香料化学专业知识省公共课一等奖全国赛课获奖课件.pptx

Food Coloring Agents and Plant Food Food Coloring Agents and Plant Food Supplements Derived fromVitis vinifera:A New Supplements Derived fromVitis vinifera:A New Source of Human Exposure to Ochratoxin ASource of Human Exposure to Ochratoxin A分享人：杨雪芳第1页目录目录1.1.文章目标介绍文章目标介绍2.2.文章重点关键词介绍文章重点关键词介绍 3.3.主要原料和分析方法主要原料和分析方法4.4.结果与讨论结果与讨论 5.5.总结总结 第2页一、文章目一、文章目 The The high high incidence incidence of of OTA OTA contamination contamination in in PFS PFS and and food food coloring coloring agents agents derived derived from from V.V.vinifera vinifera suggests suggests that that maximum maximum permitted permitted level(s)level(s)should should be be established for this mycotoxin in these products.established for this mycotoxin in these products.第3页二、关键词二、关键词ochratoxin Aochratoxin A：赭曲霉素赭曲霉素A A，一个含有肾毒性和致癌作用霉菌毒素。，一个含有肾毒性和致癌作用霉菌毒素。plant plant food food supplementssupplements：Plant Plant food food supplements supplements(PFS)(PFS)are are widely widely consumed consumed because because they they are are suggested suggested to to maintain maintain and and promote promote health health or or reduce reduce the the risk risk factors factors for for diseases.diseases.（保保持持和提升健康水平，降低患病几率）和提升健康水平，降低患病几率）第4页Grape Grape pomacespomaces（葡葡萄萄果果渣渣）：Grape Grape pomaces pomaces are are used used to to produce produce pomace pomace brandy,brandy,grape grape seed seed oil,oil,fodder,fodder,fertilizer,fertilizer,biogas,biogas,grape grape polyphenols,polyphenols,food food coloring,coloring,tartrates tartrates and and food food supplements.supplements.（用途很广泛）（用途很广泛）Vitis Vitis viniferavinifera（酿酿 酒酒 用用 葡葡 萄萄）：are are commonly commonly used used to to formulate formulate food food antioxidant antioxidant supplements supplements due due to to their their high high content of content of polyphenolspolyphenols（多酚）（多酚）.第5页三、主要原料和分析方法三、主要原料和分析方法试剂和原料：试剂和原料：OTAOTA（solidsolid）,The stock solution,The stock solution,Standard solutions,acetonitrile,methanol,Standard solutions,acetonitrile,methanol,water(HPLC grade),glacial acetic acid,water(HPLC grade),glacial acetic acid,sodium chloride(ACS grade),polyethylene glycol,sodium chloride(ACS grade),polyethylene glycol,sodium hydrogen carbonate(NaHCO sodium hydrogen carbonate(NaHCO3 3,ACS grade),ACS grade)样品：样品：1.Commercially available PFS,FCA,and leavening1.Commercially available PFS,FCA,and leavening agents containing tartrates agents containing tartrates（4141个）个）2.Eight additional samples were collected in two 2.Eight additional samples were collected in two processing industries processing industries（8 8个）个）第6页分析方法：分析方法：1.1.样品萃取样品萃取 2.2.离心分离离心分离 3.3.纯净提取液在氮气保护下干燥纯净提取液在氮气保护下干燥 4.4.回收率试验回收率试验结果分析：结果分析：1.1.色谱法色谱法 2.2.计算出计算出PDIPDI第7页四、结果与讨论四、结果与讨论方方法法优优劣劣：Analysis Analysis of of spiked spiked blank blank samples samples demonstrated demonstrated that that the method generated the method generated accurate and precise resultsaccurate and precise results.第8页1.Commercial PFS samples(75%)were found contaminated with OTA at levels ranging from 1.1620.23 g/kg.2.The PFS across different countries is not homogeneous and the consequence is also different.3.The author had calculated PDI of 0.15 ng/kg.4.The results reported herein demonstrate the high incidence and,for some samples,the high level of OTA in PFS and food coloring agents derived from V.vinifera第9页五、总结五、总结1.1.文文章章主主要要是是为为了了分分析析各各种种样样品品中中OTAOTA含含量量，以以及及OTAOTA对对各各种种副副产产品品影影响响2.2.在在这这篇篇文文章章中中，从从目目标标到到选选样样再再到到测测样样，甚甚至至到到结结果果分分析析，让让我我看看到作者严谨性到作者严谨性3.3.从试验结果看，我们日常生活饮食起源和健康情况需要相当注意从试验结果看，我们日常生活饮食起源和健康情况需要相当注意第10页第11页