本人为西南农业大学作物与遗传育种专业学士,华东理工大学分子生物学(基因工程)专业硕士,对转基因食品的安全性有强烈的怀疑:
一、本人认为外来远源物种的基因在转基因生物里的表达会影响该生物细胞内的代谢平衡,很可能会产生微量的各种不明代谢中间物,而这些物质成为食物后在人体里可能被吸收,其毒副作用可能需要几年甚至几十年的积累,才会比较显著表现出来。光靠一些外国的商业数据或短期的动物实验是不能说明问题的。不要以为喂给实验动物过量的转基因食品,它没问题就说明转基因食品是安全的,假若实验动物对该不明代谢中间物一次性吸收量很少而且需要长期体内积累到一定量才会表现毒副作用的话,科学家喂再多量的行为都是愚蠢的。何况人又不是小白鼠。
要国人接受转基因食品,必须让教授拿出转基因食品安全的可信服的证据,而不是由教授叫嚣让老百姓拿出转基因食品不安全的证据。
二、在国外,公司的应用生物技术比政府资助的研究机构强。我国的留学归国教授很少进企业工作。我国的基因工程开发技术与食品安全检测手段毕竟比西方落后。帝国主义亡我之心不死。一旦国门向转基因食品敞开,天晓得有什么附带转入灭绝基因/衰败基因/潜毒基因之类的转基因食品在汉奸的帮助下进入中国,那将是中华民族的空前浩劫与灾难。所以,我们应该杜绝一切进口的转基因食品及其深加工产品。这是原则问题,没有什么让步或灵活性可言。这点,欧洲人眼睛是雪亮的。我们的科技水平比欧洲落后,人家都拒绝美国转基因食品打入欧洲,我们还有高级科技工作者在为美国转基因食品说话,真是中华民族伟大复兴指日可待啊!
三、本人不是与转基因食品有仇,而是以科学审慎的态度看待它,从民族感情出发提出自己的看法:对人体健康对环境无害的转基因作物与食品,我是欢迎的。对于从受国家和知识民众有效监督的本国研究机构开发出来的、得到长期安全性考评的转基因食品,我国人方可考虑是否接受。转基因食品从最最最源头到进入人口之前的所有环节都必须有监管,而且必须对大众有透明度。
本人从来不在网上发帖或回帖。实在是因为个性庸懒,今日为爱国之心驱动,且用自己平生所学所实践,谈谈个人的看法。
在GB-7023额外的温度的浸出40度,给出了测试只是conducNted在25度符合要求的GB1456和GB7023 . 另一个原因是,只有25度限制了价值.Leaching率在不同的温度是不同的,而且不能与限制取值25度。
有两个单词有问题,所以翻译部出来。
Our country has more than two thousand counties, crop planting area more than 20 one hundred million hectares and the need to about 140 million tons of chemical fertilizers in China, and less than 100 million tons of fertilizer, especially high quality fertilizer is very scarce in particular, mainly rely on import meet the demand of agricultural production. This will give other new fertilizer use has brought great market space. Long-term excessive fertilizer use, has produced thereby drop, utilization rate is low, the disadvantages of soil harden. 1985-1995 years, our chemical fertilizer consumption more than doubled, over the same period, the crop yield increased only 10%, most after the application of chemical fertilizer doesn't play its effect. According to the survey, the use of chemical fertilizers in China only 35-40%, and the rest of the soil is fixed, or leaching cause water pollution, environmental problems such as lake eutrophication. Together with chemical fertilizer is a gas-guzzling sichuan products, of the price hike in raw materials and the effects of the pollution of the environment, the ability to transform these fertilizer plant there, this inauguration limit the total production of the fertilizer increase in our country. Experts urgent call to reduce minority fertilizer usage, use more new biological fertilizer, use more organic fertilizer, the farmers also in desperate need of a new type of the material to meet the need of agricultural production.。
2.2 oil leaching process:。
From the pretreatment to squeeze workshop pickle seed cake, first enter the material box, and then by the scraper conveyor, closed ground dragon into leacher. In the leacher material and solvent to form a countercurrent leaching process. Just enter the materials with a high concentration of mixed oil spray, then the mixed oil concentration is reduced, in turn with fresh solvent spray, finally complete the leaching materials after drip dry bucket discharge from the pulp. Leaching time of 90-120 minutes, leaching temperature 50 to 55 ℃, leaching after wet meal containing solvents under 30%.。
2.3 wet meal steamed off working procedure:。
Wet meal by the scraper conveyor to evaporate offline, in steamed off-line through delaminating beforehand, since the steaming layer, direct steam desolventizing, hot air drying and cold wind cooling layer, after meal residue solvent of 700 PPM, moisture below 12% ?。
Through continuous seven years of positioning experiments, the sunlight greenhouse production in different production mode of soil NO3 -- N fertilizer space-time distribution and impact, the results show that, with the increase of planting, 3 kinds of production mode the soil profile NO3 - fertilizer N content and increase in an upward trend in order: the control > > green organic mode. Nitrogen fertilizer inputs (by), NO3 -- -- 40cm mainly distributed in the 0-0-60 cm soil and soil NO3 -- N the content general, crop growth, the lower middle and later, high low soil NO3 under 100cm at present, N content increased differently. Different production model of soil NO3-0-200cm, organic mean cumulative N 33.8% lower than pollution-free mode, than conventional model, pollution-free than conventional low 45.9% 18.3% low mode. Three patterns of fertilizer N has to NO3 - - 2m soil under the trend of velocity, chemical fertilizer, organic fertilizer could obviously lower than the soil NO3 -- N content, section of its accumulated under control, but not reasonable use of organic manure also can produce NO3 - N leaching and environmental pollution.。