Original Paper

Journal of Industrial Microbiology & Biotechnology

, Volume 38, Issue 1, pp 199-207

First online:

Biological detoxification of different hemicellulosic hydrolysates using Issatchenkia occidentalis CCTCC M 206097 yeast

  • Bruno Guedes FonsecaAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Rondinele de Oliveira MouttaAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Flavio de Oliveira FerrazAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Emílio Rosa VieiraAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Andrei Santini NogueiraAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Bruno Fernandes BaratellaAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena
  • , Luiz Carlos RodriguesAffiliated withUniversidade Federal Fluminense-UFF
  • , Zhang Hou-RuiAffiliated withPhytochemical Department, Guangxi Institute of Botany, The Chinese Academy of Sciences
  • , Sílvio Silvério da SilvaAffiliated withDeptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena Email author 

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Abstract

This work had as its main objective to contribute to the development of a biological detoxification of hemicellulose hydrolysates obtained from different biomass plants using Issatchenkia occidentalis CCTCC M 206097 yeast. Tests with hemicellulosic hydrolysate of sugarcane bagasse in different concentrations were carried out to evaluate the influence of the hydrolysate concentration on the inhibitory compounds removal from the sugarcane bagasse hydrolysate, without reduction of sugar concentration. The highest reduction values of inhibitors concentration and less sugar losses were observed when the fivefold concentrated hydrolysate was treated by the evaluated yeast. In these experiments it was found that the high sugar concentrations favored lower sugar consumption by the yeast. The highest concentration reduction of syringaldehyde (66.67%), ferulic acid (73.33%), furfural (62%), and 5-HMF (85%) was observed when the concentrated hydrolysate was detoxified by using this yeast strain after 24 h of experimentation. The results obtained in this work showed the potential of the yeast Issatchenkia occidentalis CCTCC M 206097 as detoxification agent of hemicellulosic hydrolysate of different biomass plants.

Keywords

Hydrolysate Biodetoxification Issatchenkia occidentalis Furans Phenolic compounds