Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Evento

Assessing the textile-dye decolorization potential of psychrophilic and psychrotolerant yeasts from 25 de mayo/King George island (Antarctica)

Pacheco, Mariana Soledad; Dominguez, Facundo GabrielIcon ; Torres, Mariela AnalíaIcon ; Martorell, María MarthaIcon ; Ruberto, Lucas Adolfo MauroIcon ; Mac Cormack, Walter Patricio; Martinez Alvarez, Lucas ManuelIcon ; Pajot, Hipolito FernandoIcon ; Nieto Peñalver, Carlos GabrielIcon
Tipo del evento: Reunión
Nombre del evento: XL Reunión Científica Anual de la Sociedad de Biología de Cuyo
Fecha del evento: 05/12/2022
Institución Organizadora: Sociedad de Biología de Cuyo;
Título del Libro: Libro de Resúmenes de la XL Reunión Científica Anual de la Sociedad de Biología de Cuyo
Editorial: Sociedad de Biología de Cuyo
Idioma: Español
Clasificación temática:
Ciencias Medioambientales

Resumen

Antarctic environments typically present low temperatures, high solar radiation and low nutrient availability, being one of the harshestenvironments on Earth. Psychrophilic and psychrotolerant yeasts from Antarctic soils and cryoconites have adapted to such conditions,being an interesting source of new enzymes with great biotechnological potential. This work intends to prove the textile dye decolorizingpotential of 139 yeasts isolated from soil and cryoconite samples from 25 de Mayo / King George Island, Antarctica. Isolates were cultivatedin YM, and NDM (Normal Decolorization Medium) media at 15, 20 and 25°C, and classified into psychrophilic and psychrotolerantaccording to their growth profiles. Textile dye decolorization was evaluated in the same two media, plus 200 mg/L of one of fourcommercially available reactive azo dyes: Vilmafix® Blue RR-BB (CI, Reactive Blue 221), Vilmafix® Red 7B-HE (CI, Reactive Red141), Vilmafix® Black B-V (CI, Reactive Black 5), or Vilmafix® Green RR-4B (CI, Reactive Green). Plates were incubated for 72 h at15, 20 or 25°C, depending on the yeast isolate. Dye decolorization haloes and colony dyeing were recorded daily and used to select themost promising isolates. Of 139 isolates, 34% were classified as psychrophilic (growing only at 15°C) while the remaining 66% wereclassified as psychrotolerant (growing at all the assayed temperatures), irrespective of the medium assayed. Forty-five isolates producehaloes in at least one of the tested dyes in NDM, while only 40 yeast produced haloes in YM. 15 isolates were selected for further studiesIsolates A075 and Y28D produced intense haloes without colony dyeing; isolates Y67, Y70 and Y75 produced intense haloes and get dyedonly at the edge of the colonies while the remaining ten isolates, A092, A099, A104, A105, A106, A107, Y6, Y59, Y73 and Y84, producedneat haloes with a significant colorization of the entire colonies. The obtained results prove the biotechnological potential of Antarcticyeasts, raising the possibility of designing more efficient dye-decolorizing methods at low temperatures.
Palabras clave: DECOLORATION , TEXTILE DYE , YEAST , ANTARCTICA
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 285.2Kb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/213140
URL: https://sbcuyo.org.ar/wp-content/uploads/2022/12/libro-resumenes-2022.pdf
Colecciones
Eventos(PROIMI)
Eventos de PLANTA PILOTO DE PROC.IND.MICROBIOLOGICOS (I)
Citación
Assessing the textile-dye decolorization potential of psychrophilic and psychrotolerant yeasts from 25 de mayo/King George island (Antarctica); XL Reunión Científica Anual de la Sociedad de Biología de Cuyo; Mendoza; Argentina; 2022; 8-8
Compartir

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES