Eko Agus Suyono SSi., MAppSc is a researcher from the
University of Gadjah Mada (UGM) has managed to find the latest alternative
energy sources, this source of energy is produced from the processing of
microalgae to be processed into bioethanol as one solution to the depletion of
energy produced from fossil.
Microalgae becomes Eko
selection in this study because of the presence of microalgae quite abundant,
considering that two-thirds of Indonesia is the sea. Thus, processing
microalgae into bioethanol can be used as part of efforts to manage marine
resources of Indonesia that has not been used optimally.
"Biodiversity of
microalgae is enormous to be developed into bioenergy, one is Tetraselmis
sp," said Eko in Yogyakarta, Sunday, December 14, 2014.
Based on the results of his
research, the potential of bio-ethanol produced from biomass hydrolysis
Tetraselmis sp. Ancol strain and fermentation using Saccharomyces cerevisiae
(strain Ethanol Red) of 0.36 g ethanol / g biomass after 48 hours of
incubation. These results are similar to the results of bioethanol highest ever
reported in the publication of research conducted in Korea,
"Tetraselmis sp strain
Ancol is a potential source of carbohydrates for the production of
bioethanol," said Eko.
From the research, Eko
continues, to this day there are at least six species of Tetraselmis sp. which
had been isolated from Indonesian waters. All of these species has not analyzed
its potential as a producer of bioethanol. So that the necessary research to be
developed as a source of bioethanol.
While the results of phylogenetic
analysis, we obtained two clades of Tetraselmis strains isolated from Indonesia
and outside Indonesia. The first clade consisting of strains Ancol, Cilegon,
Manado, Vancouver Island (Canada), and Northumberland (UK). The second clade
consisting of strains California (USA).
The content of carbohydrates
in biomass Tetraselmis Ancol sp strain can be improved by adjusting the ratio
of Nitrogen: Phosphorus is 37: 1 under irradiation 12 hours of light and 12
hours dark with carbohydrate content per liter and highest carbohydrate per
cell Tetraselmis sp. Ancol strain respectively 0.33 g / L and 158 pg / cell.
It said Eko Agus Suyono,
microalgae are organisms that can be used as raw materials for biofuels. The
use of microalgae as a feedstock for biofuels is relatively not compete with
the food-producing crops productive and hardly reduces the area of land for
food crops.
"These organisms have a
high photosynthetic efficiency and have a shorter growth of other crops,"
he said.
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