Enhancing biomass, hydrocarbon and biodiesel properties of green microalga Botryococcus braunii KMITL through gamma and UV radiation exposure.

ABSTRACT: This study investigated the effects of gamma (¹³⁷Cs, 0-250 Gy) and UV (UV-C, 0-12 h) radiation on growth and biodiesel properties of Botryococcus braunii KMITL. For gamma radiation, maximum biomass (1.37 ± 0.02 g L^-1) was achieved with 50 Gy, while a dose of 200 Gy resulted in the highest hydrocarbon content (51.84 ± 0.20%) and yield (0.66 ± 0.01 g L^-1). For UV radiation, a 9 h exposure produced the highest biomass (2.45 ± 0.05 g L^-1), hydrocarbon content (55.01 ± 1.22%), and yield (1.35 ± 0.04 g L^-1). Algae exposed to gamma radiation within the range of 0-150 Gy exhibited C16:0 as the dominant fatty acid methyl ester (FAME), similar to those exposed to UV radiation, while algae exposed to 200-250 Gy displayed C18:1n9t as the dominant

SUBMITTER: Jongput B 

PROVIDER: S-EPMC11494126 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature