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Biscuits are popular snacks consumed by all age groups throughout the world. However, they are generally rich in energy and high glycemic index. Regular consumption of biscuits is associated with an increased risk of obesity and type-2 diabetes mellitus. Momordica charantia L., also known as bitter melon, has a hypoglycemic effect; adding it into biscuits may counter the glycemic index of biscuits, thereby keeping the blood glucose level of biscuits consumers normal.
The aims of this study were to formulate bitter melon (BM) enriched biscuits and test their acceptability and effect on blood glucose levels (BGL).
The study consisted of 3 stages, including BM biscuits formulation and production, an acceptability test via 30 trained panelists, followed by an experimental stage using pre- and post-test-controlled randomized group design on healthy Wistar rats (Rattus norvegicus) to test the effect of BM biscuits on BGL.
The biscuits were made using 0.5% bitter melon flour and 99.5% wheat flour. The BM biscuits were graded as acceptable by 93.3% of the panelists, most of whom rated them with “rather like” for their color and taste. A significant decrease in the BGL was found in after 30 days of the BM biscuits intervention (mean±SD=-9.71±1.15 mg/dL, p=0.01) in healthy Wistar rats; conversely, a significant increase in the BGL was found in the control group.
Biscuits enriched with bitter melon flour could be used as an alternative to low glycemic snacks without increasing blood glucose level of healthy Wistar rats.