Publications by authors named "Juliana Moura de Luna"

The present study aimed to produce a biosurfactant from yeast cultivated in a low-cost medium made of sugar-cane molasses (5%), frying oil waste (5%), and corn steep liquor (5%). Initially, the production at the flask-scale was investigated and then scaled up in bioreactors to 1.2, 3.

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Article Synopsis
  • Biosurfactants, which are multifunctional and amphipathic molecules, show significant potential in industries like petroleum, particularly for hydrocarbon removal from oily waste.
  • A commercial biosurfactant derived from *Pseudomonas cepacia CCT6659* was successfully produced in a 50-L bioreactor using industrial waste, achieving a concentration of 40.5 g/L and significantly reducing surface tension.
  • The formulated biosurfactant exhibited excellent stability across various pH levels, temperatures, and salinity, demonstrating its economic viability for large-scale applications at a cost-effective price compared to existing products, effectively removing up to 100% of oil in practical applications like thermoelectric plants.
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Microbial biosurfactants with high ability to reduce surface and interfacial surface tension and conferring important properties such as emulsification, detergency, solubilization, lubrication and phase dispersion have a wide range of potential applications in many industries. Significant interest in these compounds has been demonstrated by environmental, bioremediation, oil, petroleum, food, beverage, cosmetic and pharmaceutical industries attracted by their low toxicity, biodegradability and sustainable production technologies. Despite having significant potentials associated with emulsion formation, stabilization, antiadhesive and antimicrobial activities, significantly less output and applications have been reported in food industry.

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