Heat-enhanced production of chitosanase from Streptomyces griseus in the presence of liposome

Kien Xuan Ngo, Hiroshi Umakoshi, Toshinori Shimanouchi, Ho Sup Jung, Seiichi Morita, Ryoichi Kuboi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effects of heat stress and liposome treatment on the growth of Streptomyces griseus cells and chitosanase production were investigated on the basis of using the designed strategy of a stress-mediated bioprocess. The effective conditions for increasing the interaction between chitosanase and the 1-palmitoyl-2-oleoyl-3-phosphocholine (POPC) liposome under heat stress condition were determined on the basis of the results of circular dichroism (CD) and dielectric dispersion analysis (DDA). Under these effective conditions, S. griseus cells were cultivated for the effective production of chitosanase. The results obtained from both CD spectra and DDA showed that heat stress enhances the interaction of the POPC liposomes and chitosanase. The strongest interaction between them could be obtained in the specific temperature range of 40-45°C. The enhancement of the target chitosanase production was conducted under heat stress at 41°C in the presence and absence of the POPC liposomes. The growth rates of S. griseus cells in the cases of heat (41°C) and heat (41°C)/POPC treatments were respectively 1.2 and 1.4 times higher than that obtained under the control condition. In the heat (41°C) and heat (41°C)/POPC treatments, chitosanase activity increased to 1.8 and 2 times, respectively, higher than that obtained under the control condition. Heat stress and the addition of the POPC liposomes could therefore be utilized to induce the potential functions of bacterial cells for the enhancement of the final target production.

Original languageEnglish
Pages (from-to)495-501
Number of pages7
JournalJournal of Bioscience and Bioengineering
Volume100
Issue number5
DOIs
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

chitosanase
Streptomyces griseus
Thermogenesis
Liposomes
Phosphorylcholine
Hot Temperature
Dichroism
Circular Dichroism
Permittivity
Growth

Keywords

  • Chitosanase
  • Heat stress
  • Liposome
  • Membrane stress biotechnology
  • Streptomyces griseus

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering

Cite this

Heat-enhanced production of chitosanase from Streptomyces griseus in the presence of liposome. / Ngo, Kien Xuan; Umakoshi, Hiroshi; Shimanouchi, Toshinori; Jung, Ho Sup; Morita, Seiichi; Kuboi, Ryoichi.

In: Journal of Bioscience and Bioengineering, Vol. 100, No. 5, 2005, p. 495-501.

Research output: Contribution to journalArticle

Ngo, Kien Xuan ; Umakoshi, Hiroshi ; Shimanouchi, Toshinori ; Jung, Ho Sup ; Morita, Seiichi ; Kuboi, Ryoichi. / Heat-enhanced production of chitosanase from Streptomyces griseus in the presence of liposome. In: Journal of Bioscience and Bioengineering. 2005 ; Vol. 100, No. 5. pp. 495-501.
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