Abstract

The purpose of this paper is to determine the influence of color temperature of Light Emitting Diode (LED) diodes and illumination intensity on the content of photosynthetic pigments of chlorophyll a, chlorophyll b and carotenoids in Chlorella vulgaris algae cells. Choosing the right color temperature and intensity of illumination can favorably affect the growth of algae. In particular, it can contribute to the efficiency of the photosynthesis process and the amount of produced biomass from Chlorella vulgaris algae. In the spectrophotometric studies, the highest content of chlorophyll a, chlorophyll b and carotenoids was found in cultures illuminated with very cold white light (8500 K) with an intensity of 500 μmol/m2s. The highest measured content of chlorophyll a (Chl a) pigments was 48.29 mg/L, Chl b pigment was 23.25 mg/L and carotenoids pigment was 12.65 mg/L; the smallest content of pigments for Chl a (11.48 mg/L), Chl b (4.69 mg/L) and carotenoids (3.03 mg/L) was found in the sample illuminated with warm white light (3200 K) with an intensity of 50 μmol/m2s. The highest amount of dry organic matter amounting to 2.0 g/L was found in a sample illuminated with warm white light (3200 K) with an intensity of 250 μmol/m2s, then 1.91 g dry organic mass (DOM)/L for very cold white light with an intensity of 250 μmol/m2s, and 1.48 g DOM/L for very cold white light with an intensity of 50 μmol/m2s. The obtained results show that a higher content of photosynthetic pigments does not directly affect the increase of the amount of dry organic matter.

Highlights

  • Diode (LED) diodes and illumination intensity on the content of photosynthetic pigments of chlorophyll a, chlorophyll b and carotenoids in Chlorella vulgaris algae cells

  • The obtained results show that a higher content of photosynthetic pigments does not directly affect the increase of the amount of dry organic matter

  • The highest amount of dry organic matter (DOM) amounting to 2.0 g/L was found in a sample illuminated with warm white light (3200 K) with an intensity of 250 μmol/m2s, 1.91 g dry organic mass (DOM)/L for very cold white light with an intensity of 250 μmol/m2s, and 1.48 g DOM/L for very cold white light with an intensity of 50 μmol/m2s

Read more

Summary

Introduction

Diode (LED) diodes and illumination intensity on the content of photosynthetic pigments of chlorophyll a, chlorophyll b and carotenoids in Chlorella vulgaris algae cells. The photosynthetic pigments transform the energy of light into the energy of chemical bonds, from which algae synthesize organic compounds (saccharides) in the process of photosynthesis from simple inorganic compounds. Choosing the right color temperature and intensity of illumination can favorably affect the growth of algae. It can contribute to the efficiency of the photosynthesis process and the amount of produced biomass from Chlorella vulgaris algae.

Objectives
Methods
Results
Conclusion

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.