Chlorella was discovered and classified in 1890; it is a single-celled freshwater green algae. In its freshwater environment, the microscopic algae has a large reserve of chlorophyll and a range of rare nutrients involved in photosynthesis by absorbing carbon dioxide, thus saturating the air with oxygen. The heavy-duty cell walls of chlorella protect its nucleus from the effects of unfavorable environmental factors. The middle part of its...
