8Margalith PZ. Production of ketocarotenoids by microalgae[J]. Appl Microbodbioirchnol, 1999,51:131 - 136.
9Grung M, D'souza F M L, Borowitzka A, et al. Algal carotenoids 51 secondary carotenoids 2 Haematococcus pluvialisaplanospores as a source of ( 3S, 3S )2astaxanthinesters [ J ]. Appl Phycol, 1992,4: 165 -171.
10Lee Y K, Ding S Y. Cell cycle and accumulation of astaxanthin in Haematococcus Lacusiris [ J ]. J of Phycology, 1994,30:445 - 449.