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KMID : 1134820190480020170
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Journal of the Korean Society of Food Science and Nutrition
2019 Volume.48 No. 2 p.170 ~ p.178
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Effects of Sulgidduk Added with Pine Needle Juice on the Body Fat and Antioxidant Metabolism in High-Fat Induced Obese Rats
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Park Jae-Hee
Kim So-Yun
Lee Yun-Jeong
Park Eun-Ju
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Abstract
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This study investigated the effects of Sulgidduk, a Korean traditional rice cake containing pine needle juice (PNJ) on the body fat and antioxidant metabolism in high-fat diet (HFD) induced obese rats. Five-week-old Sprague-Dawley male rats were fed either a normal diet (ND) or HFD for 4 weeks. The rats in the HFD group were fed either a HFD, Sulgidduk-based diet (SD, 10.9% rice flour, 2.33% sugar, and 0.16% salt) or a Sulgidduk plus PNJ diet (PSD, 10.66% rice flour, 2.28% sugar, 0.16% salt, and 0.78% PNJ) for another 9 weeks. The food efficiency ratio of the HFD group was the highest, while it decreased according to the PSD intake. The body weight was significantly lower in the PSD group than in the HFD group. The subcutaneous and epididymal adipose tissue weight was higher in the HFD group than the ND group and PSD showed a lower trend compared to the HFD group. On the other hand, the adipocyte surface area of these adipose tissue was reduced significantly in the PSD group compared to the HFD group. Adiponectin was significantly lower in the HFD group than in the ND group and significantly higher in the PSD group than in the HFD group. The leptin level was significantly higher in the rats in the HFD group than in those in the ND group and showed lower tendency in the rats in the PSD group than in those in the HFD group. The catalase and glutathione-peroxidase (GSH-Px) levels were increased significantly by the HFD group compared to the ND group. The GSH-Px level was similar in the rats in the PSD and ND groups. DNA damage induced by the HFD was inhibited by the ingestion of PSD. Therefore, pine needle juice is effective in preventing obesity induced by a high-fat diet and positively affecting the balance between plasma adipocytokine and systemic antioxidant defenses, thereby inhibiting DNA damage.
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KEYWORD
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dietary induced obesity, pine needle, Sulgidduk, body fat, antioxidant metabolism
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