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Protective Effects of Anthocyanin Extract from Purple Sweet Potato (Ipomoea batatas L.) on Blood MDA Levels, Liver and Renal Activity, and Blood Pressure of Hyperglycemic Rats

Preventive Nutrition and Food Science 2020년 25권 4호 p.375 ~ 379
Herawati Ervika Rahayu Novita, Santosa Umar, Sentana Suharwadji, Ariani Dini,
소속 상세정보
 ( Herawati Ervika Rahayu Novita ) - Indonesian Institute of Sciences Research Division for Natural Product Technology
 ( Santosa Umar ) - Gadjah Mada University Faculty of Agricultural Technology
 ( Sentana Suharwadji ) - Indonesian Institute of Sciences Research Division for Natural Product Technology
 ( Ariani Dini ) - Indonesian Institute of Sciences Research Division for Natural Product Technology

Abstract


There has been a dynamic progression in the study of purple sweet potatoes, particularly in regard to their antioxidant compounds, such as anthocyanins. Antioxidants can reduce oxidative stress due to hyperglycemia, therefore research into the protective effects of hyperglycemia is essential. This study was conducted to investigate the protective effects of anthocyanin extracts from purple sweet potatoes on blood malondialdehyde (MDA) levels, liver and renal activity, and blood pressure in hyperglycemic rats. Anthocyanin from purple sweet potato (APSP) was extracted with ethanol-citric acid 3% solvent. Twenty-four rats were split into four experimental groups: (i) healthy rats; (ii) hyperglycemic rats without anthocyanin treatment; (iii) hyperglycemic rats treated with APSP extract at a dose of 50 mg/kg; and (iv) hyperglycemic rats treated with APSP extract at a dose of 100 mg/kg. Rats received treatment for 35 days. The results showed that consumption of APSP significantly reduced levels of MDA in the blood, and liver and renal systems. APSP could reduce the urea and creatinine levels, which are indicative of improved renal function. In addition, APSP could decrease serum glutamate oxalacetate transaminase and serum glutamate pyruvate transaminase levels, indicative of protective activity of the extract on liver, and decrease systolic blood pressure. Accordingly, it was concluded that APSP could be developed as a functional food for treatment of diabetes.

키워드

anthocyanin extract; antioxidant activity; hyperglycemic; MDA; purple sweet potato

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