Original Paper

Journal of Industrial Microbiology & Biotechnology

, Volume 37, Issue 2, pp 167-172

The use of Macronet resins to recover γ-decalactone produced by Rhodotorula aurantiaca from the culture broth

  • Mohamed AlchihabAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Bio-Industries, Centre Wallon de Biologie Industrielle Email author 
  • , Jean-Marc AldricAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Bio-Industries, Centre Wallon de Biologie Industrielle
  • , Mario AguedoAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Chimie Générale et Organique
  • , Jacqueline DestainAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Bio-Industries, Centre Wallon de Biologie Industrielle
  • , Jean-Paul WatheletAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Chimie Générale et Organique
  • , Philippe ThonartAffiliated withFaculté Universitaire des Sciences Agronomiques de Gembloux, Unité de Bio-Industries, Centre Wallon de Biologie Industrielle

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Abstract

During the biotransformation of castor oil into γ-decalactone, R. aurantiaca produced both the lactone form and its precursor (4-hydroxydecanoic acid). After six days of culture, a maximum yield of γ-decalactone of 6.5 g/l was obtained. The parameters of γ-decalactone adsorption on three Macronet resins (MN-202, MN-102 and MN-100) were investigated in water. Adsorption isotherms of γ-decalactone for the three Macronet resins were linear. The trapping of γ-decalactone produced by R. aurantiaca on these resins was then carried out. γ-Decalactone was effectively retained by all the studied Macronet resins. The resin MN-202 trapped γ-decalactone more efficiently than MN-102 and MN-100. The percentages of γ-decalactone adsorbed on the resins MN-202, MN-102 and MN-100 were, respectively, 85, 75 and 81%, whereas around 70% of the adsorbed γ-decalactone was then desorbed. We propose an industrial process that uses Macronet resins to extract γ-decalactone from culture broth of R. aurantiaca.

Keywords

γ-Decalactone Extraction Macronet resin Rhodotorula aurantiaca