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在动物王国的Plotozoa中被归类为绿色藻类。）在大气中，长度为20-50微米，宽度为长度的1/5，可以改变身体，食物或营养的形状，直接吸收细胞表面。补充维生素B_1和B_ <2>在黑暗中，需要有机能源。 tharvest的Euglena细胞可以将蜡酯（如蜡酯）征收，或者或或或或或或或或或或或或或或或或或或或或或或或或 /或或或或或或或或或或或或或或或或或或或或或或或或抗抗抗毒剂。细胞生物（例如小球藻）类似于奶牛酪蛋白，甘油三酸酯是一种不饱和的脂肪酸，尤其是亚油酸的脂肪酸，该生物体具有特征性的β-1.3-葡聚糖， Truehalose也适用于小动物的烟雾，通过暴露于强烈的照明或添加一些细胞的细胞中，维生素是非常富裕的。人类的营养物质在月球基地的近距离环境生活支持系统中