DOAJ Open Access 2020

Enhanced Algal Photosynthetic Photon Efficiency by Pulsed Light

Yair Zarmi Jeffrey M. Gordon Amit Mahulkar Avinash R. Khopkar Smita D. Patil +4 lainnya

Abstrak

Summary: We present experimental results demonstrating that, relative to continuous illumination, an increase of a factor of 3–10 in the photon efficiency of algal photosynthesis is attainable via the judicious application of pulsed light for light intensities of practical interest (e.g., average-to-peak solar irradiance). We also propose a simple model that can account for all the measurements. The model (1) reflects the essential rate-limiting elements in bioproductivity, (2) incorporates the impact of photon arrival-time statistics, and (3) accounts for how the enhancement in photon efficiency depends on the timescales of light pulsing and photon flux density. The key is avoiding “clogging” of the photosynthetic pathway by properly timing the light-dark cycles experienced by algal cells. We show how this can be realized with pulsed light sources, or by producing pulsed-light effects from continuous illumination via turbulent mixing in dense algal cultures in thin photobioreactors.

Topik & Kata Kunci

Science

Penulis (9)

Yair Zarmi

Jeffrey M. Gordon

Amit Mahulkar

Avinash R. Khopkar

Smita D. Patil

Arun Banerjee

Badari Gade Reddy

Thomas P. Griffin

Ajit Sapre

Format Sitasi

APA MLA BibTeX

Zarmi, Y., Gordon, J.M., Mahulkar, A., Khopkar, A.R., Patil, S.D., Banerjee, A. et al. (2020). Enhanced Algal Photosynthetic Photon Efficiency by Pulsed Light. https://doi.org/10.1016/j.isci.2020.101115

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1016/j.isci.2020.101115

Informasi Jurnal

Tahun Terbit: 2020
Sumber Database: DOAJ
DOI: 10.1016/j.isci.2020.101115
Akses: Open Access ✓