LUO Ning, ZHANG Sen, LIU Ping-huai. Effects of nitrogen and phosphorus on cell growth and lipid accumulation of tropic ocean microalgae strain Desmodesmus sp. WC08[J]. Science and Technology of Food Industry, 2016, (04): 223-227. DOI: 10.13386/j.issn1002-0306.2016.04.036
Citation: LUO Ning, ZHANG Sen, LIU Ping-huai. Effects of nitrogen and phosphorus on cell growth and lipid accumulation of tropic ocean microalgae strain Desmodesmus sp. WC08[J]. Science and Technology of Food Industry, 2016, (04): 223-227. DOI: 10.13386/j.issn1002-0306.2016.04.036

Effects of nitrogen and phosphorus on cell growth and lipid accumulation of tropic ocean microalgae strain Desmodesmus sp. WC08

  • In order to study the effects of nitrogen sources and the concentrations of nitrogen and phosphorus on the growth,lipid accumulation of a marine algae Desmodesmus sp. WC08. Four nitrogen sources such as sodium nitrite,sodium nitrate,urea and ammonium chloride and different concentrations of urea and phosphorus were investigated based on the BG11 media. The results showed that different nitrogen sources made little difference to Desmodesmus sp. WC08 except for ammonium chloride. In addition,the growth and lipid accumulation proved to be best when using urea as nitrogen source. Accordingly,the best growth and lipid accumulation which would be easily affected if the concentration of nitrogen was higher or lower,could be obtained at the optimal concentration of nitrogen(10 mmol/L). Likewise,the growth and lipid accumulation could be obtained at the optimal concentration of phosphorus(0.5 mmol/L). To be concluded,the nitrogen and phosphorus could be thoroughly absorbed by WC08 and the nutrients in the BG11 media could also be fully used at the their optimal concentrations.
  • loading

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return