Browsing by Autor "María Teresa Álvarez Aliaga"
Now showing 1 - 8 of 8
- Results Per Page
- Sort Options
Item type: Item , A novel glycoside hydrolase 43-like enzyme from <i>Clostridium boliviensis</i> is an endo-xylanase and a candidate for xylooligosaccharide production from different xylan substrates(American Society for Microbiology, 2024) Daniel Martín Salas-Veizaga; Leonardo Roberto Rocabado-Villegas; Javier A. Linares‐Pastén; Elísabet Eik Guðmundsdóttir; Guðmundur Ó. Hreggviðsson; María Teresa Álvarez Aliaga; Patrick Adlercreutz; Eva Nordberg KarlssonThe genome of <i>Clostridium boliviensis</i> strain E-1 encodes a number of hypothetical enzymes, annotated as glycoside hydrolase-like but not classified in the Carbohydrate Active Enzyme Database (CAZy). A novel thermostable GH43-like enzyme is here characterized as an endo-β-xylanase of interest in the production of prebiotic xylooligosaccharides (XOs) from different xylan sources. <i>CbE1</i>Xyn43-l is a two-domain enzyme composed of a catalytic GH43-l domain and a CBM6 domain, producing xylotriose as main XO product. The enzyme has homologs in many related <i>Clostridium</i> strains which may indicate a similar function and be a previously unknown type of endo-xylanase in this evolutionary lineage of microorganisms.Item type: Item , Additional file 1 of Systematic review and meta-analysis: the efficiency of bacteriophages previously patented against pathogenic bacteria on food(Figshare (United Kingdom), 2023) Danitza Xiomara Romero-Calle; Vinícius Pereira de Santana; Raquel Guimarães Benevides; María Teresa Álvarez Aliaga; Craig Billington; Aristóteles Goés‐NetoAdditional file 1: Table 1s.Item type: Item , Detection of luxS gene expression under stressing factors for biofilm formation by Propionibacterium acidipropionici and Propionibacterium freudenreichii(2015) Danitza Xiomara Romero; Oscar Víctor Cárdenas Alegría; Víctor Hugo Cavero Olguin; María Teresa Álvarez AliagaGene expression constitutes an important role in cellular communication, setting mechanisms for biofilm formation. Genes can be used as molecular markers to monitor viability, stability and maintenance of biofilm eg. in biofilm reactors, bioremediation and biotransformation frequently under stressing conditions to enhance or limit the biofilm formation. In the present study, no pathogenic microorganisms of industrial interest were used. Propionibacterium freudenreichiisubsp. shermanii DSM 4902T and P. acidipropionici DSM 4900Tstrains cannot produce biofilm in culture conditions previously reported. In this regard, chemical culture conditions were modified to stimulate biofilm formation in both strains and determine that under stressing conditions such as 0.6 M NaCl, 1.8 M glucose and 10 gL-1 yeast extract both Propionibacterium produce biofilm. Finally, luxS expression was identified in biofilm of both strains by modified fluorescent in situ hybridization expression (FISH expression).Item type: Item , DETERIORO CAUSADO POR MICROORGANISMOS EN TEXTIL ARQUEOLÓGICO Y LIENZOS(2012) Nelson Estrada; Guido M. Valverde Garnica; María Teresa Álvarez Aliaga; Enrique Terrazas Siles; Alberto Giménez TurbaIn this paper we identified the organisms that cause deterioration of paintings and a textile fragment from the colonial era, provided by the Ministry of Cul...Item type: Item , Microcultivation of anaerobic bacteria single cells entrapped in alginate microbeads(Springer Science+Business Media, 2012) Rosa Aragão Börner; María Teresa Álvarez Aliaga; Bo MattìassonItem type: Item , Saccharomyces Cerevisiae como biocatalizador en celdas de combustible microbianas con ferricianuro de potasio(2018) Bryan Alejandro Vargas Arce; María Teresa Álvarez Aliaga; Flavio Ghezzi; Armando R Ticona-BustillosItem type: Item , Systematic review and meta-analysis: the efficiency of bacteriophages previously patented against pathogenic bacteria on food(BioMed Central, 2023) Danitza Xiomara Romero-Calle; Vinícius Pereira de Santana; Raquel Guimarães Benevides; María Teresa Álvarez Aliaga; Craig Billington; Aristóteles Goés‐NetoItem type: Item , Técnica Headspace asociada a cromatografía de gases para la identificación y cuantificación de ácidos grasos volátiles producidos tras la digestión anaeróbica de paja de cebada Hordeum vulgare(2016) Ricardo Enrique Grados Torrez; María Teresa Álvarez Aliaga