NEW STRAIN HAEMATOCOCCUS CF. PLUVIALIS ROZHEN-12 - GROWTH, BIOCHEMICAL CHARACTERISTICS AND FUTURE PERSPECTIVES

摘要

Growth and biochemical composition of a newly isolated Bulgarian strain Haematococcus cf.pluvialis Rozhen-12 were studied in relation with culture media composition and temperature regime. The best growth and the highest carotenoid content (5.6 mg/g biomass) during the vegetative phase were obtained when the alga was cultivated at the highest salt concentration in the medium (with urea and NH4N03 as nitrogen sources). The strain showed a significant adaptive capacity, retaining high biomass productivity in a wide temperature range 25 - 38°C and a photon flux density of of 2 x 132 umol m~(-2) s~(-1), which makes this alga suitable for outdoor mass cultivation.