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- ItemComparative Analysis of the Effects of Coco Fibre on the Growth Performance of Telfaira Occidentalis Hook. f. (Ugwu) and Capsicum annuum L. (Pepper): An Approach to Sustainable Waste Management(Federal University of Birnin Kebbi (Savanna Journal of Basic Applied Sciences), 2024-12-31) Akanbi-Gada, M.A., Saliu A.O ., Amubieya O. F., Iyanda Y.A., Oke, C.O., Oluwatobi A. S., Opeyemi P. T. and Sulaimon, R.M.An investigation into the potentials of coco fibre as a growth enhancer/medium was carried out on a potted experiment with ugwu (Telfairia occidentalis) also known by many as fluted pumpkin and pepper (Capsicum annuum) as test plants. Growth indicators such as plant height and the number of leaves per plant were used as the basis for the comparison of coco fibre with the conventional soil (topsoil). The study was conducted at Kwara State University's Plant and Environmental Biology Screen house in Malete, Kwara State Nigeria. A sustainable substitute such as coco fibre was made from the husks of coconuts following standard methods. Data collected from both coco fibre cultivated plants as well as the topsoil were subjected to Analysis of Variance (ANOVA) to check the main and interactive effects of treatments using R Version 4.3.0. Post-hoc comparison of means was performed using the Eemeans package at a 0.05 level of Significance. Results showed that coco fibre-treated ugwu plants had higher plant height and number of leaves per plant across all the weeks at 0.05 level of Significance for the experiment while pepper grew more luxuriant in topsoil cultivation than coco fibre. To optimize nutrient delivery and evaluate long-term effects on plant health and yield, more research is recommended
- ItemEvaluation of Seed Morphometrics, Germination and Oil Content of Collected Castor Landraces(Federal University of Kashere-Nigeria (Jewel Journal of Scientific Research), 2025-05-30) Oke, C. O., Salihu, B. Z. and Abdulsalam, A. B.Castor (Ricinus communis L.) is a valuable non-edible oilseed crop with industrial and medical applications, known for its high seed oil content (35–65%) and ricinoleic acid (85–90%). This study evaluated seed morphometrics, germination, and oil content of 15 castor landraces collected from six sites in Ilorin, Kwara State, Nigeria. Morphological traits such as stem color, leaf petiole texture, seed color, and size were analyzed, revealing significant variability. Light green stems (73.3%), dark chocolate seeds (66.7%) were predominant, while white, and light brown seeds were rare. Seed size varied, with small seeds (60%) being most common. Germination parameters showed high variability: germination percentage ranged from 32.67% to 78.00%, with a mean of 55.82%, while mean germination time varied from 3.78 to 8.75 days. Seed oil content ranged from 23.89% to 41.77%, with Samples 15 (41.77%) and 14 (39.72%) exhibiting the highest yields. Morphometric analysis using ImageJ software revealed significant differences in seed traits such as area, perimeter, and circularity, indicating diverse seed shapes and sizes. Correlation analysis showed weak relationships between seed morphometrics and oil content, suggesting that seed size and shape are poor predictors of oil yield. The findings highlight the genetic diversity among castor landraces in Ilorin, with implications for breeding programs aimed at improving oil yield and germination performance. The study underscores the need for integrated approaches combining morphological, biochemical, and genomic data to optimize castor cultivation for industrial applications.
- ItemTotal Phenolic Contents and Antioxidant Activity of Nine Medicinal Plants used in Nigerian Traditional Medicine(Tropical Journal of Natural Product Research, 2018-09-15) Sidiq Latifat O. , Segun Peter A., Ogbole Omonike O.In Nigerian ethnobotany, several medicinal plants have been used for decades for the management of various ailments. Although several ethnobotanical studies have been conducted to document the most frequently used medicinal plants in the treatment of oxidative stress associated diseases, there is need to validate the therapeutic potentials of these plants. Therefore, this study was conducted to determine the radical scavenging ability as well as the total phenolic contents of nine medicinal plants used in Nigerian ethnobotany for the treatment of inflammation, diabetes and related medical conditions. The methanol extracts of nine medicinal plants selected from Southwestern Nigeria ethnomedicinal plants were evaluated for their antioxidant activity using the DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging assay and their total phenolic content was determined using Folin-Ciocalteu reagent. All the extracts tested showed significant DPPH scavenging activity. Amongst the nine plants, Bridelia ferruginea, Piper guineense and Nauclea diderrichii had the highest antioxidant activity with IC50 of 11.46, 15.02 and 18.12 μg/mL, respectively, compared with the standard drugs; ascorbic acid (IC50 = 1.40 μg/mL) and gallic acid (IC50 = 0.79 μg/mL). The results of total phenolic content showed N. diderrichii with the highest phenolic content of 347.77 mg gallic acid equivalent per gramme of extract (GAE/g extract), while Holarrhena floribunda G.Don. (Apocynaceae) had the least phenolic content of 12.58 mg GAE/g extract. The result obtained from this study revealed that some of the plant extract exhibited free radical scavenging ability and could serve as candidates in the search for natural antioxidants.
- ItemMedicinal Plants used in Four Local Government Areas of South-Western Nigeria for the Management of Diabetes and its Comorbidities: An Ethnopharmacological Survey(Journal of Phytomedicine and Therapeutics, 2022-06-20) Sidiq Latifat O., Segun Peter A. and Ogbole Omonike O.Introduction: Diabetes mellitus (DM) continues to pose a major global health threat with serious economic burden in sub-Saharan Africa, especially Nigeria. This condition is often worsened as most diabetic patients have other accompanying comorbidities such as hypertension, stroke, heart disease and obesity, further putting a strain on their wellbeing. In spite of the several orthodox medicines for the treatment of diabetes and its comorbidities, complication arising from the use of such agents have limited therapeutic success. It is therefore imperative to search for safer alternative and affordable treatment options from plants. This study aimed at accessing and documenting the medicinal plants used in four local government areas of South-Western Nigeria for the management of diabetes and its comorbidities. Semi-structured questionnaires were used to obtain information from traditional medical practitioners, village elders and herb sellers. The data obtained were analyzed and discussed in relation to previously published literature. Fifty-three respondents mostly males (77.4%) provided information on medicinal plants useful for the management of diabetes and its comorbidities. A total of 77 medicinal plants used concomitantly belonging to 44 plant families were mentioned by the respondents. 53 medicinal plants are being used for managing diabetes, 35 for hypertension, 28 for stroke, 17 for heart diseases and 25 for obesity. The frequently used plant species were Vernonia amygdalina Delile with use-mentionindex (UMi) of 0.208, Citrus aurantifolia (Christm.) Swingle (UMi 0.170), Viscum album L. (UMi 0.151), Carica papaya L. (UMi 0.151) and Allium sativum L. (UMi 0.132). Citrus aurantifolia was the only plant mentioned for the management of the five ailments. Most diabetic patients often have one or more accompanying comorbidities. A safe and efficacious single herbal preparation that can manage both diabetes and its comorbidities may provide scientific breakthrough and relief from the side effects associated with the use of different synthetic drugs that is often experienced by sufferers of DM with accompanying comorbidities.
- ItemAlpha-amylase Inhibition and Brine Shrimp Lethality Activities of Nine Medicinal Plant Extracts from South-West Nigerian Ethnomedicine(Journal of Herbs, Spices & Medicinal Plants, 2016-08-12) Ogbole Omonike Oluyemisi, Aliu Latifat Olabimpe, Abiodun Oyindamola Olajumoke and Ajaiyeoba Edith OriabureAcanthospermum hispidum, Alchornea laxiflora, Calyptrochilum christyanum, Heliotropicum indicum, Holarrhena floribunda, Ipomoea asarifolia, Nauclea diderrichii, Piper guineense, and Tetracera scandens were extracted into methanol and screened for the availability of alpha-amylase inhibitors. Plant extracts’ toxicity was determined by brine shrimp lethality assay (BSLA). The most active plant, Nauclea diderichii, was fractionated into four solvent systems (n-hexane fractions, ethyl acetate, dichloromethane, and n-butanol) and tested. All the extracts showed varying degrees of alpha-amylase inhibitory activity. N. diderrichii with IC50 = 248.30 ± 0.27 μg.mL–1 had the highest inhibitory activity, while its butanol fraction with IC50 = 137.8 μg.mL– 1 had activity comparable to the standard α-amylase inhibitor acarbose (IC50 = 177.50 ± 0.42 μg.mL–1). LC50 values for BSLA ranged from 11.35 to 1,127.50 μg.mL–1, with T. scandens being the most toxic with 11.35 μg.mL–1 and N. diderrichii the least toxic with 1,127.50 μg.mL–1.