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

Rame Rame (Balai Besar Teknologi Pencegahan Pencemaran Industri)
Nilawati Nilawati (Balai Besar Teknologi Pencegahan Pencemaran Industri)
Silvy Djayanti (Balai Besar Teknologi Pencegahan Pencemaran Industri)
Novarina Irnaning Handayani (Balai Besar Teknologi Pencegahan Pencemaran Industri)
Agus Purwanto (Balai Besar Teknologi Pencegahan Pencemaran Industri)
Lisa Ruliaty (BBPBAP, Jepara)
Ganang Dwi Harjanto (Neoalgae Indonesia Makmur)

Jurnal Riset Teknologi Pencegahan Pencemaran Industri
Vol. 9 No. 2 (2018)

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%.