银杏黄酮魔芋精粉对大鼠抗氧化及减肥作用的影响

目的:为改善和提高魔芋食品保健功效,将微量银杏黄酮配伍加入魔芋精粉(复配物)中,研究魔芋及其复配物对大鼠肌体抗氧化、降血脂和减肥作用的影响。方法:将Wistar大鼠随机分成4组,设置对照,分别饲喂不同组分的饲料,检测、分析与比较魔芋及其复配物对血液和肝脏的抗氧化能力、血脂水平和体重的影响。结果:与魔芋精粉组相比,复配物组明显降低了大鼠血清和肝脏丙二醛含量和提高了超氧化物歧化酶的活性,增强了血液中谷胱甘肽过氧化物酶活性;使血液的高密度脂蛋白胆固醇浓度上升与总胆固醇、低密度脂蛋白胆固醇浓度下降,甘油三酯水平显著降低;而魔芋与其复配物比,减肥作用差异不显著。结论:复配物能显著提高魔芋食品的抗氧化能力,降低血脂水平,改善和调节脂质代谢,而对魔芋的减肥作用无明显影响。

EFFECTS OF AMORPHOPHALLUS KONJAC REFINED POWDER AND GINKGO BILOBA FLAVONIDS ON ANTIOXIDATION AND ANTIOBESITY IN RATS

Objective: To study the effects of Amorphophallus konjac refined powder combined with minimal flavonids on antioxidation , serum lipids and body weight in rats .Method: Wistar rats were divided into four groups fed with different diets, and then antioxidative ability of blood and liver, levels of serum lipids and body weight were detected and analysed in rats. Results: Konjac refined powder combined with Ginkgo biloba flavonids could decrease MDA content and increase activities of SOD and GSH-Px significantly, and also reduce serum TC, LDL-C, TG levels, improve HDL-C level in rats. As to antiobesity, no notable difference was found .Conclusion: Combined with flavonids, the antioxidation of Konjac food is improved significantly, and serum lipids level is decreased, but antiobesity effect is in-significant.