Impact of Cell Size, Light Wavelengths, and Intensities on Growth, Oxygen Production, and Consumption Rates of Chromochloris zofingiensis and Haematococcus lacustris. DOI

Chigozie Ugwu,

Hashiguchi Ayumi,

Nagare Hideaki

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Chromochloris zofingiensis (C. zofingiensis) and Haematococcus lacustris (H. lacustris) were cultivated in an autotrophic conditions. The algae cell sizes measured to determine their size light absorption for oxygen production consumption rates. Methodologies developed measure the rates of both species using different wavelengths (blue red) intensities (20–80 µmol m–2 s–1). H. lacustris, with larger cells, potentially exhibited slower growth (0.09 d–1) at 20 s–1 blue-light high O2 red-light, which resulted increase pH (11.8) 80 red-light. Conversely, C. was distinguished by smaller, non-motile streamlined production, transport, responded favorably changes intensities, a higher specific rate 0.19 d–1. Both had environment due its short wavelength. While environment, optimized photosynthetic quotient (2.3) 60 s–1. This study underscores biotechnological potential as source high-value products.

Language: Английский

Impact of Cell Size, Light Wavelengths, and Intensities on Growth, Oxygen Production, and Consumption Rates of Chromochloris zofingiensis and Haematococcus lacustris. DOI

Chigozie Ugwu,

Hashiguchi Ayumi,

Nagare Hideaki

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Chromochloris zofingiensis (C. zofingiensis) and Haematococcus lacustris (H. lacustris) were cultivated in an autotrophic conditions. The algae cell sizes measured to determine their size light absorption for oxygen production consumption rates. Methodologies developed measure the rates of both species using different wavelengths (blue red) intensities (20–80 µmol m–2 s–1). H. lacustris, with larger cells, potentially exhibited slower growth (0.09 d–1) at 20 s–1 blue-light high O2 red-light, which resulted increase pH (11.8) 80 red-light. Conversely, C. was distinguished by smaller, non-motile streamlined production, transport, responded favorably changes intensities, a higher specific rate 0.19 d–1. Both had environment due its short wavelength. While environment, optimized photosynthetic quotient (2.3) 60 s–1. This study underscores biotechnological potential as source high-value products.

Language: Английский

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