Construction of Remediation Eco-system Using Green Algae Grown under High CO_2 Conditions - Application of High Efficient System Utilized Sun-light -

利用高CO_2条件下生长的绿藻构建修复生态系统-利用阳光的高效系统的应用-

基本信息

批准号：
11556063
负责人：
NAKANO Yoshihisa
金额：
$ 8.7万
依托单位：
Osaka Prefecture University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

项目摘要

Euglena gracilis is classified both as green algae in the plant kingdom and as protozoa in the animal kingdom. This organism is a photosynthetic unicellular eukaryote and it appeared in the earth some 3 billion years ago. This organism can grow at 2〜5 pH ranges even under high concentration CO_2(20〜40%) in the atmosphere. Therefore, Euglena can be used in reducing CO_2 in the atmosphere.Euglena gracilis has an elongated body of 20〜50 microns in length and the width is 1/5 of the length. By changing the shape of the body, Euglena can move along with flagellum. Foods, or nutrients are absorbed directly through the cell surface. Euglena gracilis can grow in light inorganic media supplemented with vitamin B_1 and B_<12>. In darkness, an organic energy source is required. Euglena gracilis can be used as an assay organism for determining the presence of B_<12> in biological materials and natural water. The population of Euglena gracilis(as green blooms) can increase tremendously when the env … More ironment is suitable.It is also known that harvested Euglena cells can be utilized for the production of industrial materials like wax esters, squalene and hydrocarbons, or of bifunctional foods containing various vitamins, polyunsaturated fatty acids and antihypertensive agents. Euglena is rich in proteins. The amino acid score and net protein utilization are 88 and 79.9, respectively, higher than those of other single cell organisms such as Chlorella or Spirulina. The nutrients of Euglena are similar to cow-milk casein. Triglycerides are mainly composed of unsaturated fatty acids, especially linoleic acid which are essential fatty acids for mankind, and also contains considerable arachidonic acid when Euglena is grown autotrophically. Paramylon systhesized by the organism has the characteristic β-1.3-glucan in Euglena, and trehalose which is also available for mankind as a nutrient. Micronutrients, vitamins become extremely rich by being exposed to strong illumination or by adding some precursors. These observations show that Euglena cells are useful as sole nutrients in a closed ecosystem. In fact, Euglena gracilis has been studied for a long period as the nutrients for mankind in a closed environmental life support system on the lunar base. Less

Euglena Gracilis在植物王国被归类为绿藻，在动物界被归类为原生动物。该生物是一种照片同步的单细胞真核生物，它出现在大约30亿年前。即使在大气中的高浓度CO_2（20-40％）下，该生物也可以在2-5个pH范围内生长。因此，Euglena可用于减少大气中的CO_2。 Euglena gracilis的长度为20-50微米，宽度为长度的1/5。通过改变身体的形状，Euglena可以与Flagelum一起移动。食物或养分直接通过细胞表面吸收。 Euglena gracilis可以在补充维生素B_1和B_ <12>的轻型无机介质中生长。在黑暗中，需要一个有机能源。 Euglena gracilis可以用作确定生物材料和天然水中B_ <12>存在的分析生物。当Env…更多熨斗是合适的，还可以将收获的Euglena细胞用于生产工业材料，例如蜡酯，Sqyalene和碳氢化合物，或含有各种维生素酸酸和抗酸性的双交易用食物，因此，绿血（作为绿色血液）的种群可能会大大增加。 Euglena富含蛋白质。氨基酸评分和净蛋白利用率分别为88和79.9，高于其他单细胞生物，例如小球藻或螺旋藻。 Euglena的营养与牛乳酪蛋白相似。甘油三酸酯主要由不饱和脂肪酸组成，尤其是亚油酸，它们是人类必需的脂肪酸，当Euglena自动覆盖时，还含有考虑蛛网膜酸。由生物体化的paramylon系统具有特征性的β-1.3-葡聚糖，在Euglena中具有特征性的β-1.3-葡聚糖，而海藻糖也可作为人类作为营养素。微量营养素，通过暴露于强烈的照明或添加一些前体，维生素变得极为富含。这些观察结果表明，在封闭的生态系统中，Euglena细胞可用作唯一的营养。实际上，Euglena Gracilis长期以来一直是人类的营养，在月球基地的封闭环境生命支持系统中。较少的