The rapid counting method for 2-MIB-producing cyanobacteria ( sp.) using fluorescence detection of phycocyanin pigments in algal cells

The sudden occurrence of odor in drinking water is one of the significant challenges for drinking water utilities. The concentrations of 2-methylisoborneol (2-MIB)-producing cyanobacteria, Pseudanabaena sp., can be a surrogate indicator for alarming the potential of odor occurrence. This study is aimed to develop a rapid and automatic method to accurately measure Pseudanabaena sp. concentrations using the fluorescence detection of auto-fluorescent chemical in cyanobacteria, phycocyanin. This study first identified that increase in 2-MIB concentrations in a lake almost simultaneously occurred according to the rise in the counts of Pseudanabaena sp., which was only