CAJ | 학술논문

[目的]观察紫山药（Dioscorea alata L.）对大鼠营养生理功能的影响。[方法]生长期SD大鼠40只随机分为4组,每组10只,饲喂添加了10%山药熟粉的人工半合成饲料,以酪蛋白组作为对照组,3个试验组分别为紫山药组、铁棍山药组和普通怀山药组。各组饲料的能量、蛋白质、脂肪含量均保持一致。采用对喂法喂养60d,观察有关营养生理指标的变化。[结果]紫山药组大鼠体重、食物转化率及脏器指数均与对照组无显著差异。平均血红蛋白显著低于对照组,但血红蛋白含量与对照组无差异;嗜酸性粒细胞低于对照组。紫山药组大鼠低密度脂蛋白（LDL）、总胆固醇（TC）和致动脉硬化指数（AI）低于其他3个组,而抗动脉硬化指数（AAI）最高,但无显著差异。甘油三酯（TG）低于对照组。抗氧化指标中,紫山药组大鼠血清中过氧化氢酶（CAT）、超氧化物歧化酶（SOD）活性都高于对照组,丙二醛（MDA）含量低于对照组。肝组织中,紫山药组大鼠总抗氧化能力、CAT、谷胱甘肽过氧化物酶（GSH-Px）、SOD活性都高于对照组,而MDA含量低于对照组。[结论]紫山药具有降低大鼠血糖、胆固醇、低密度脂蛋白、甘油三酯、MDA含量,提高GSH-Px、SOD、CAT活性的趋势,具有一定的抗氧化作用。
[목적]관찰자산약（Dioscorea alata L.）대대서영양생리공능적영향。[방법]생장기SD대서40지수궤분위4조,매조10지,사위첨가료10%산약숙분적인공반합성사료,이락단백조작위대조조,3개시험조분별위자산약조、철곤산약조화보통부산약조。각조사료적능량、단백질、지방함량균보지일치。채용대위법위양60d,관찰유관영양생리지표적변화。[결과]자산약조대서체중、식물전화솔급장기지수균여대조조무현저차이。평균혈홍단백현저저우대조조,단혈홍단백함량여대조조무차이;기산성립세포저우대조조。자산약조대서저밀도지단백（LDL）、총담고순（TC）화치동맥경화지수（AI）저우기타3개조,이항동맥경화지수（AAI）최고,단무현저차이。감유삼지（TG）저우대조조。항양화지표중,자산약조대서혈청중과양화경매（CAT）、초양화물기화매（SOD）활성도고우대조조,병이철（MDA）함량저우대조조。간조직중,자산약조대서총항양화능력、CAT、곡광감태과양화물매（GSH-Px）、SOD활성도고우대조조,이MDA함량저우대조조。[결론]자산약구유강저대서혈당、담고순、저밀도지단백、감유삼지、MDA함량,제고GSH-Px、SOD、CAT활성적추세,구유일정적항양화작용。
[Objective] This study was to explore the effect of purple yam on the nutritional and physiological functions of rats.[Method] Forty SD rats were randomly divided into four groups with ten rats in each group which were reared with artificial semisynthetic feed added with 10% steamed yam powder.The four groups,the casein(CK) group which was used as the control,the purple yam(PY) group,the Tiegun yam(TY) group and common Huai yam(HY) group,were supplied with feed of equal content of energy,protein and fat.The rats were pair-fed for 56 days to observe changes of relevant nutritional and physiological indices.[Result] There were no significant differences of body weight,food conversion rate and organ indices between rats in PY group and CK group.Mean corpuscular hemoglobin in PY group was significantly lower than that in CK group;hemoglobin showed no significant difference with that in CK group;eosnophils was lower than that in CK group.Low density lipoprotein-cholesterol,total cholesterol and atherogenic index in PY group were lower than that in the other three groups;anti-atherogenic index was the highest among the four groups,while showing no significant difference;triglyceride content was lower than that in CK group.Among the antioxidant indices,the activity of catalase and superoxide dismutase were higher than that in CK group,while malondialdehyde content was lower than that in CK group.[Conclusion] Purple yam showed the trend of reducing the content of blood glucose,total cholesterol,low density lipoprotein-cholesterol,triglyceride,malondialdehyde,and raising the activity of glutathione peroxidase,superoxide dismutase and catalase,thus having certain antioxidative function.