瘦肉精猪肉如何辨别

瘦肉精猪肉如何辨别 如何辨别“瘦肉精”猪肉 专家教你四种方法 河南生猪“瘦肉精”案件被曝光以来，“瘦肉精”一时成为社会关注焦点。“瘦肉精”到底是什么东西,危害几何,如何鉴别是不是“瘦肉精”猪肉, “瘦肉精”是什么 国家首席兽医官于康震说，“瘦肉精”是β-肾上腺受体激动剂类化合物的俗称，包括盐酸克伦特罗、莱克多巴胺和沙丁胺醇等十几种物质。β-激动剂类化合物大多是医学临床普遍使用的平喘类药物。其中，盐酸克伦特罗因药效显著、价格低廉，是此类药物中应用最为普遍的一种。 盐酸克伦特罗为白色或类白色的结晶粉末，无臭、味苦，熔点161?，溶于水、乙醇，微溶于丙酮，不溶于乙醚，作为医用处方药，需要在医生的指导下购买使用。它们的共同特征是，大大减少食用猪的脂肪、增加瘦肉，缩短猪的生长期。但是如果大量摄入瘦肉精，这些物质很难通过猪的代谢排出体外，聚集于肌肉、内脏等各部位。人食用此类猪肉后，会带来巨大健康隐患。 欧美严禁“瘦肉精” 上世纪80年代初，美国学者发现给动物饲喂盐酸克伦特罗，可以提高瘦肉率和饲料转化率，获得很好经济效益。由此，美国开始将其用于动物养殖，并逐渐推广到其他国家。后来发现其毒副作用较大，80年代末欧盟、美国先后公布禁止使用。随后，美国制药企业研究出毒性小、代谢快的替代品—— 莱克多advantages, facing the Yangtze River Delta, Pearl River Delta, Shandong peninsula, Beijing-Tianjin-Tangshan area, targeted investment promotion several times. Industry-led unit and various town streets are developing detailed promotion plans, the basis of what is specific to each industry, has formed a kind of scale, need to bring in the kind of projects each town street has the kind of resources, what location, focus on the development of the kind of industries. Four stroke technology and science. Determinants of technology is the County's economic development through scientific and technological innovation, improve product value-added and improve economic competitiveness, is the inevitable way to achieve leapfrog development. Talent is the city center city's first resource, is the primary industry development, and revitalization of the social protection. So, in terms of skills: to catch ... Competitive. Encouraging enterprises to actively undertake science and technology projects, strengthening research cooperation, using advanced technology to increase the added value of their products to ensure that introduction of transforming scientific and technological achievements during the year ... ... New research enterprises ... ... Home, creating innovative platforms ... ... Generic classifier. In: first, we must strengthen the cultivation of talent, efforts to increase vocational education and training and meet the basic demand of enterprise development. Then introduced a number of the county needed scarce education, health professionals, meet social development needs to invest more in machinery, pharmaceutical manufacturing research and development in higher education, such as the introduction of talent to meet the need. Third, we must rely on ... ... Post-doctoral workstation, ... ... Food research station platform, to the XX University to find experts 巴胺，使用时只要严格掌握剂量、执行停药期规定，几乎不会在动物体内残留。美国、加拿大、墨西哥等20多个国家先后批准将莱克多巴胺用于生猪养殖。 美国允许使用莱克多巴胺，不过有详细具体的使用要求，对它的作用要求讲清楚。使用莱克多巴胺养出来的猪，出售的时候会标注清楚。莱克多巴胺代谢快，不容易残留在猪的肌肉里，美国FDA(食品药品监督管理局)制定的残留允许值是猪肉中50ppb(十亿分之一，50ppb相当于每公斤中含50微克)，牛肉中的安全则为30ppb。 猪内脏会有残留，但美国人不吃猪内脏，和中国国情不一样。欧洲是完全禁止的。上世纪90年代初，“瘦肉精”传入我国，1998年广东省高明市发生首例境内食用含盐酸克伦特罗猪肺中毒事件，引起了有关方面及社会关注，随后被禁止使用。 瘦肉精中毒有何症状 “瘦肉精”进入人体后，会对人体造成哪些危害呢,专家说主要有几大类危害: “瘦肉精”进入体内后具有分布快、消除慢的特点。其化学性质稳定，烹调时难以破坏它的毒性。急性中毒有手抖甚至不能站立，头晕，乏力，原有心律失常的患者更容易发生反应，心动过速，室性早搏，心电图示S-T段压低与T波倒置。 advantages, facing the Yangtze River Delta, Pearl River Delta, Shandong peninsula, Beijing-Tianjin-Tangshan area, targeted investment promotion several times. Industry-led unit and various town streets are developing detailed promotion plans, the basis of what is specific to each industry, has formed a kind of scale, need to bring in the kind of projects each town street has the kind of resources, what location, focus on the development of the kind of industries. Four stroke technology and science. Determinants of technology is the County's economic development through scientific and technological innovation, improve product value-added and improve economic competitiveness, is the inevitable way to achieve leapfrog development. Talent is the city center city's first resource, is the primary industry development, and revitalization of the social protection. So, in terms of skills: to catch ... Competitive. Encouraging enterprises to actively undertake science and technology projects, strengthening research cooperation, using advanced technology to increase the added value of their products to ensure that introduction of transforming scientific and technological achievements during the year ... ... New research enterprises ... ... Home, creating innovative platforms ... ... Generic classifier. In: first, we must strengthen the cultivation of talent, efforts to increase vocational education and training and meet the basic demand of enterprise development. Then introduced a number of the county needed scarce education, health professionals, meet social development needs to invest more in machinery, pharmaceutical manufacturing research and development in higher education, such as the introduction of talent to meet the need. Third, we must rely on ... ... Post-doctoral workstation, ... ... Food research station platform, to the XX University to find experts “瘦肉精”毒性较强，用药过多或无病用药会出现心慌、战栗、头痛、恶心、呕吐等不良反应。尤其对高血压、心脏病、甲亢、前列腺肥大等患者，其危险性更为严重。长期使用，有可能导致染色体畸变，会诱发恶性肿瘤。 与糖皮质激素合用可引起低血钾，从而导致心律失常，引起有心脏病史者旧病复发。 反复使用会产生耐受性，对支气管扩张作用减弱及持续时间缩短。虽然克伦特罗残留的毒作用为轻度的，但美国FDA研究表明，应用拟交感神经药者或对前药过敏者，对克伦特罗的反应要比正常健康个体更为严重。 FDA担心非法应用克伦特罗可导致此药的生产工人患病或死亡。FDA指出，职业性吸入克伦特罗对心血管的影响，可能要比经食品摄食的危害性更大，但有待于进一步的证实。 如何辨别“瘦肉精”猪肉 “瘦肉精”猪肉与普通猪肉有哪些不同呢,专家说认真辨别，它们还是有差别的，主要从以下几个方面来看: 一看:看猪肉脂肪(猪油)。一般含瘦肉精的猪肉肉色异常鲜艳;生猪吃“药”生长后，其皮下脂肪层明显较薄，通常不足1厘米，切成二三指宽的猪肉比较软，不能立于案;瘦肉与脂肪间有黄色液体流出，脂肪特别薄;含有“瘦肉精”advantages, facing the Yangtze River Delta, Pearl River Delta, Shandong peninsula, Beijing-Tianjin-Tangshan area, targeted investment promotion several times. Industry-led unit and various town streets are developing detailed promotion plans, the basis of what is specific to each industry, has formed a kind of scale, need to bring in the kind of projects each town street has the kind of resources, what location, focus on the development of the kind of industries. Four stroke technology and science. Determinants of technology is the County's economic development through scientific and technological innovation, improve product value-added and improve economic competitiveness, is the inevitable way to achieve leapfrog development. Talent is the city center city's first resource, is the primary industry development, and revitalization of the social protection. So, in terms of skills: to catch ... Competitive. Encouraging enterprises to actively undertake science and technology projects, strengthening research cooperation, using advanced technology to increase the added value of their products to ensure that introduction of transforming scientific and technological achievements during the year ... ... New research enterprises ... ... Home, creating innovative platforms ... ... Generic classifier. In: first, we must strengthen the cultivation of talent, efforts to increase vocational education and training and meet the basic demand of enterprise development. Then introduced a number of the county needed scarce education, health professionals, meet social development needs to invest more in machinery, pharmaceutical manufacturing research and development in higher education, such as the introduction of talent to meet the need. Third, we must rely on ... ... Post-doctoral workstation, ... ... Food research station platform, to the XX University to find experts 的猪肉后臀肌饱满突出，脂肪层非常薄，两侧腹股沟的脂肪层内毛细血管分布较密，甚至充血。 二察:观察瘦肉的色泽。含有“瘦肉精”的猪肉肉色较深，肉质鲜艳，颜色为鲜红色，纤维比较疏松，时有少量“汗水”渗出肉面。而一般健康的瘦猪肉是淡红色，肉质弹性好，肉上没有“出汗”现象。 三测:用PH值试纸检测。正常新鲜肉多呈中性和弱碱性，宰后1小时PH值为6.2-6.3;自然条件下冷却6小时以上PH值为5.6-6.0，而含有“瘦肉精”的猪肉则偏酸性，pH值明显小于正常范围。 四(购买时一定看清该猪肉是否盖有检疫印章和检疫合格证明。 而对于网上销售的“瘦肉精检测卡”，专家说各种食品安全检测卡操作简单，但检测结果却可能存在一定误差，“检测过程不严密，很有可能导致各种错误的检测结果。” 该工作人员表示，快速检测卡检测出来的数据只能作为一种初步判定，检测样品是否涉嫌不合格，目前，还是按国家检测标准的法定程序进行检测，瘦肉精的辨别还是以权威部门检测为准。 “目前，瘦肉精的检测技术已经非常成熟。”专家说，一般他们会首先采取一种叫做“酶联免疫”的检测方式对进行筛选。如果该样本显示为阴性，则表明不含瘦肉精。如果样本显示为阳性，他们会采取“气相色谱质谱法”或“液相色谱质谱法”进行确证;整个检测过程大约需要四个小时左右。 advantages, facing the Yangtze River Delta, Pearl River Delta, Shandong peninsula, Beijing-Tianjin-Tangshan area, targeted investment promotion several times. Industry-led unit and various town streets are developing detailed promotion plans, the basis of what is specific to each industry, has formed a kind of scale, need to bring in the kind of projects each town street has the kind of resources, what location, focus on the development of the kind of industries. Four stroke technology and science. Determinants of technology is the County's economic development through scientific and technological innovation, improve product value-added and improve economic competitiveness, is the inevitable way to achieve leapfrog development. Talent is the city center city's first resource, is the primary industry development, and revitalization of the social protection. So, in terms of skills: to catch ... Competitive. Encouraging enterprises to actively undertake science and technology projects, strengthening research cooperation, using advanced technology to increase the added value of their products to ensure that introduction of transforming scientific and technological achievements during the year ... ... New research enterprises ... ... Home, creating innovative platforms ... ... Generic classifier. In: first, we must strengthen the cultivation of talent, efforts to increase vocational education and training and meet the basic demand of enterprise development. Then introduced a number of the county needed scarce education, health professionals, meet social development needs to invest more in machinery, pharmaceutical manufacturing research and development in higher education, such as the introduction of talent to meet the need. Third, we must rely on ... ... Post-doctoral workstation, ... ... Food research station platform, to the XX University to find experts 健康吃肉几点指南 怎么样吃猪肉才健康、卫生、科学,专家提出以下几点意见: 1.食用时应除去猪颈部的粉灰色腮腺及全身各部的灰色、黄色或暗红色的“肉疙瘩”，这些器官内可能含有很多病菌和病毒，若食用则易感染疾病。 2.猪肉属酸性食物，为保持膳食平衡，烹调时宜适量搭配些豆类和蔬菜等碱性食物，如土豆、萝卜、海带、大白菜、芋头、藕、木耳、豆腐等。 3.猪肉的烹调方式五花八门，从营养角度，以炖、煮、蒸为好，炸和烤最差。因为在炸、烤的高温下，肉的蛋白质会变性生成苯并芘等有致癌作用的化学物，故应尽量避免。 4.猪肉烹调前不要用热水清洗，因猪肉中含有一种肌溶蛋白的物质，在15摄氏度以上的水中易溶解，若用热水浸泡就会散失很多营养，同时口味也欠佳。 5.牛奶与瘦肉不合适同食，因为牛奶里含有大量的钙，而瘦肉里则含磷，这两种营养素不能同时吸收。另外食用猪肉后不宜大量饮茶，因为茶叶的鞣酸会与蛋白质合成具有收敛性的鞣酸蛋白质，使肠蠕动减慢，延长粪便在肠道中的滞留时间。 advantages, facing the Yangtze River Delta, Pearl River Delta, Shandong peninsula, Beijing-Tianjin-Tangshan area, targeted investment promotion several times. Industry-led unit and various town streets are developing detailed promotion plans, the basis of what is specific to each industry, has formed a kind of scale, need to bring in the kind of projects each town street has the kind of resources, what location, focus on the development of the kind of industries. Four stroke technology and science. Determinants of technology is the County's economic development through scientific and technological innovation, improve product value-added and improve economic competitiveness, is the inevitable way to achieve leapfrog development. Talent is the city center city's first resource, is the primary industry development, and revitalization of the social protection. So, in terms of skills: to catch ... Competitive. Encouraging enterprises to actively undertake science and technology projects, strengthening research cooperation, using advanced technology to increase the added value of their products to ensure that introduction of transforming scientific and technological achievements during the year ... ... New research enterprises ... ... Home, creating innovative platforms ... ... Generic classifier. In: first, we must strengthen the cultivation of talent, efforts to increase vocational education and training and meet the basic demand of enterprise development. Then introduced a number of the county needed scarce education, health professionals, meet social development needs to invest more in machinery, pharmaceutical manufacturing research and development in higher education, such as the introduction of talent to meet the need. Third, we must rely on ... ... Post-doctoral workstation, ... ... Food research station platform, to the XX University to find experts