Resultados de pesquisa

Due to their critical impact on public health, the detection of foodborne pathogens in food and water is an important issue for both, the food industry and control authorities. Fast and reliable analytical methods are needed in order to ensure the health of consumers, to easily determine whether a food product has been subjected to cross-contamination, and, simultaneously, to identify how and when this cross-contamination occurred in order to establish the proper corrective actions. Recent developments in nanotechnology are greatly impacting the advancement of some analytical techniques, including foodborne pathogen detection. Herein, the advantages and the recent applications of nanoparticles (NPs) in foodborne pathogen detection are reviewed. The most frequently used NPs in this context (gold nanoparticles, quantum dots, and mag...

Yeasts are an attractive group of lower eukaryotic microorganisms, some of which are used in several industrial processes that include brewing, baking and the production of a variety of biochemical compounds. More recently, yeasts have been developed as host organisms for the production of foreign (heterologous) proteins. Saccharomyces cerevisiae has usually been the yeast of choice, but an increasing number of alternative non-Saccharomyces yeasts has now become accessible for modern molecular genetics techniques. Some of them exhibit certain favourable traits such as high-level secretion or very strong and tightly regulated promoters, offering significant advantages over traditional bakers' yeast. In the present work, the current status of Kluyveromyces lactis, Yarrowia lipolytica, Hansenula polymorpha and Pichia pastoris (the best-kn...