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Anti-diabetic and hypolipidemic effects of purple-fleshed potato in streptozotocin-induced diabetic rats

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Abstract

The purpose of this study was to investigate the effects of purple-fleshed potatoes on blood glucose level (BGL), insulin and lipid levels in streptozotocin (STZ) induced diabetic rats for 7 weeks. Test groups were divided into non-diabetic control and diabetic groups. The diabetic groups were further divided into three groups: diabetes mellitus (DM) control, 10% purple-fleshed potato DM (10PP-DM), and 20% purple-fleshed potato DM (20PPDM) groups. Three weeks after initiating the experimental diet, BGL was significantly lower in the 10PP-DM and 20PP-DM groups compared to the DM control group. As for serum insulin levels, the 20PP-DM group was significantly higher than in the DM control group. While serum cholesterol level was significantly lower in the 20PP-DM group, serum triglyceride level was significantly lower in the 10PP-DM group than in the DM control group. We concluded that a 20PP powder intake improves both diabetes and lipid control in diabetic rats by significantly improving serum insulin level and lowering BGL and serum cholesterol level.

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Authors and Affiliations

  1. Department of Food Science and Nutrition, Hoseo University, Asan, Chungnam, 336-795, Korea

    Mi-Kyeong Choi

  2. Department of Crop Life Safety, National Academy of Agricultural Science, Rural Development Administration, Suwon, Gyeonggi, 441-707, Korea

    Soo-Jin Park

  3. Department of Horticultural Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, Gyeonggi, 446-701, Korea

    Seok Hyun Eom

  4. Division of Food Science, Kongju National University, Yesan, Chungnam, 340-702, Korea

    Myung-Hwa Kang

Authors
  1. Mi-Kyeong Choi
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  2. Soo-Jin Park
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  4. Myung-Hwa Kang
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Correspondence to Mi-Kyeong Choi.

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Choi, MK., Park, SJ., Eom, S.H. et al. Anti-diabetic and hypolipidemic effects of purple-fleshed potato in streptozotocin-induced diabetic rats. Food Sci Biotechnol 22, 1–6 (2013). https://doi.org/10.1007/s10068-013-0231-5

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  • DOI: https://doi.org/10.1007/s10068-013-0231-5

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