Harald Fernández-Puratich

Prof. Harald Fernández-Puratich

Universidad Mayor

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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23 September 2021 in Fermentation
Verified
Journal Article
Open access
PDF file
DHDiógenes Hernández
Diógenes Hernández
Ricardo Rebolledo-LeivaRicardo Rebolledo-Leiva
Ricardo Rebolledo-Leiva
HFHarald Fernández-Puratich
Harald Fernández-Puratich
HQHéctor Quinteros-Lama
Héctor Quinteros-Lama
FCFernando Cataldo
Fernando Cataldo
CTClaudio Tenreiro
Claudio Tenreiro
Bioethanol production has increased in demand as a replacement for conventional fuels. This work studies the use of apple pomace, which corresponds to 45% (w/w) of dehydrated apple production, as a reliable and inexpensive source for bioethanol production. Additionally, the vinasse obtained from the process as a byproduct is analyzed. Apple pomace has important properties for energy purposes, with high soluble sugar (6%–8%), organic compounds and low protein content. The carbohydrates were consumed in 99.3% in 144 h at a temperature of 30 °C and in a yeast Saccharomyces cerevisiae (YSC) concentration of 0.10 g/L. The bioethanol purity produced, 99.5% (v/v), was quantified by gas chromatography and calorific value (23.21 MJ/kg). This high purity, which fulfills the EN 15376, ASTM D 4806 Standard, allows its use as a fuel and oil additive. Moreover, it can be stated that vinasse obtained from alcohol distillation is a compound that has physicochemical values like other vinasses. Finally, Chile, as the most important exporting country of dehydrated apples in the world, has great potential to take advantage of the use of this raw material for bioethanol and vinasse production.