ALGAE 化学特性,用途語,生産方法
解説
一般に藻類というと，水中生活を営む体制の単純な植物を指すが，系統的には多様な生物群の集りで，厳密に定義すると，光合成の過程で酸素を放出する光合成生物からコケ植物と維管束植物を除く残りのすべてということになる。しかし光合成色素を欠くものでも体制や生殖方法が類似していれば，藻類として扱われる。［生育場所］ 藻類の生育場所はほとんどが水中，つまり海，汽水，および淡水である。海では太陽光の届く大陸棚の深さまでであり，それ以下の深海では育たない。
株式会社平凡社 世界大百科事典 第２版について 情報
定義
Chlorophyll-bearing organisms occurring in both saltand freshwater; they have no flowers or seeds, but reproduce by unicellular spores. They range in size from single cells to giant kelp over 100 ft long, and include most kinds of seaweed. There are four kinds of algae: brown, red, green, and blue-green. Blue-green algae are said to be the earliest form of life to appear on earth. The photosynthetic activity of algae accounts for the fact that over two-thirds of the world total photosynthesis takes place in the oceans. Algae are harvested and used as food supplements (see carrageenan, agar), soil conditioners, animal feeds, and a source of iodine; they also contain numerous minerals, vitamins, proteins, lipids, and essential amino acids. Alginic acid is another important derivative. Blue-green algae are water contaminants and are toxic to fish and other aquatic life. Phosphorus compounds in detergent wastes stimulate the growth of algae to such an extent that overpopulation at the water surface prevents light from reaching many of the plants; these decompose, removing oxygen and releasing carbon dioxide, thus making the water unsuitable for fish. Algae are being used in treatment of sewage and plant effluent in a proprietary flocculation process.
ALGAE 上流と下流の製品情報
原材料
準備製品