Publications by authors named "Anne C D Oliveira"
Article Synopsis
- Microalgae, specifically Tetradesmus obliquus, are being explored as a sustainable source for biofuel production due to their ability to generate high-energy compounds, with this study focusing on oil extraction and purification methods.
- The process involved cultivating the microalgae using biodigested swine waste, followed by oil extraction with different solvent combinations, discovering that a blend of hexane and ethanol yielded better results than pure hexane.
- The analysis showed that while the extracted hydrocarbons have a calorific value similar to petroleum diesel, they also contained higher sulfur levels, and different extraction methods influenced both yield and cost, with a 70% hexane and 30% ethanol mix proving most economical.
Extracellular lipases from the endophytic yeast Candida guilliermondii isolated from castor leaves (Ricinus communis L.) were produced using low-cost raw materials such as agro-industrial residues and applying them in the esterification of oleic acid for evaluating their potential use in biodiesel production. After partial purification using ammonium sulfate, the enzyme was characterized and presented higher activity (26.
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