Citric acid production by the diploid strains of Aspergillus niger obtained by protoplast fusion

Kohtaro Kirimura, Iwao Nakajima, Sung Pyo Lee, Seiichiro Kawabe, Shoji Usami

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Diploid strains were obtained following protoplast fusion between two citric acid producers of Aspergillus niger, one for the solid culture and the other for the shaking culture. In the shaking culture, all the diploid strains exhibited lower productivities than one parental strain. However, in the solid culture, some diploid strains exhibited higher productivities than either parental strain; the best diploid strain produced 1.2 times as much citric acid as the parental strain in solid culture.

Original languageEnglish
Pages (from-to)504-506
Number of pages3
JournalApplied Microbiology and Biotechnology
Volume27
Issue number5-6
DOIs
Publication statusPublished - 1988 Feb 1

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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