Article (Scientific journals)
Beech wood Fagus sylvatica dilute-acid hydrolysate as a feedstock to support Chlorella sorokiniana biomass, fatty acid and pigment production
Miazek, Krystian; Remacle, Claire; Richel, Aurore et al.
2017In Bioresource Technology, 230 (April 2017), p. 122–131
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Keywords :
Wood hydrolysate; Microalgae; Mixotrophy; Heterotrophy; Fatty acids; Pigments
Abstract :
[en] This work evaluates the possibility of using beech wood (Fagus sylvatica) dilute-acid (H2SO4) hydrolysate as a feedstock for Chlorella sorokiniana growth, fatty acid and pigment production. Neutralized wood acid hydrolysate, containing organic and mineral compounds, was tested on Chlorella growth at different concentrations and compared to growth under phototrophic conditions. Chlorella growth was improved at lower loadings and inhibited at higher loadings. Based on these results, a 12% neutralized wood acid hydrolysate (Hyd12%) loading was selected to investigate its impact on Chlorella growth, fatty acid and pigment production. Hyd12% improved microalgal biomass, fatty acid and pigment productivities both in light and in dark, when compared to photoautotrophic control. Light intensity had substantial influence on fatty acid and pigment composition in Chlorella culture during Hyd12%-based growth. Moreover, heterotrophic Chlorella cultivation with Hyd12% also showed that wood hydrolysate can constitute an attractive feedstock for microalgae cultivation in case of lack of light.
Disciplines :
Agriculture & agronomy
Author, co-author :
Miazek, Krystian ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie biologique industrielle
Remacle, Claire  ;  Université de Liège > Département des sciences de la vie > Génétique et physiologie des microalgues
Richel, Aurore  ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie biologique industrielle
Goffin, Dorothée ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Chimie biologique industrielle
Language :
English
Title :
Beech wood Fagus sylvatica dilute-acid hydrolysate as a feedstock to support Chlorella sorokiniana biomass, fatty acid and pigment production
Publication date :
25 January 2017
Journal title :
Bioresource Technology
ISSN :
0960-8524
eISSN :
1873-2976
Publisher :
Elsevier Science
Volume :
230
Issue :
April 2017
Pages :
122–131
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CARE AgricultureIsLife
Available on ORBi :
since 08 February 2017

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