香料化学.ppt

Food Coloring Agents and Plant Food Supplements Derived fromVitis vinifera: A New Source of Human Exposure to Ochratoxin A
分享人：杨雪芳
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目录





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一、文章目的
The high incidence of OTA contamination in PFS and food coloring agents derived from V. vinifera suggests that maximum permitted level(s) should be established for this mycotoxin in these products.
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二、关键词
ochratoxin A：赭曲霉素A，一种具有肾毒性和致癌作用的霉菌***。
plant food supplements：Plant food supplements (PFS) are widely consumed because they are suggested to maintain and promote health or reduce the risk factors for diseases.（保持和提升健康水平，降低患病几率）
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Grape pomaces（葡萄果渣）：Grape pomaces are used to produce pomace brandy, grape seed oil, fodder, fertilizer, biogas, grape polyphenols, food coloring, tartrates and food supplements.（用途很广泛）
Vitis vinifera（酿酒用葡萄）：are commonly used to formulate food antioxidant supplements due to their high content of polyphenols（多酚）.
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三、主要原料和分析方法
试剂和原料：OTA（solid）,The stock solution,
Standard solutions,acetonitrile,methanol,
water (HPLC grade), glacial acetic acid,
sodium chloride (ACS grade), polyethylene glycol ,
sodium hydrogen carbonate (NaHCO3, ACS grade)
样品： available PFS, FCA, and leavening
agents containing tartrates（41个）
additional samples were collected in two
processing industries（8个）
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分析方法：



结果分析：

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四、结果与讨论
方法的优劣：Analysis of spiked blank samples demonstrated that the method generated accurate and precise results.
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PFS samples (75%) were found contaminated with OTA at levels ranging from <− μg/kg.
PFS across different countries is not homogeneous and the consequence is also different.
author had calculated PDI of ng/kg.
results reported herein demonstrate the high