螺旋藻是生长在热带和亚热带碱性盐湖中的一种蓝色光合自养微细藻类 ,因外形酷似钟表发条的螺旋而得名。据有关资料介绍 ,螺旋藻原产于非洲乍得湖。当地居民因长期食用这种藻类 ,虽然生活异常困苦 ,体格却惊人的强壮 ,并且长寿。这种现象引起了人们重视。从 2 0世纪 60年代起 , Spirulina is a blue photosynthetic autotrophic algae that grows in the tropical and subtropical alkaline salt lakes and is named for the shape of a spiral resembling clockwork. According to the information, Spirulina native to Lake Chad in Africa. Because of long-term consumption of this algae, local residents are amazingly strong and longevity, although their lives are extremely difficult. This phenomenon has attracted people’s attention. From the 1960s onwards,