Efficient Cell-Wall Disruption of Microalgae Chlorella Vulgaris in water by catalytic ozonation over Microporous Carbon-Supported Titanium Oxide

Rame Rame, Nilawati Nilawati, Silvy Silvy Djayanti, Novarina Irnaning Handayani, Agus Purwanto, Lisa Ruliaty, Ganang Dwi Harjanto


This study investigated several parameters for cell-wall disruption from microalgae Chlorella vulgaris during catalytic ozonation over microporous carbon-supported titanium oxide, including flow ozone, catalytic time, and reactor capacity. At the same time, the cell-wall disruption yield and an active compound yield such as chlorophyll and carotenoid were evaluated for each pretreatment. The required delivered flow ozone to achieve 76,47% cell-wall disruption of Chlorella vulgaris was 1 minute at 4 LPM, which produced chlorophyll 56,75% and carotenoid 89,09%. Carbon-supported titanium oxide reduces the required O3 dose and catalytic time for cell-wall disruption; however, it limited chlorophyll yield did not exceed 75,67%. Pretreatment with 1 minute at 1 LPM in 2 liters produced carotenoid yield by approximately 98,18%, though it reduced chlorophyll to 59,45%. 


cell-wall disruption, chlorella, catalytic ozonation

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DOI: http://dx.doi.org/10.21771/jrtppi.2018.v9.no2.p30-36


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