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Articles by O.O. Ilori
Total Records ( 4 ) for O.O. Ilori
  O.A. Odukoya , S.I. Inya-Agha , F.I. Segun , M.O. Sofidiya and O.O. Ilori
  Antioxidant activity of hot water extracts of 21 Green Leafy Vegetables (GLV): Amaranthus hybridus Linn. (Amaranthaceae), Amaranthus caudatus (Amaranthaceae), Beilschmedia manni (Meisn.) Benth. Et Hook.f. (Lauraceae), Celosia argentea var argentea (L.) O. Kuntze (Amarantheceae) Celosia argentea var cristata Linn. (Amarantheceae), Corchorus olitorius L. (Tiliaceae), Crassocephalum crepidioides (Benth). S.Moore (Asteraceae), Gnetum bucholzianum Welw. (Gnetaceae), Gongronema latifolium Benth. (Asclepiadaceae), Heinsia crinita (Afz.) G. Taylor (Rubiaceae), Hibiscus callyphyllus Cav. (Malvaceae), Lasianthera africana P. Beauv (Icacinaceae), Myrianthus arboreus P. Beauv. (Urticaceae), Pterocarpus mildbraedii Harms (Papilionaceae), Pterocarpus santalinoides DC. (Papilionaceae), Solanum macrocarpon L. (Solanaceae), Solanum melongena Linn. (Solanaceae), Struchium sparganophora (Linn.) O. Ktze (Asteraceae), Talinum triangulare (Jacq.) Wild. Portulacaceae, Telferia occidetalis Hook (Curcurbitaceae) and Vernonia amygdalina Del. (Asteraceae) was investigated. Potential free radical scanvenging activity of these vegetables was confirmed by spraying spots of the extracts with DPPH (yellow color on purple background). Antioxidant activity was assayed in linoleic acid model system. Total polyphenols as Tannic Acid Equivalent (TAE) and ascorbic acid were evaluated spectrophotometrically. The activity of each extract was calculated as %inhibition of lipid peroxidation. The extracts showed marked antioxidant activity in linoleic acid model systems. Antioxidant values (AA) ranged from as low as 3.67% in A. hybridus to as high as 68.41% in C. argentea var cristata. Phenol content (TAE) varied from 21.83 mg/100 g dry weight in T. triangulare to 546.97 mg/100 g dry weight in G. bucholzianum. Ascorbic acid content (ASC) was from 13.41 mg/100 g dry weight in V. amygdalina to 187.11 mg/100 g dry weight in G. latifolium. There was low correlation between AA/TAE (R2 = 0.432), AA/ASC (R2 = 0.28) and TAE/ASC (R2 = 0.35), respectively.
  O.A. Odukoya , M.O. Sofidiya , O.O. Ilori , M.O. Gbededo , J.O. Ajadotuigwe and O.O. Olaleye
  Free radicals are generated in ano-rectal diseases and stress process results in pain, inflammation, swelling, itching and tenderness. The present study investigates the benefit of astringent herbs in hemorrhoid therapy. Astringent herbs used locally in the treatment of hemorrhoids [Achyranthes aspera Linn. (Amarantheceae), Adansonia digitata Linn. (Bombacaceae), Dialium guineense Willd (Leguminosae), Harungana madagascariensis, Kigelia africana (Lam.) Benth. (Bignoniaceae), Newbouldia leavis Seem. (Bignoniaceae) and Spondias mombin Linn. (Anacardiaceae)] were subjected to assay. Astringency was measured as the amount of tannin precipitated by a standard protein Bovine Serum Albumin (BSA) using ferric chloride blue chromophore at an absorbance maximum at 510 nm. The effects of these plant extracts on Scomber japonicum Houttuyn (Scombridae) lipid peroxidation was accessed by thiobarbituric acid reactivity method measured at UV 532 nm and expressed as MDA equivalent/mg of tissue. Total phenol and flavonoid contents were determined as gallic acid and rutin equivalents, respectively. Astringency of extracts was in the order of Spondias leaves>Dialium seeds>Dialium leaves>Newboldia leaves>Kigelia fruit>Spondias fruit>Kigelia bark>Harungana bark>Newboldia bark>Harungana leaves >Adansonia leaves>Achyranthes leaves. Astringency correlated positively with total phenols (r2 = 0.7944), inhibition of lipid peroxidation (r2 = 0.6596 with raw homogenate and 0.9220 with cooked homogenate), low correlation with flavonoid (r2 = 0.059) and no correlation between total phenol and flavonoid content (r2 = -0.0387). It is proposed that these astringent herbs accomplish haemorrhoid therapy by inhibiting lipid peroxidation and plugging up minute leaks and holes in the veins and capillaries thereby promoting vein elasticity and acting as vasoconstrictors in the perianal area.
  O.A. Odukoya , S.I. Inya-Agha and O.O. Ilori
  In vitro antioxidant activity of aqueous extracts of Phyllantus amarus (Schum and Thonn.) Euphorbiaceae, Sida acuta Burman f. (Malvaceae), Sida cordifolia Linn. (Malvaceae) and Xylopia aethiopica (Dunal) A. Rich (Annonaceae) was assessed by lipid peroxidation (LPO) and reduced glutathione content (GSH). Inhibition of peroxidation and GSH oxidation in all concentrations was dose-dependent. % inhibition at 1 mg mL-1 concentration activity for lipid peroxidation was mixture of all plant extracts with S. cordifolia (86.83 ± 1.23) > mixture with S. acuta (72.92± 0.96) >P. amarus (72.03± 0.39) > S. cordifolia (56.82± 0.54) > S. acuta (42.77± 1.76) > X. eathiopica (39.48± 2.07). Inhibition of GSH oxidation was 97.47± 0.42, 83.56± 0.39, 78.33± 0.09, 61.69± 0.87, 56.48± 0.19 and 49.44± 1.13, respectively in the same order.The extracts inhibited lipid peroxidation and GSH oxidation and thus could slow down aging process and improve immune responses.
  O.J. Ilori , O.O. Ilori , R.O. Sanni and T.A. Adenegan-Alakinde
  Chromolaena odorata (a weed in the family Asteraceae) has been shown to enhance the buildup of organic matter in fallow system in tropical soil. Therefore, the aim of this study was to investigate the effects of Chromolaena odorata on the growth of Celosia argentea. The shoots of C. odorata were extracted in distilled water after soaking for 12 h. The filtrate obtained served as treatment for the seedling in the aqueous extract regime (FSE). Results showed that the shoot height, leaf area, fresh and dry weight were enhanced by the application of aqueous extract prepared from the fresh shoot of Chromolaena odorata. The root length of the test plant in the aqueous extract regime was longer at the initial period of the experiment but was later lower than those of the control. Therefore, Chromolaena odorata might not be playing an inhibitory role on the growth and development of Celosia argentea. It was suggested that the weed should be soil incorporated to serve as green manure.
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