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International Journal on Algae
SJR: 0.229 SNIP: 0.261 CiteScore™: 0.24

ISSN Print: 1521-9429
ISSN Online: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v20.i2.60
pages 175-180

Sustainable Bioethanol Production from a Marine Alga, Enteromorpha flexuosa (Wulfen) J. Agardh (Chlorophyta)

Th. E. Smith
Ave Maria University, Ave Maria, FL 31142, USA
J. Smith
Florida Virtual School, 2145 Metrocenter Blvd. #100, Orlando, FL 32835, USA


Sustainable feedstocks are solutions to growing energy demands. Enteromorpha flexuosa was collected (December 2017) at the Bayshore Live Oak Park, Charlotte County, FL, USA. Enteromorpha flexuosa was oven dried and fermented 544 g dry weight. We used α- and β-amylase to break down starch and dextrin. After distillation, 35 mL of distillate were obtained, which is 6.4% of dry matter. Ethanol was measured at 8.8% ν/ν and methanol at 0.05% ν/ν using gas chromatography. Ethanol was the most abundant at 99.2% and the rest was made up of methanol. Marine algae are good sources of biomass for biofuel production and should be explored further.