Yeast Microflora Isolated From Brazilian Cassava Roots: Taxonomical Classification Based on Molecular Identification

Ferreira, Nelson Rosa; Belloch, Carmela; Querol, Amparo; Manzanares, Paloma; Vallez, Salvador; Santos, Alberdan S.

doi:10.1007/s00284-009-9539-z

Cited by 26 publications

(16 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Finally, regarding Profile X, two of the total isolates were identified as R. nothofagi. In the case of yeasts included in Groups III, VIII and X, it would have been useful to introduce more restriction enzymes besides CfoI, HaeIII and HinfI to increase the discriminatory capacity of the ITS1-5.8S RNA-ITS2 PCR-RFLP method, as suggested in other works (Esteve-Zarzoso et al, 1999;Ferreira et al, 2010). This is especially important in the studying of the ecosystems that have not yet been researched.…”

Section: Resultsmentioning

confidence: 95%

Yeast diversity in the Mediterranean strawberry tree (Arbutus unedo L.) fruits' fermentations

Santo

Galego

Gonçalves

et al. 2012

Food Research International

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 95%

Yeast diversity in the Mediterranean strawberry tree (Arbutus unedo L.) fruits' fermentations

Santo

Galego

Gonçalves

et al. 2012

Food Research International

View full text Add to dashboard Cite

“…Culture‐dependent methods based on molecular biology techniques have been developed to carry out rapid studies of microbial population dynamics . In the present study, after a preliminary assessment of a range of S .…”

Section: Introductionmentioning

confidence: 99%

Dominance and influence of selectedSaccharomyces cerevisiaestrains on the analytical profile of craft beer refermentation

2014

View full text Add to dashboard Cite

This study investigated the influence of Saccharomyces cerevisiae strains inoculated at the refermentation phase on the analytical profile of craft beer. After preliminary screening of 33 S. cerevisiae strains, four were selected and used in bottle refermentation trials. To attribute the flavour profile of the refermented beers to the inoculated strains, molecular characterization was carried out using a mini-satellite protocol of amplification with inter-δ primers. Fingerprinting analysis of 500 isolates showed that all of the inoculated strains used in the bottle refermentation dominated the process. The main analytical characters across the bottle refermentation trials were similar, while there were distinctive and significant variations in the volatile compounds. In particular, when compared with the starter strain used as control, the bottle refermentation trials using the DBVPG 2170, DBVPG 2187 and L951 S. cerevisiae strains showed significantly higher levels of the volatile compounds that are responsible for fruity and flowery aromas (i.e. isoamyl acetate, ethyl octanoate, ethyl dodecanoate phenyl ethyl acetate, β-phenyl ethanol). This study indicates that the proper refermentation process results in the dominance of the selected starter strain, which produces fermentation compounds that show a specific analytical profile and give the craft beer its distinctive bioflavour.

show abstract

“…Thirty blue colonies of each sample were randomly picked and the identity of isolates with the inoculant strain was confirmed by restriction fragment length polymorphism (RFLP) analysis of the 16S‐23S rRNA intergenic spacer region . For yeast detection, 30 colonies of each sample in one plate during total yeast enumeration were picked and the identity of isolates with the inoculant strain was confirmed by RFLP analysis of the 5.8S rRNA gene …”

Section: Methodsmentioning

confidence: 99%

Enhanced bioremediation of oily sludge using co‐culture of specific bacterial and yeast strains

Xin-guo

Liu

2014

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND Considerable volumes of petrochemical oily sludge can be generated from oil production and processing activities. Total petroleum hydrocarbons (TPH) contained in oily sludge are detrimental to human health and the environment. Thus, oily sludge is classified as a priority environmental pollutant by the US Environmental Protection Agency and it must be treated properly before discharge into the environment. RESULTS In this study, a functional microbial consortium consisting of Bacillus subtilis, Bacillus megaterium, Achromobacter xylosoxidans, Pseudomonas fluorescens, Candida tropicalis and Rhodotorula dairenensis, isolated from petroleum‐contaminated soil, was applied for bioremediation of petrochemical oily sludge in a shake flask and oily sludge microcosm study. These strains utilized the oily sludge as sole source of carbon and energy. The oily sludge contained 21.5% (w/w, dry weight basis) of total petrol hydrocarbons (TPH). Results showed that the microbial consortium exhibited an excellent oily sludge degradation capacity, reducing 92.5% of aliphatics, 79.3% of aromatics, 48.6% of NSO‐containing compounds, 31.8% of asphaltenes and 80.6% of TPH, by the end of the 1‐year microcosm experiment. In contrast, biodegradation rates of these fractions were 83.3%, 17.5%, 8.4%, 4.7% and 56.1%, respectively, in the non‐inoculated treatment. These strains survived well and adapted to the oil sludge environment throughout the incubation period. Dehydrogenase and polyphenoloxidase activity of the oily sludge was remarkably promoted by inoculation of the microbial consortium. CONCLUSION The results indicated that the microbial consortium has the potential to be used in bioremediation of petrochemical oily sludge polluted environments. © 2014 Society of Chemical Industry

show abstract

Yeast Microflora Isolated From Brazilian Cassava Roots: Taxonomical Classification Based on Molecular Identification

Cited by 26 publications

References 17 publications

Yeast diversity in the Mediterranean strawberry tree (Arbutus unedo L.) fruits' fermentations

Yeast diversity in the Mediterranean strawberry tree (Arbutus unedo L.) fruits' fermentations

Dominance and influence of selectedSaccharomyces cerevisiaestrains on the analytical profile of craft beer refermentation

Enhanced bioremediation of oily sludge using co‐culture of specific bacterial and yeast strains

Contact Info

Product

Resources

About