Written Paper

Impact of sweet potato cultivars on blood glucose level in diabetic and healthy participants  [2008]

Zakir, S. (Sargodha Univ. (Pakistan). Dept. of Food Science and Technology) Sarwar, M. (University of Agriculture, Faisalabad (Pakistan). Inst. of Animal Nutritional and Feed Technology) Allen, J. (North Carolina State Univ., Raleigh (USA). Dept. of Food Sciences) Butt, M.S. (University of Agriculture, Faisalabad (Pakistan). Inst. of Food Technology) et al.

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The incidence of diabetes mellitus (DM) all over the world is alarming, since nearly 7% of the world population and 12% of the population in Pakistan is affected by it. Although allopathic medicine has made tremendous progress, its cost is soaring, side effects are numerous and the control of DM remains unabated. The symptomatic treatment (without proper diagnose of blood glucose/insulin level & HbA1c) through indiscriminate use of allopathic medicine is quite common. The objective of the present study was to show that sweet potato has an impact on blood glucose healthy and diabetic participants. White star (Pakistan) and Beauregard (US) cultivars were analyzed through bicinchoninic acid (BCA) protein assay and electophorses to determine true protein and identify protein banding pattern, respectively. In diabetic persons, the mean value of two hours postprandial blood glucose level (mg dL-1) were 296 in glucose-control (T1), which declined to 246 in white star (T2), marginally increased to 301 in glucose + Caiapo (T3), substantially decreased to 216.29 in white star-skim (T4 despite fasting glucose level was at 253, and decreased to 257 in Beauregard (T5), respectively with coefficient of variation (CV) ranged from 35% to 43%. The average value of two hours insulin varied from 5.21 to 12.85 muLU mL-1. The preliminary results indicated that sweet potato has a blood glucose lowering effect on the person with diabetes and Caiapo had compatible results in norm
al subjects. White star and its skin showed better results than Beauregard as evident from the postprandial glucose level and insulin response. These findings present a great opportunity for the North Carolina, US and Pakistan farming community/industry to consider developing new markets for sweet potato products that offer anti-diabetic health benefits.

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International Journal of Agriculture and Biology (Pakistan)

ISSN : 1560-8530