秋季来临,又是品尝大闸蟹的最佳时机,但在香港却被验出有含戴奥辛的毒蟹,超标将近1倍左右,产地地竟是来自桃园市的一处养殖场。
根据香港媒体报导,食安中心近日抽检85个大闸蟹样本,当中84个合格,但一款来自台湾桃园市养殖场的样本,被验出致癌物戴奥辛超标,每公克含有9.86皮克(pg,1皮克等于兆分之1克)的戴奥辛,确认已经超标,但所幸尚未流入市面。
对此,桃园市农业局获报前往位于中坜一处私人养殖场,发现业者未登记即私自圈养,业者供称是进口大闸蟹苗,养半年后出货,但对于养殖数量避重就轻,农业局先採样水质、抽检大闸蟹,对整池做移动管制,并调查蟹苗来源,厘清是在地污染或是进口苗的问题,也会针对未申请养登部分开罚。
美加州海域螃蟹有毒当局提醒民众
24日就是美国感恩节,除了传统的火鸡大餐,螃蟹也是许多家庭聚会时不可缺少的美食。但盛产邓杰内斯大螃蟹(Dungeness Crab)的加州,政府却第二年发出了提醒民众螃蟹有毒、推迟商业捕捞的告示。
加州环境健康危害评估办公室说,从加州北部的洪堡海湾到旧金山南部的雷斯呷超过120英里(192公里)沿线海域发现了含有软骨藻酸毒素的藻类大量繁殖。检验人员在这些海域检测后发现,至少一半邓杰内斯螃蟹样板含毒素超标。如被食用,将产生如食物中毒一样的后果,包括呼吸困难,失去意识甚至死亡。
加州渔业与野生动物局当日也在网站上发布通知,将无限期推迟商业捕捞螃蟹季。
这也是继去年之后,加州第二年发现西海岸海藻有毒,每年6千万美元的螃蟹捕捞业遭受严重影响。
螃蟹应该如何挑选?
螃蟹是否新鲜非常重要,死蟹中含有一定的毒性,因为当螃蟹已经死了,体内的组氨酸会分解产生有毒的组胺,螃蟹死的时间越久,毒性就越大。所以,买蟹一定要选择活的。
挑选时手指轻按蟹眼边的壳面,如蟹眼即动,则够生猛;将手指放于蟹爪间,如蟹爪有力,表示蟹够强健;
离开水的蟹吐出泡沫,是活蟹,可放心购买。要分辨雌雄很容易,蟹肚呈三角形的为雄,呈圆形的为雌。
但真正的内行看腿就能认出,雌蟹两螯上有灰黑的一团绒毛,但仅有此毛而已,余腿光洁;而公的八只腿上还有排列如刷的细毛。
( 责任编辑: 黄淑蓉 )
第一,看颜色。蟹其实是有三种颜色的,分别是青色、黄色、绿色,每一种颜色都有各自独特的特点和口感。青色蟹是湖蟹,无污染水域养成(如:阳澄湖)。绿色和黄色蟹是在泥塘里面养的泥塘蟹,因为绿藻沉淀在泥塘底部,所以污染了蟹体,变成绿色或黄色蟹。
第二,闻味道。湖蟹腥味淡,泥塘蟹土腥味很大。
第三,看干净程度。湖蟹在无污染水域长大,一般比较干净。泥塘蟹因为生长在泥地里,所以浑身都是污泥,蟹体很脏,蟹钩一直在泥浆中浸泡,呈红色。
第四,看腿毛。湖蟹腿毛长,呈金黄色,疏密整齐。泥塘蟹在污泥里长大,腿毛发黑,尽是泥浆。吃的时候要用刷子洗刷刷。
第五,口味特征。湖蟹腥味比较大,壳硬,肉质略粗,略有鲜甜味,需蘸醋去腥。
FreeMarker template error:
The following has evaluated to null or missing:
==> zxzx.logo [in template "zixun/baoguang_xiangxi.ftl" at line 269, column 30]
Tip: If the failing expression is known to be legally null/missing, either specify a default value with myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthessis: (myOptionVar.foo)!myDefault, (myOptionVar.foo)??
The failing instruction (FTL stack trace):
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==> #if zxzx.logo != "" [in template "zixun/baoguang_xiangxi.ftl" at line 269, column 25]
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Java stack trace (for programmers):
----------
freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...]
at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:98)
at freemarker.core.EvalUtil.compare(EvalUtil.java:230)
at freemarker.core.EvalUtil.compare(EvalUtil.java:148)
at freemarker.core.ComparisonExpression.evalToBoolean(ComparisonExpression.java:103)
at freemarker.core.IfBlock.accept(IfBlock.java:82)
at freemarker.core.Environment.visit(Environment.java:265)
at freemarker.core.MixedContent.accept(MixedContent.java:93)
at freemarker.core.Environment.visitByHiddingParent(Environment.java:286)
at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:193)
at freemarker.core.Environment.visitIteratorBlock(Environment.java:509)
at freemarker.core.IteratorBlock.accept(IteratorBlock.java:103)
at freemarker.core.Environment.visitByHiddingParent(Environment.java:286)
at freemarker.core.ConditionalBlock.accept(ConditionalBlock.java:86)
at freemarker.core.Environment.visit(Environment.java:265)
at freemarker.core.MixedContent.accept(MixedContent.java:93)
at freemarker.core.Environment.visit(Environment.java:265)
at freemarker.core.Environment.process(Environment.java:243)
at freemarker.template.Template.process(Template.java:277)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:366)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:283)
at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:233)
at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:250)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:817)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:669)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:574)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.modu.secure.html.filter.CacheFilter.doFilter(CacheFilter.java:90)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.modu.secure.util.AppUrlFilter.sendMsite(AppUrlFilter.java:311)
at com.modu.secure.util.AppUrlFilter.doFilter(AppUrlFilter.java:135)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:748)