Isolation, identification and investigation of the effects of artificial media and commercial organic fertilizers on the growth of microalgae Chlorella in Can Gio

Abstract

    Cultivation efficiency is directly influenced by culture medium, and, medium makes up of 50% total production cost. Our study investigated commonly used artifical medium with organic supplment from commercial organic fertilizer which can be beneficial for Chlorella biomass growth, which was obtained and isolated from Can Gio. In this study, we cultivated Chlorella on 4 medium (HAMGM, M-8, BG-11, and LC Oligo), amongst which the HAMGM medium yielded highest dried biomass (4.56g/L - day 14) and LC Oligo yielded lowest (2.29g/L - day 14). Supplement (at 1.5g/L) from commercial organic fertilizer such as vermicompost (ViF-Maxx), oil cake fertilizer (ViF-Mix), and foilar fertilizer (Terra Sorb 4 Root) all improved Chlorella growth, amongst which vermicompost was the most effective in increasing Chlorella growth (6,86g/L). The HAMGM medium with vermicompost as supplement was shown to be effective in improvement of Chlorella sp. biomass productivity.