicity toward humans. This paper reports the antimicrobial, spectroscopic and thermal properties of the seed oil of Pentaclethra macrophylla. The oil inhibited Aspergillus flavus but had no effects on A. niger, Candida albican, Rhizopus oligosporus and clinical isolates that included Staphylococcus aureus, Streptococcusmutans, Salmonella typhimurium and Escherichia coli. The differential scanning calorimetry (DSC) curve of the oil is characterized with melting and melting enthalpy at 35.52oC, and -7.62 Jmol-1, respectively with crystallization at 33.9 oCand an enthalpy of -3.25 Jmol-1, with no further troughs or crests as signs of the oil homogeneity. The IR peaks obtained showed significant functional groups associated with unsaturation in vegetable oils, particularly those rich in linoleic acid (3008-3010 cm-1), and the UV profile of the oil showed high absorption at 190-320 nm important for oils that shield against dangerous UV-A and B radiations. Oil of P. macrophylla if exploited could be useful industrially for the production of cosmetics and creams thereby relieving the cost of popular seed oils.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Mr Taiwo Egbeyemi |
| Date Deposited: | 03 Jun 2020 19:59 |
| Last Modified: | 03 Jun 2020 19:59 |
| URI: | http://eprints.federalpolyilaro.edu.ng/id/eprint/352 |
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