Article In: cienciavitae

Assessment of β-carotene content, cell physiology and morphology of the yellow yeast $\textit{Rhodotorula glutinis}$ mutant 400A15 using flow cytometry

Journal of Industrial Microbiology and Biotechnology

Cutzu, R.; Clemente, A.; Lopes Da Silva, T.2013Oxford University Press (OUP)

Key information

Authors:

Cutzu, R.; Clemente, A.; Reis, A.; Nobre, B. (Maria Beatriz Pinto Pereira Palma Nobre); Mannazzu, I.; Roseiro, J.; Lopes Da Silva, T.

Published in

08/01/2013

Abstract

<jats:title>Abstract</jats:title> <jats:p>Flow cytometry was used to assess β-carotene content, cell membrane permeability, cell size and granularity in Rhodotorula glutinis mutant 400A15 grown under different oxygen transfer coefficients (k  L  a) and carbon to nitrogen ratios (C/N). A Doehlert distribution was used in order to select the best conditions that induced the highest carotenoids production. The highest β-carotene content (0.79 mg g−1 DCW) at the lowest k  L  a and C/N (5 × 10−3 s−1 and 11.3 respectively). Under these conditions, the biomass concentration attained 18.60 g L−1. The highest ratio of cells with permeabilised membranes (2.6 %), and the highest cell size and granularity were also obtained under these conditions. It was observed that C/N showed a stronger influence than the k  L  a on the measured cell parameters.</jats:p>

Publication details

Authors in the community:

Publication version

VoR - Version of Record

Publisher

Oxford University Press (OUP)

Title of the publication container

Journal of Industrial Microbiology and Biotechnology

First page or article number

865

Last page

875

Volume

40

Issue

8

ISSN

1476-5535

Fields of Science and Technology (FOS)

chemical-sciences - Chemical sciences

Keywords

  • Applied Microbiology and Biotechnology
  • Biotechnology
  • Bioengineering

Publication language (ISO code)

eng - English

Alternative identifier (URI)

http://www.scopus.com/inward/record.url?eid=2-s2.0-84880775863&partnerID=MN8TOARS

Rights type:

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