加拿大卫生部
www.hc-sc.gc.ca www.hc - sc.gc.ca
经过仔细的评估,加拿大卫生部的结论是玉米已改变基因,使其对某些害虫抗药性没有比其他成分或市售玉米品种营养品质的不同,而且它是食品中使用。 Consequently, Health Canada has notified Ciba Seeds that it has no objection to the sale of this corn in Canada.因此,加拿大卫生部已通知汽巴种子,它已经没有这个在加拿大的玉米销售反对。
The corn has been genetically modified to protect it against insect pests, particularly the European Core Borer (ECB), a major insect pest in corn agriculture.玉米已被基因改造,以防止,害虫特别是欧洲的核心是玉米螟(ECB)的,一个重要的农业害虫玉米害虫。
Ciba Seeds has synthesized a gene, the Bt gene, that contains a truncated form of an insect-control protein from Bacillus thuringiensis subspecies kurstaki (Btk).汽巴种子已合成了一种基因,Bt基因,其中包含Btk制剂)截断形式苏云金芽孢杆菌亚种kurstaki(昆虫控制蛋白芽孢杆菌 。 When the gene is inserted into field corn, the corn produces the insect-control protein in its leaves and pollen, which ECB larvae feed upon.当基因插入到外地玉米,玉米生产在其叶子和花粉的昆虫控制蛋白,欧洲央行幼虫饲料后。 The insect gut processes the protein similarly to the insecticidal protein produced by Btk in nature and in pesticides based upon Btk, and the insect is killed.昆虫肠道处理杀虫蛋白类似的蛋白质Btk制剂生产的性质和对Btk制剂的杀虫剂,昆虫被杀死。 This development permits producers to reduce their use of pesticides, which can leave chemical residues in the environment and on the corn.这种发展允许生产者减少农药的使用,它可以留在环境和对玉米的化学残留物。
A second gene has also been inserted into the corn to express a protein, phosphinothricin acetyltransferase (PAT).第二个基因也被插入到玉米来表达的一种蛋白质,膦乙酰转移酶(八)。 This protein is an enzyme that acts as a biological marker to allow researchers to identify the modified plants.这种蛋白是一种酶作为一种生物标记,以使研究人员找出基因植物的行为。
The insect-control protein is produced in very small quantities in corn leaves and pollen; most other plant tissues, including kernels, have barely detectable levels of the protein.昆虫控制蛋白的产生,在玉米叶片和花粉的数量非常小,大多数其他植物组织,包括内核,具有蛋白质几乎检测不到的水平。 Both the insect-control protein and the PAT protein are expected to be destroyed during the processing of grain into food products.无论是昆虫控制蛋白和八蛋白质,预计将在粮食加工成食品销毁。 Digestibility studies have shown that, in the unlikely event that any proteins persist, they will be digested as conventional dietary protein.消化率的研究表明,在万一任何蛋白持续存在,他们将作为常规饲料蛋白质消化。 Acute oral toxicity studies in mice and birds indicated no effect from either the insect-control protein or the PAT protein.小鼠急性经口毒性和鸟类的研究表明没有任何昆虫控制的PAT蛋白或蛋白的作用。 Comparisons of the insect-resistant corn with other commercial corn varieties found no difference in the concentration and bioavailability of nutrients.与其他商业的玉米品种抗虫玉米比较没有发现营养成分的含量和生物利用度的差异。
Health Canada's assessment of the insect-resistant corn was conducted according to the Guidelines for Safety Assessment of Novel Foods (September 1994).加拿大卫生部的玉米评估的抗虫根据1994年进行)的指导方针的新食品安全性评价 (九月。 These guidelines are based on internationally accepted principles for establishing the safety of foods derived from genetically modified organisms, and were developed in consultation with other government agencies, consumers, and industry.这些准则是根据国际公认的原则,建立了转基因生物的食品安全,并与其他政府机构,消费者和业界协商。
This assessment relates only to the food use of the insect-resistant corn.这种评估只涉及到抗虫玉米食物中使用。 Issues related to growing this corn in Canada are being addressed separately through existing regulatory procedures in Agriculture and Agri-Food Canada.此有关的问题越来越多,加拿大玉米正在通过现有的农业和农业食品部的监管程序分开。 |