Saccharomyces cerevisiae, occurrence

Occurrence prokaryotes Drosophila ssp. mammalian tissues pro- and eukaryotes microbes, plants, mammalian tissues prokaryotes Saccharomyces cerevisiae (ADH TV)... 

Fig. 6. Occurrence of the CXCX(4 5) CXC consensus motif. CopY, cop operon repressor protein from Enterococcus hirae Mad, transcription factor for the Ctrl copper transporter of Saccharomyces cerevisiae AMTl, transcription factor for metal-lothionein from Candida albicans ACEl, transcription factor for metallothionein from Sa. cerevisiae Grisea, MACl orthologue of Podospora anserina MT-2 p-domain, N-terminal domain of human metallothionein-2.

Similarly to their antibacterial activity, resorcinolic lipids exhibit fungistatic properties. However, experiments indicate that resorcinolic lipids inhibit the growth of Trichophyton mentagrophytes and Saccharomyces cerevisiae to a lower degree than observed for bacteria. No activity was shown against Candida albicans and Asperigullus niger [256]. The occurrence of 5-n-(heptadec-12-enyl) and 5-n-... 

This chapter is divided into five sections including an introdnction (Section 17.1), impact of yeast on beer appearance (Section 17.2), impact of yeast on beer flavour (Section 17.3), impact of bacteria on beer appearance and flavour (Section 17.4), and future trends (Section 17.5). The emphasis is on the impact of yeast on beer appearance and flavour because more information is available on this topic. Although most of the discussions are centred on the impact of main brewing yeast strains (Saccharomyces cerevisiae and Saccharomycespastorianus) on barley malt-based beers (ale and lager, respectively) (Lodolo, Kock, Axcell, Brooks, 2008 Stewart, Hill, Russell, 2013), references are also made to other yeasts involved in brewing specialty beers derived from both barley malt and other cereal malts. Lactic acid bacteria (LAB) are the focus of discussion with regard to bacterial impact on beer appearance and flavour due to their relatively common occurrences in beers (Menz et al., 2010 Sakamoto Konings, 2003 Suzuki, 2011 Suzuki, Asano, lijima, Kitamoto, 2008). 

Arnold (51) partially purified such an enzyme from cell-free extracts of bakers yeast Matile et al, (45) and Cortat et al. (44) demonstrated the existence of glucanase-containing vesicles within the cytoplasm of Sac-charomyces cerevisiae. These vesicles contained exo- as well as endo-glucanases but the enzymes were not studied in detail. Fleet and Phaff (47) obtained qualitative evidence for the occurrence of endo-/ -( 1 — 3) glucanases in the cell walls of Saccharomyces rosei, Kluyveromyces fragilis, Hansenula anomala, Pichia pastoris, and Candida utilis. K. fragilis and H. anomala contained only exo-glucanase in cell extracts (38). 

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