Food, Genetically Modified

食物,转基因
  • 文章类型: Journal Article
    本文讨论了术语“倡导科学”的使用,这是科学的交流,超越了科学发现的简单报告,使用生物技术的案例研究。它认为,应使用倡导科学来区分现代民间社会组织为游说而解释科学知识的参与。它说明了这种新的交流过程如何改变了科学中的政治话语以及对科学在当代社会中的作用的普遍看法。
    The paper discusses the use of term \'advocacy science\' which is communication of science which goes beyond simple reporting of scientific findings, using the case study of biotechnology. It argues that advocacy science should be used to distinguish the engagement of modern civil society organizations to interpret scientific knowledge for their lobbying. It illustrates how this new communicative process has changed political discourse in science and general perception of the role of science in contemporary society.
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  • 文章类型: Journal Article
    转基因(GM)作物的生产正在世界各地增长,并有可能与粮食不安全和饥饿作斗争的机会,以及解决当前传统农业面临的问题。在这方面,转基因生物在食品和农业应用中的使用在过去十年中大大增加。然而,转基因作物的发展一直是一个引起人们极大兴趣和全球公众争议的问题。这个,除了怀疑,扼杀了这种做法在许多地区的大规模使用,包括伊朗。按理说,在审查了有关转基因作物的现有专家意见之后,可以对这种做法有更多的了解。因此,这项研究的目的是分析影响农业专家对转基因作物发展和相关政策的态度的预测因素。采用描述性相关研究方法,问卷数据来自伊朗西南部Gotvand区农业组织的65名专家.结果表明,农业专家意识到与转基因作物相关的环境效益和可能的风险。大多数与会者一致认为,转基因作物可以改善粮食安全,加快农村发展,并且是转基因作物标签做法的支持者。最后,对转基因作物的益处和态度之间存在正相关。
    The production of genetically modified (GM) crops is growing around the world, and with it possible opportunities to combat food insecurity and hunger, as well as solutions to current problems facing conventional agriculture. In this regard the use of GMOs in food and agricultural applications has increased greatly over the past decade. However, the development of GM crops has been a matter of considerable interest and worldwide public controversy. This, in addition to skepticism, has stifled the use of this practice on a large scale in many areas, including Iran. It stands to reason that a greater understanding of this practice could be formed after a review of the existing expert opinions surrounding GM crops. Therefore, the purpose of this study was to analyze the predictors that influence agricultural experts\' attitudes toward the development of and policies related to GM crops. Using a descriptive correlational research method, questionnaire data was collected from 65 experts from the Agricultural Organization in the Gotvand district in Southwest Iran. Results indicated that agricultural experts were aware of the environmental benefits and possible risks associated with GM crops. The majority of participants agreed that GM crops could improve food security and accelerate rural development, and were proponents of labeling practices for GM crops. Finally, there was a positive correlation between the perception of benefits and attitudes towards GM crops.
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  • 文章类型: Evaluation Study
    (1)当应用于食品代谢组学研究时,HNMR光谱在代谢物定量和平台稳健性方面具有优势。本文提供了(1)基于HNMR的常规和抗草甘膦转基因(GM)大豆的种子代谢多样性评估,该遗传谱系代表了35年的育种和不同的产量潜力。(1)收获种子的HNMR谱允许对27种代谢物进行定量,包括游离氨基酸,糖,糖有机酸,以及胆碱,O-乙酰胆碱,二甲胺,三七碱,和对甲酚.数据采用典型判别分析(CDA)和主方差成分分析(PVCA)。结果表明,(1)HNMR光谱可有效地突出显示所提供的遗传多样性样品组中代谢物水平的变化。结果还证实,代谢物的变异性受选择性育种和环境的影响,但不是基因改造。因此,代谢产物的变异性是作物改良的一个重要部分,已经发生了几十年,并且与安全使用史有关。
    (1)H NMR spectroscopy offers advantages in metabolite quantitation and platform robustness when applied in food metabolomics studies. This paper provides a (1)H NMR-based assessment of seed metabolomic diversity in conventional and glyphosate-resistant genetically modified (GM) soybean from a genetic lineage representing ∼35 years of breeding and differing yield potential. (1)H NMR profiling of harvested seed allowed quantitation of 27 metabolites, including free amino acids, sugars, and organic acids, as well as choline, O-acetylcholine, dimethylamine, trigonelline, and p-cresol. Data were analyzed by canonical discriminant analysis (CDA) and principal variance component analysis (PVCA). Results demonstrated that (1)H NMR spectroscopy was effective in highlighting variation in metabolite levels in the genetically diverse sample set presented. The results also confirmed that metabolite variability is influenced by selective breeding and environment, but not genetic modification. Therefore, metabolite variability is an integral part of crop improvement that has occurred for decades and is associated with a history of safe use.
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    文章类型: Journal Article
    This paper examines the definition of the terms \"food\" and \"drug\" as used in the Food, Drug and Cosmetic Act through the lens of biopharmed products. The paper uses the so-called \"banana vaccine\" as a case study to highlight the problems that occur when attempting to regulate a product that could be safely used as a food or as a drug. Specifically, the examination of this model illustrates the problems in the current definitional scheme. The paper considers how a product that straddles the definitional line between food and drug could be regulated and proposes a reformation to how the definitions are applied to products to better suit new technology in food and drugs.
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  • 文章类型: Journal Article
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  • 文章类型: News
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  • 文章类型: Journal Article
    Genetically modified (GM) food is discussed as an example of the controversial relation between the intrinsic uncertainty of the scientific approach and the demand of citizen-consumers to use products of science innovation that are known to be safe. On the whole, peer-reviewed studies on GM food safety do not note significant health risks, with a few exceptions, like the most renowned \"Pusztai affair\" and the recent \"Seralini case.\" These latter studies have been disregarded by the scientific community, based on incorrect experimental designs and statistic analysis. Such contradictory results show the complexity of risk evaluation, and raise concerns in the citizen-consumers against the GM food. A thoughtful consideration by scientific community and decision makers of the moral values that are present in risk evaluation and risk management should be the most trustable answer to citizen-consumers to their claim for clear and definitive answers concerning safety/un-safety of GM food.
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  • 文章类型: Journal Article
    While there has been a number of consumers\' studies looking at factors that influence individuals\' attitudes and behavior toward GM foods, few studies have considered agricultural professionals\' intentions in this regard. This study illuminates agricultural professionals\' insights toward GM foods in Southwest Iran. A random sample of 262 respondents was studied. The results indicated that the majority of the respondents had little knowledge about GM foods. They perceived few benefits or risks of GM foods. Their perceived benefits and trust in individuals and institutions had positive impacts on the behavioral intentions of the agricultural professionals. The results also revealed that the low knowledge level of the respondents had a negative impact on the behavioral intentions toward GM foods. This state of affairs is problematic, either GM foods have serious problems or the knowledge conveyed to the Iranian agricultural experts is inappropriate. We recommend a well defined communication strategy to provide information in such a way that allows individuals to feel adequately informed about GM foods. Furthermore, the development of trust and knowledge regarding GM foods can be greater when risk analysis frameworks are transparent, risk assessment methodologies are objective, all stakeholders are engaged in the risk management process, and risk communication focuses on consumers.
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  • 文章类型: Journal Article
    This review is based on a study commissioned by the European Commission on the evaluation of scientific, technical and institutional challenges, priorities and bottlenecks for biotechnologies and regional harmonisation of biosafety in Africa. Biotechnology was considered within four domains: agricultural biotechnologies (\'Green\'), industrial biotechnologies and biotechnologies for environmental remediation (\'White\'), biotechnologies in aquaculture (\'Blue\') and biotechnologies for healthcare (\'Red\'). An important consideration was the decline in partnerships between the EU and developing countries because of the original public antipathy to some green biotechnologies, particularly genetically modified organisms (GMOs) and food from GM crops in Europe. The study focus reported here was West Africa (Ghana, Senegal, Mali and Burkina Faso). The overall conclusion was that whereas high-quality research was proceeding in the countries visited, funding is not sustained and there is little evidence of practical application of biotechnology and benefit to farmers and the wider community. Research and development that was being carried out on genetically modified crop varieties was concentrating on improving food security and therefore unlikely to have significant impact on EU markets and consumers. However, there is much non-controversial green biotechnology such as molecular diagnostics for plant and animal disease and marker-assisted selection for breeding that has great potential application. Regarding white biotechnology, it is currently occupying only a very small industrial niche in West Africa, basically in the sole sector of the production of liquid biofuels (i.e., bio-ethanol) from indigenous and locally planted biomass (very often non-food crops). The presence of diffused small-scale fish production is the basis to develop and apply new (Blue) aquaculture technologies and, where the research conditions and the production sector can permit, to increase this type of production and the economy of this depressed areas. However, the problems bound to environmental protection must not be forgotten; priority should be given to monitor the risks of introduction of foreign species. Red biotechnologies potentially bring a vast domain of powerful tools and processes to achieve better human health, most notably improved diagnostics by molecular techniques, better targeting of pathogens and a better knowledge of their sensitivities to drugs to permit better treatment. Biosafety regulatory frameworks had been initiated in several countries, starting with primary biosafety law. However, disparate attitudes to the purpose of biosafety regulation (e.g., fostering informed decision-making versus \'giving the green-light for a flood of GMOs\') currently prevent a needed consensus for sub-regional harmonisation. To date, most R&D funding has come from North America with some commercial interests from Asia, but African biotechnology workers expressed strong desire for (re-)engagement with interested parties from the European Union. Although in some of the visited countries there are very well qualified personnel in molecular biology and biosafety/regulation, the main message received is that human resources and capacity building in-house are still needed. This could be achieved through home-based courses and capacity-building including funds for post-degree research to motivate and retain trained staff.
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  • 文章类型: Journal Article
    This study aims to identify the factors that affect consumers purchasing behaviour towards food products that are free from Genetic Modified Organism (GM Free) in a European Region and more precisely in the Prefecture of Drama-Kavala-Xanthi. Field interviews conducted in a random selected sample consisted of 337 consumers in the cities of Drama, Kavala, Xanthi, in November and December of 2009. Principal components analysis (PCA) was conducted in order to identify the factors that affect people in preferring consuming products that are GM Free. The factors that influence people in the study area to buy GM Free products are: (a) products\' certification as GM Free or organic products, (b) interest about the protection of the environment and nutrition value, (c) marketing issues, and (d) price and quality. Furthermore, cluster and discriminant analysis identified two groups of consumers: (a) those are influenced by the product price, quality and marketing aspects and (b) those are interested in product\'s certification and environmental protection. Non parametric statistical bivariate techniques were performed to profile the identified groups of consumers regarding their personal characteristics and some other factors affecting their buying behaviour.
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