共查询到20条相似文献,搜索用时 46 毫秒
1.
本文针对目前鉴别食品中猪源性成分的方法,即实时荧光定量PCR技术进行综述,并展望其应用前景。 相似文献
2.
肉及肉制品动物源性成分鉴别技术研究进展 总被引:1,自引:0,他引:1
近年来,随着全球经济朝着一体化方向快速发展,我国经济水平和人们的生活水平较之前有了很大的提高,人们对于食品的要求不仅仅只是停留在数量上,更多的在于食品的质量与安全。肉及肉制品作为人们生活中必不可少的食品之一,在一定程度上可以为人们提供正常生命活动所需要的丰富的维生素、脂肪和蛋白质等。但是,近年来随着社会经济的快速发展,不少肉制品行业受利益的驱使,造假掺假的行为层出不穷,这在一定程度上损害和侵犯了广大消费者的合法权益,并且在社会上产生了非常严重的不良后果。因此,加强肉及肉制品动物源性成分鉴别技术的研究刻不容缓。 相似文献
3.
食品和饲料中动物源成分的检测方法的进展 总被引:8,自引:0,他引:8
由于近年来欧洲及世界上许多国家相继发生了疯牛病、羊痒病等疾病,食品和饲料中动物源成分的检测显得越来越重要.国际上检测食品和饲料中的动物源成分有3种方法(1)以显微镜观察为基础的方法;(2)以检测蛋白质为基础的方法;(3)以检测DNA为基础的方法.本文对这些方法的研究进展进行了综述,并对这些方法的优缺点进行了比较分析. 相似文献
4.
5.
6.
7.
多重PCR检测食品中转基因成分研究 总被引:7,自引:0,他引:7
[目的]建立检测转基因食品的多重PCR-聚丙烯酰胺凝胶电泳快速检测体系.[方法]针对转基因大豆、玉米、油菜的多个相对稳定的转基因元件,包括35S、NOS、EPSPS、Cry1A、NPTⅡ等基因,同时选定植物本身固有的大豆Lectin、玉米IVR、油菜Napin基因作为内源参照指示基因,设计、筛选出9对引物分别组成多重PCR,结合高灵敏度的聚丙烯酰胺凝胶电泳组成快速检测体系,对转基因食品进行检测,1~2天能完成整个检测过程.对珠海地区市售的大豆、玉米、油菜及其加工产品共185个样品中的转基因成分进行了初步调查.[结果]建立的多重PCR检测体系稳定可靠、特异性好,灵敏度高.调查的185份可疑食品样品中,转基因阳性率达27.6%.[结论]该检测体系快速可靠、灵敏准确、特异性好,且操作简便、成本低廉,是一种进行转基因食品检测的良好的技术模式.对珠海地区的转基因食品状况有了一定了解. 相似文献
8.
9.
动物源性食品中残留前处理技术及检测方法研究进展 总被引:1,自引:0,他引:1
人类食用的动物源性食品非常的多,包括可食用的蛋、奶、肉类、肉类制品(包括动物内脏及其制品)、水生动物制品等全部动物组织就是动物源性食品。由于这些食品受到环境的污染以及农药残留的影响,导致动物源性食品的残留,人类在食用这些食品后,身体健康方面受到损害、威胁。前处理技术是对这些食品样品中的目标化合物进行处理的过程,包括如何提取、净化、浓缩等方面。本文从两个方面对动物源性食品中残留进行了分析,包括前处理技术和检测方法。前处理技术主要包括固相萃取技术、凝胶渗透技术以及加速溶剂萃取技术;而检验方法主要包括液相色谱—荧光检测法、液相色谱—紫外检测法、液相色谱—质谱检测法这三种方法。希望通过本文的分析,能够为动物源性食品残留方面的研究提供一些参考依据。 相似文献
10.
"民以食为天,食以安为先",食品安全尤其是动物源性食品安全已成为全球共同关注的热点话题。实施可追溯性管理,是确保动物源性食品安全的有效途径。本文阐述了实行动物源性食品可追溯性管理对于食品安全和国际贸易的重要性和必要性, 相似文献
11.
12.
13.
Juan RosellÓn 《The journal of international trade & economic development》2013,22(4):397-425
Rules of origin of free trade arrangements limit the use of inputs from outside the preferential trade zone. A government negotiating a future FTAcan manipulate these rules in order to achieve national welfare objectives. The correct definition of rules of origin may help to enhance demand for domestically produced goods, promote national technological development, and maximize labour income. This paper proves that a more stringent rule of origin implies an increase of demand for the domestic factor if the substitution effect prevails over the effects caused by the decrease of the scale of operation in the domestic plant, and the reallocation of output between domestic and foreign plants. We further show that policy decisions regarding rules of origin that intertemporally maximize welfare and foster domestic technological evolution should be made at the greatest level of disaggregation that is feasible. 相似文献
14.
Readily available data are used to provide relevant decision making information on the highly subjective issue of animal rights. Two examples of alleged crowding; cattle being finished in concrete lots, and broilers in confined operations were evaluated to determine the impact on producers and consumers from increasing space per animal. It is concluded that similar policy changes, such as doubling floor space, can lead to dramatic differences in economic impact depending on the industry affected. It is shown that economic analysis can provide valuable information in estimating the tradeoffs in moral issues.
James R. Simpson is Professor and Livestock Marketing Economist at the Food and Resource Economics Department, University of Florida, Gainesville, U.S.A. He was formerly President and Senior Economist of InterAmerican Research Associates, and Cooperative Advisor of the Cooperative League of U.S.A. He was Scholar-in-Residence at the Rockefeller Foundation, Villa Serbelloni at Bellagio, Italy, 1979 and Visiting Research Professor at Kyoto University, Fall, 1982. His most important publications are: James R. Simpson and Don Farris, The World's Beef Business and Toward a Humanist Consensus on Ethics of International Development, in Morris Storer (ed.), Humanist Ethics. He is also author or co-author of over 100 articles in professional journals and chapters in books on livestock, international development and ethics.
Bernard E. Rollin is Professor of Philosophy and Professor of Physiology and Biophysics at the Colorado State University. His book Animal Rights and Human Morality (Prometheus Books) was selected as Outstanding Academic Book, in Choice Magazine, 1981. Other important publications by him are: Natural and Conventional Meaning: An Examination of the Distinction (Mouton, 1976); Papers published in the Journal of the American Veterinary Medical Association; Poetics; Kant-Studien; and Perspectives in Biology and Medicine. 相似文献
15.
16.
17.
18.
Konstantin Von Normann 《International Journal of Consumer Studies》2009,33(4):382-391
The German youth is relatively well informed about healthy eating, but does not act in accordance with this knowledge. It is also known from empirical studies that there is an association between lifestyles, food knowledge and the eating patterns of older teenagers. However, is there a similar correlation in regard to younger children? This article shows results of a study addressing this issue by empirically investigating leisure time activities, food intake and food knowledge. The study conducted with 907 children, on average 12 years old, out of an urban region in northwest Germany using a written questionnaire, implies that food patterns and food knowledge have to be improved because they are – on average – only marginally acceptable. On this level, they are not in line with a healthy future. For the first time in Germany, food patterns and food knowledge of seventh grade pupils were analysed in relation to their lifestyles. The study revealed four lifestyles. One family‐oriented lifestyle and three non‐family oriented lifestyles: outdoor and sociable youth, culture‐oriented youth, and multimedia kids. The family‐oriented lifestyle influences the children's food patterns in a positive way; the three found non‐family‐oriented lifestyles lead to less preferable food patterns. The results imply that there is a phase of unhealthy food patterns at the beginning of the second life decade, which seems to be linked to the detachment from the parents and the gained independency, expressed by the first self‐chosen lifestyles. As lifestyles have such a vital influence on healthy eating, and family is no longer the place where children get their everyday competencies, school has to enable pupils to make healthier food and lifestyle choices. 相似文献
19.
20.