建立了检测4种坚果(花生、杏仁、腰果、核桃)中38种农药残留的Qu ECh ERS-超高效液相色谱-串联质谱(UPLC-MS/MS)方法。样品均质后,用乙腈进行提取,经PSA和C_(18)净化后,采用Oasis PRi ME HLB固相萃取柱进一步净化,UPLC-MS/MS分析。对样...建立了检测4种坚果(花生、杏仁、腰果、核桃)中38种农药残留的Qu ECh ERS-超高效液相色谱-串联质谱(UPLC-MS/MS)方法。样品均质后,用乙腈进行提取,经PSA和C_(18)净化后,采用Oasis PRi ME HLB固相萃取柱进一步净化,UPLC-MS/MS分析。对样品前处理和色谱方法进行了优化。在多重反应监测(MRM)模式下进行质谱分析,外标法定量。38种农药的检出限范围(S/N=3)为0.01~10μg/kg,定量限(S/N=10)为0.05~20μg/kg,线性关系良好(r>0.991)。4种坚果中农药的平均加标回收率为51.0%~126.0%,相对标准偏差均小于20%。此方法灵敏、准确、有效,可用于坚果类食品中多种农药残留的同时测定。展开更多
Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due t...Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due to their biological properties, may be used as complementary treatment for type 2 diabetes mellitus. In this review, we have highlighted various functional foods as missing part of medical nutrition therapy in diabetic patients. Several in vitro, animal models and some human studies, have demonstrated that functional foods and nutraceuticals may improve postprandial hyperglycemia and adipose tissue metabolism modulatecarbohydrate and lipid metabolism. Functional foods may also improve dyslipidemia and insulin resistance, and attenuate oxidative stress and inflammatory processes and subsequently could prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy and retinopathy. In conclusion available data indicate that a functional foods-based diet may be a novel and comprehensive dietary approach for management of type 2 diabetes.展开更多
文摘建立了检测4种坚果(花生、杏仁、腰果、核桃)中38种农药残留的Qu ECh ERS-超高效液相色谱-串联质谱(UPLC-MS/MS)方法。样品均质后,用乙腈进行提取,经PSA和C_(18)净化后,采用Oasis PRi ME HLB固相萃取柱进一步净化,UPLC-MS/MS分析。对样品前处理和色谱方法进行了优化。在多重反应监测(MRM)模式下进行质谱分析,外标法定量。38种农药的检出限范围(S/N=3)为0.01~10μg/kg,定量限(S/N=10)为0.05~20μg/kg,线性关系良好(r>0.991)。4种坚果中农药的平均加标回收率为51.0%~126.0%,相对标准偏差均小于20%。此方法灵敏、准确、有效,可用于坚果类食品中多种农药残留的同时测定。
基金Supported by Research Institute of Endocrine Sciences,Shahid Beheshti University of Medical Sciences,Tehran,Iran
文摘Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due to their biological properties, may be used as complementary treatment for type 2 diabetes mellitus. In this review, we have highlighted various functional foods as missing part of medical nutrition therapy in diabetic patients. Several in vitro, animal models and some human studies, have demonstrated that functional foods and nutraceuticals may improve postprandial hyperglycemia and adipose tissue metabolism modulatecarbohydrate and lipid metabolism. Functional foods may also improve dyslipidemia and insulin resistance, and attenuate oxidative stress and inflammatory processes and subsequently could prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy and retinopathy. In conclusion available data indicate that a functional foods-based diet may be a novel and comprehensive dietary approach for management of type 2 diabetes.
