ABSTRACT

Algae are one of the major contributors that provide solutions to some of the current global problems such as food insecurity, several ailments in humans, energy crisis etc. Specifically, they are considered as the best source for biofuels including biohydrogen which are generate through alternate pathway in photosynthesis. Recently, nanoparticles are in use for large scale production of bioproducts including biofuel generation. In the present investigation, both zinc oxide (ZnO) and ruthenium (Ru) nanoparticles were used along with tris-acetate-phosphate (TAP) medium to know their effect on algal growth and biomass accumulation. Both the compounds are useful as catalyst or electrocatalyst in generation of hydrogen besides many functions. Hence, the present screening was carried out under in vitro conditions using green algal species such as Chlamydomonas reinhardtii and Asterarcys quadricellulare. The improvement of growth and total chlorophyll contents were more in cultures grown in 10 ?g/L of nano- ZnO when compared to other concentrations in both the species. Higher doses of nano-ZnO reduced the algal growth and chlorophyll accumulation. In addition, augmented growth and total chlorophyll contents were noticed in C. reinhardtii cultures grown in 500 ?g/L of nano-Ru and for A. quadricellulare it was 1000 ?g/L. Present results may be helpful for biohydrogen generation from algal species and also for future research. Keywords: Chlamydomonas, Asterarcys, Nano-ZnO, Nano-Ru, Growth, Chlorophylls
Publication date: 15/06/2023

https://ijbpas.com/pdf/2023/June/MS_IJBPAS_2023_JUNE_SPCL_1009.pdf

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https://doi.org/10.31032/IJBPAS/2023/12.6.1009