Publications by authors named "Ernani S Sant'Anna"
Article Synopsis
- This study explored growing the marine algae Nannochloropsis gaditana using a desalination concentrate (75% DC) under different growth conditions and light schedules.
- N. gaditana reached its highest biomass (1.25gL) in mixotrophic conditions with a 16-hour light/8-hour dark cycle, producing varying protein levels based on light patterns.
- The research indicates that adjusting light exposure and nutrient conditions can significantly increase the lipid content in N. gaditana, which may be beneficial for biofuel production or other applications.
Article Synopsis
- - The study investigated the growth of the marine microalga Nannochloropsis gaditana using desalination concentrate (DC) to determine how different DC concentrations affect biomass growth, lipid production, and fatty acid composition.
- - The optimal DC concentration for achieving maximum biomass (0.96 g/L) and lipid content (12.6%) was found to be 75%.
- - Throughout three cultivation cycles using the same DC medium, it was noted that higher biomass productivity linked directly to increased lipid productivity, with palmitic acid being the predominant fatty acid present in the algal cells, which also showed higher saturated fatty acid content with elevated DC levels.
Viability of Staphylococcus xylosus isolated from artisanal sausages for application as starter cultures in meat products Viability of Staphylococcus xylosus strains AD1 and U5 isolated from natural fermented sausages was investigated as starter cultures in fermented sausages produced in the South Region of Brazil. The study demonstrated that the Staphylococcus xylosus strains AD1 and U5 showed significant growth during fermentation, stability over freeze-dried process, negative reaction for staphylococcal enterotoxins and viability for using as a single-strain culture or associated with lactic acid bacteria for production of fermented sausages.
View Article and Find Full Text PDFArthrospira (Spirulina) platensis was cultivated in laboratory under controlled conditions (30°C, photoperiod of 12 hours light/dark provided by fluorescent lamps at a light intensity of 140 μmol photons.m(-2).s(-1) and constant bubbling air) in three different culture media: (1) Paoletti medium (control), (2) Paoletti supplemented with 1 g.
View Article and Find Full Text PDFBetween April and October 2002, thirty fortnightly collections of oysters (Crassostrea rhizophorea) from a natural oyster bed at the Cocó River estuary in the Sabiaguaba region (Fortaleza, Ceará, Brazil) were carried out, aiming to isolate Aeromonas spp. strains. Oyster samples were submitted to the direct plating (DP) and the presence/absence (P/A) methods.
View Article and Find Full Text PDFThe viability of Listeria monocytogenes was monitored on frankfurters containing added potassium lactate that were obtained directly from a commercial manufacturer. Eight links (ca. 56 g each) were transferred aseptically from the original vacuum-sealed bulk packages into nylon-polyethylene bags.
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