초록 |
A unicellular green microalga, Haematococcus pluvialis, has been focused as a microbial source of astaxanthin production. Haematococcus pluvialis accumulates the highest level of astaxanthin (up to 4%/g [dry weight]) and seems to be a very promising source of natural astaxanthin. Thus beneficial role of astaxanthin as a food supplement for humans has been suggested.In industry, outdoor system of a largescale such as a open pond for mass production was generally used because cell cultivation might be difficult to handle and a high cost of energy to sterilize the colsed-photobioreactor system. Thus, the optimization ofHaematococcus pluvialiscultivation were necessary after the growth condition was prepared by outdoor environment. In this study, the microalgal Haematococcus pluvialis were cultured in the medium with or without sterilization. Moreover, to minimize the contamination of culture, NIES medium was modified except carbon source (NIES-C). |