Biological detoxification of different hemicellulosic hydrolysates using Issatchenkia occidentalis CCTCC M 206097 yeast.
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.
Fonseca
Bruno Guedes
BG
Deptamento de Biotecnologia Lorena, Universidade de São Paulo/Escola de Engenharia de Lorena, Lorena, São Paulo, 12.602-810, Brazil.
Moutta
Rondinele de Oliveira
Rde O
Ferraz
Flavio de Oliveira
Fde O
Vieira
Emílio Rosa
ER
Nogueira
Andrei Santini
AS
Baratella
Bruno Fernandes
BF
Rodrigues
Luiz Carlos
LC
Hou-Rui
Zhang
Z
da Silva
Sílvio Silvério
SS
D018533:Biomass; D001711:Biotransformation; D002241:Carbohydrates / Q000737:chemistry*; D002482:Cellulose / Q000378:metabolism*; D040503:Coffea / Q000737:chemistry; D005663:Furans / Q000378:metabolism; D006868:Hydrolysis; D011134:Polysaccharides / Q000378:metabolism*; D012441:Saccharomyces cerevisiae; D004718:Saccharomycetales / Q000378:metabolism*; D031786:Saccharum / Q000737:chemistry; D003313:Zea mays / Q000737:chemistry
D002241:Carbohydrates; D005663:Furans; D011134:Polysaccharides; C007916:hemicellulose; D002482:Cellulose; C027433:bagasse