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<p>For biofuels and nutraceuticals, the green microalga Haematococcus pluvialis (Chlorophyceae) is a prospective source of biomass and lipids. This study examined how biomass production and lipid accumulation were affected by temperature (10&#xa0;°C, 20&#xa0;°C, and 30&#xa0;°C) and potassium nitrate (KNO₃) concentrations (0.41&#xa0;g/L, 0.31&#xa0;g/L, 0.21&#xa0;g/L, 0.10&#xa0;g/L, and 0). The findings showed that the largest biomass (0.665 ± 0.200&#xa0;g/L) was produced at a potassium nitrate concentration of 0.21&#xa0;g/L at 20&#xa0;°C, whereas the highest lipid content (46.31 ± 0.026% dry weight) was produced at a temperature without nitrate. Notably, a balanced result was obtained with a modest nitrate content (0.10&#xa0;g/L) at 20&#xa0;°C, yielding significant biomass (0.560 ± 0.136&#xa0;g/L) and lipids (40.30 ± 0.012% dry weight). These results highlight how crucial it is to optimize cultivation settings in order to increase H. pluvialis's dual productivity, offering important new information for its industrial-scale use. By adjusting growing conditions, this research helps meet the need for renewable resources worldwide by promoting the production of high-value bioproducts and sustainable, commercially viable algae-based biofuels.</p>

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Enhancing biomass and lipid productivities of Haematococcus pluvialis for industrial raw materials products

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月18日

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  • Övgü Gencer,
  • Gamze Turan

摘要

For biofuels and nutraceuticals, the green microalga Haematococcus pluvialis (Chlorophyceae) is a prospective source of biomass and lipids. This study examined how biomass production and lipid accumulation were affected by temperature (10 °C, 20 °C, and 30 °C) and potassium nitrate (KNO₃) concentrations (0.41 g/L, 0.31 g/L, 0.21 g/L, 0.10 g/L, and 0). The findings showed that the largest biomass (0.665 ± 0.200 g/L) was produced at a potassium nitrate concentration of 0.21 g/L at 20 °C, whereas the highest lipid content (46.31 ± 0.026% dry weight) was produced at a temperature without nitrate. Notably, a balanced result was obtained with a modest nitrate content (0.10 g/L) at 20 °C, yielding significant biomass (0.560 ± 0.136 g/L) and lipids (40.30 ± 0.012% dry weight). These results highlight how crucial it is to optimize cultivation settings in order to increase H. pluvialis's dual productivity, offering important new information for its industrial-scale use. By adjusting growing conditions, this research helps meet the need for renewable resources worldwide by promoting the production of high-value bioproducts and sustainable, commercially viable algae-based biofuels.