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专家解读"地沟油"为何难检测 *终可能综合判断
日期:2024-05-06 21:17
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摘要:<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan"><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">昨天,一则消息引人关注:国家食品**风险评估中心通过卫生部网站表示,正在组织开展</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">检验方法的研究和论证工作,并向社会公开征集</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">的检验方法。</span><span style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"> <span lang="EN-US"><o:p></o:p></span></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> 今年</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">9</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">月,卫生部曾经发布消息称,正全力组织科研攻关研究鉴别</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">检验方法。据了解,目前已经征集到</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">5</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">种</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">检验方法,但在专家论证后,发现这些方法特异性不强。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">特异性不强是指没有很好地分辨出哪些是地沟油,哪些是食用油。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">卫生部有关负责人解释说,征集到的方法,尚不能作为</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">的有效判断手段。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> 就此,记者采访了长期以来一直对食品**问题保持关注的天津科技大学食品学院<st1:personname w:st="on" productid="王浩">王浩</st1:personname>博士,王浩认为,根治</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">关键不在于检测,而在于监管和治理。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><b><span style="font-family: 宋体; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> 解读</span></b><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><b><span style="font-family: 宋体; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> </span></b><b><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt">“</span></b><b><span style="font-family: 宋体; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span></b><b><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt">”</span></b><b><span style="font-family: 宋体; font-size: 9pt; mso-bidi-font-size: 12.0pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">成分复杂难检测</span></b><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> 王浩说,</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">本身是一个笼统的概念,包括一部分泔水油、炸制过的油以及动物的劣质下脚料制出来的油,是非**成分制出来的油的统称,成分比较复杂。一个不容忽视的情况是,现在的</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">生产已经不是人们印象中黑作坊似的制作规模,有的已经实现了工厂化生产,还出现与食用油按一定比例勾兑的情况。这给检测带来了更大的难度,用食用油的理化指标进行检测,这些工厂化生产的</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">都是合格的。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt"><o:p></o:p></span></p>
<p class="MsoNormal" align="left" style="text-align: left; margin: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto"><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> 王浩介绍,</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">之所以不好检测,原因在于还没有找到</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">与食用油的区分标志物。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">“</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">比如,我们看机动车和非机动车的区别,只需要看有无发动机即可,前者有发动机,后者没有发动机</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">;</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">再如检测早孕,只需要检测孕酮即可。现在,</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">‘</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">地沟油</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">’</span><span style="font-family: 宋体; font-size: 9pt; mso-font-kerning: 0pt; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">和食用油之间很难找到这样一种区分标志,如果找到就简单了。</span><span lang="EN-US" style="font-family: Tahoma; font-size: 9pt; mso-font-kerning: 0pt">”<o:p></o:p></span></p>
昨天,一则消息引人关注:国家食品**风险评估中心通过卫生部网站表示,正在组织开展“地沟油”检验方法的研究和论证工作,并向社会公开征集“地沟油”的检验方法。
今年9月,卫生部曾经发布消息称,正全力组织科研攻关研究鉴别“地沟油”检验方法。据了解,目前已经征集到5种“地沟油”检验方法,但在专家论证后,发现这些方法特异性不强。“特异性不强是指没有很好地分辨出哪些是地沟油,哪些是食用油。”卫生部有关负责人解释说,征集到的方法,尚不能作为“地沟油”的有效判断手段。
就此,记者采访了长期以来一直对食品**问题保持关注的天津科技大学食品学院
解读
“地沟油”成分复杂难检测
王浩说,“地沟油”本身是一个笼统的概念,包括一部分泔水油、炸制过的油以及动物的劣质下脚料制出来的油,是非**成分制出来的油的统称,成分比较复杂。一个不容忽视的情况是,现在的“地沟油”生产已经不是人们印象中黑作坊似的制作规模,有的已经实现了工厂化生产,还出现与食用油按一定比例勾兑的情况。这给检测带来了更大的难度,用食用油的理化指标进行检测,这些工厂化生产的“地沟油”都是合格的。
王浩介绍,“地沟油”之所以不好检测,原因在于还没有找到“地沟油”与食用油的区分标志物。“比如,我们看机动车和非机动车的区别,只需要看有无发动机即可,前者有发动机,后者没有发动机;再如检测早孕,只需要检测孕酮即可。现在,‘地沟油’和食用油之间很难找到这样一种区分标志,如果找到就简单了。”