The antioxidant ability of capsules containing oats avenanthramides on human body was evaluated in present study.Healthy people were randomized to supplementation with oats-derived avenanthramides capsules or placebo ...The antioxidant ability of capsules containing oats avenanthramides on human body was evaluated in present study.Healthy people were randomized to supplementation with oats-derived avenanthramides capsules or placebo for 1 mon.Plasma lipid peroxides and antioxidant status were measured.For 8 capsules （containing 3.12 mg avenanthramides） groups,the levels of serum superoxide dismutase （SOD） and reduced glutathione hormone （GSH） were significantly increased by 8.4 and 17.9%,respectively （P0.05）,and malondialdehyde （MDA） level significantly decreased by 28.1%.The total cholesterol （TC）,triglyceride （TG）,and low density lipoprotein cholesterol （LDL-C） levels were lowered by 11.1,28.1,and 15.1%,respectively （P0.05）.The high density blood lipoprotein cholesterol （HDL-C） levels in the same treat was increased by 13.2%.Based on our research,it can be concluded that oats extract containing avenanthramides possessed a high antioxidative activity on humans.It indicated that oat avenanthramides could be used to prevent hyperlipemic and angiocardiopathy.展开更多
基金supported by the Talent Fund of Chinese Academy of Agricultural Sciences,Chinathe Technology Transformation Fund,the Ministry of Sciences and Technology,China
文摘The antioxidant ability of capsules containing oats avenanthramides on human body was evaluated in present study.Healthy people were randomized to supplementation with oats-derived avenanthramides capsules or placebo for 1 mon.Plasma lipid peroxides and antioxidant status were measured.For 8 capsules （containing 3.12 mg avenanthramides） groups,the levels of serum superoxide dismutase （SOD） and reduced glutathione hormone （GSH） were significantly increased by 8.4 and 17.9%,respectively （P0.05）,and malondialdehyde （MDA） level significantly decreased by 28.1%.The total cholesterol （TC）,triglyceride （TG）,and low density lipoprotein cholesterol （LDL-C） levels were lowered by 11.1,28.1,and 15.1%,respectively （P0.05）.The high density blood lipoprotein cholesterol （HDL-C） levels in the same treat was increased by 13.2%.Based on our research,it can be concluded that oats extract containing avenanthramides possessed a high antioxidative activity on humans.It indicated that oat avenanthramides could be used to prevent hyperlipemic and angiocardiopathy.
文摘采用酸性染料比色法优化燕麦中总生物碱含量的测定方法。以曲尼司特为标准品对照,检测波长为340 nm,对酸性染料种类、缓冲液种类和酸性染料用量进行优化,确定最佳检测条件。结果表明,最佳检测条件为:酸性染料为溴甲酚紫,缓冲液为pH5.4的磷酸二氢钠-氢氧化钠,酸性染料用量为3 m L。经测定,本方法线性范围为0.306～45.9 mg/L,回归方程为y=0.04837x+0.00822,R^2=0.9994,平均回收率为94.22%,RSD=1.79%。表明该方法具有良好的线性关系,精密度高,重复性好,且操作简单,可为燕麦总生物碱含量的检测提供参考与依据。
