Synergistic Effect of Unripe Plantain and Garden Egg Extract on Postprandial Blood Glucose in Diabetes Mellitus Wistar Rats
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Date
2025-12
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Lead City University, Ibadan
Abstract
Diabetes mellitus is a growing global health challenge requiring safe, accessible, and effective strategies for blood glucose control. Conventional pharmacological treatments, though effective, often pose risks such as drug-induced hypoglycemia, prompting interest in functional foods with antidiabetic potential. This study evaluated the synergistic antihyperglycemic effects of unripe plantain (Musa paradisiaca) and garden egg (Solanum melongena) flours in streptozotocin (STZ) induced diabetic rats, to develop a natural, dietary based therapy comparable to metformin. The research addressed a critical gap by investigating the combined effects of these two functional
foods rather than their individual impacts, applying the nutritional synergy and glucose homeostasis theories to explain their interaction in regulating blood glucose levels. Forty-two Wistar rats were divided into six groups (n=7): normal control, negative control, metformin treated (500 mg/kg), and three treatment groups administered 25%, 50%, and 100% formulations of the bi-herbal extract. Type 2 diabetes was induced using STZ (38 mg/kg body weight), and fasting blood glucose, body weight, and biochemical parameters were measured weekly for 28 days. Data were analyzed using one-way ANOVA with significance set at p<0.05. Results showed persistent hyperglycemia in untreated diabetic rats (291.70 ± 30.93 to 583.00 ± 17.00 mg/dL). In contrast, rats treated with bi-herbal formulations exhibited significant, dose- dependent reductions in glucose levels 25 mg/kg (264.30 ± 14.11 to 73.50 ± 6.50 mg/dL), 50 mg/kg (296.70 ± 13.91 to 72.00 ± 5.00 mg/dL), and 100 mg/kg (294.30 ± 13.93 to 71.50 ± 7.50 mg/dL) comparable to metformin-treated rats (p<0.001). The treatment also improved glucose tolerance, stabilized liver enzyme activities, and enhanced body weight recovery. In conclusion, combined unripe plantain and garden egg flours exhibited potent antihyperglycemic and hepatoprotective effects. The study recommends clinical trials and bioactive compound isolation to validate and optimize their use as safe, functional dietary therapies for diabetes management.
Keywords: Unripe plantain, Garden egg, Blood glucose, Diabetes mellitus, Bi-herbal formulation.
Word count: 295
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Keywords
Unripe plantain, Garden egg, Blood glucose, Diabetes mellitus, Bi-herbal formulation.
Citation
Kate Turabian