원문정보
초록
영어
From several decades, air pollution has made the ozone layer thinner resulting in more UV
radiation reached to the ground. The importance of UV blocking agent and sun screen cosmetics
has been increased for proper skin protection from skin-cancer, aging, and pigmentation.
Mycosporines and MAAs (mycosporine-like amino acids), known as true ‘multipurpose’
secondary metabolites, were found in many aquatic organisms such as cyanobacteria, red algae,
and dinoflagellates. They have many additional functions in the cell, other than their primary
biological role of UV blocking sunscreen. However, the biological functions of mycosporines
and MAAs were not completely understood yet. There have been many reports described about
the parameters that affect the productivity of MAAs in cyanobacteria. The major parameters are
known to be salinity and intensity of UV light. Some strains are found to be more sensitive to
temperature and desiccation.
All three major compounds of MAAs are found in Synechocystis sp. PCC 6803. However, few
works have been reported on the production of MAAs from Synechocystis sp. We have tried to
optimize the productivity of MAAs from Synechocystis sp. PCC6803 under various salinity and
intensity of UV light to check the possibility of commercial application.