Scholarlink

Abstract <p>The effect of illumination (with photosynthetic photon flux densities (PPFD) of 10, 30, 50, and 70&#xa0;μmol/(m<sup>2</sup> s)) on the microalga <i>Tisochrysis lutea</i> (Haptophyta) in a 1.8-L panel bioreactor was studied using a 5 Lux LED flat panel (Infors HT, Switzerland) for 14 days. It was found that the most intensive growth of the microalgal population occurred at 30 and 50 μmol/(m<sup>2</sup> s). At 10 μmol/(m<sup>2</sup> s), the population growth was completely inhibited. Regardless of the PPFD level, cells larger than 4 μm dominated the population after 7 days. The carotenoid content at PPFD of 10 and 70 μmol/(m<sup>2</sup> s) was the highest on day 7. The chlorophyll <i>a</i>-to-carotenoid ratio decreased by the end of the experiment under all studied conditions. The highest level of neutral lipids in the cells was recorded at 10 μmol/(m<sup>2</sup> s).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Population Growth of the Microalga Tisochrysis lutea (Haptophyta) and the Contents of Carotenoids and Neutral Lipids at Different Illumination Levels in a Panel Bioreactor

  • 期刊论文

  • 发表日期：

    2025年2月1日

查看全文
  • Zh. V. Markina,
  • A. A. Zinov

摘要

Abstract

The effect of illumination (with photosynthetic photon flux densities (PPFD) of 10, 30, 50, and 70 μmol/(m2 s)) on the microalga Tisochrysis lutea (Haptophyta) in a 1.8-L panel bioreactor was studied using a 5 Lux LED flat panel (Infors HT, Switzerland) for 14 days. It was found that the most intensive growth of the microalgal population occurred at 30 and 50 μmol/(m2 s). At 10 μmol/(m2 s), the population growth was completely inhibited. Regardless of the PPFD level, cells larger than 4 μm dominated the population after 7 days. The carotenoid content at PPFD of 10 and 70 μmol/(m2 s) was the highest on day 7. The chlorophyll a-to-carotenoid ratio decreased by the end of the experiment under all studied conditions. The highest level of neutral lipids in the cells was recorded at 10 μmol/(m2 s).