Alternatives for detoxification of diluted-acid lignocellulosic hydrolyzates for use in fermentative processes: a review
Acid hydrolysis of lignocellulosic materials produces several inhibitory compounds, such as sugar and lignin degradation products, compounds derived from the lignocellulosic structure, and heavy metal ions. Their toxicity is a major factor limiting bioconversion processes that utilize hydrolyzates....
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| Veröffentlicht in: | Bioresource Technology 2004-05, Vol.93 (1), p.1-10 |
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| creator | Mussatto, Solange Inês Roberto, Inês Conceição |
| description | Acid hydrolysis of lignocellulosic materials produces several inhibitory compounds, such as sugar and lignin degradation products, compounds derived from the lignocellulosic structure, and heavy metal ions. Their toxicity is a major factor limiting bioconversion processes that utilize hydrolyzates. The identification of these compounds and the choice of the best hydrolyzate detoxification method are important for improving the efficiency of the fermentative processes. A variety of biological, physical, and chemical techniques have been proposed to reduce the concentration of these compounds in lignocellulose hydrolyzates. However, the efficiency of any detoxification method depends both on the hydrolyzate composition, which differs according to the raw material used, and on the hydrolysis conditions employed. This review describes the effects of the inhibitory compounds on fermentation yield and productivity, as well as various detoxification methods for treating the hydrolyzates. |
| doi_str_mv | 10.1016/j.biortech.2003.10.005 |
| format | Article |
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Their toxicity is a major factor limiting bioconversion processes that utilize hydrolyzates. The identification of these compounds and the choice of the best hydrolyzate detoxification method are important for improving the efficiency of the fermentative processes. A variety of biological, physical, and chemical techniques have been proposed to reduce the concentration of these compounds in lignocellulose hydrolyzates. However, the efficiency of any detoxification method depends both on the hydrolyzate composition, which differs according to the raw material used, and on the hydrolysis conditions employed. 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Plant production ; Hydrogen-Ion Concentration ; Hydrolysates ; Hydrolysis ; Inactivation, Metabolic ; Inhibitors ; Lignin - metabolism ; lignocellulose ; Lignocellulosic hydrolyzates ; Metals, Heavy - toxicity ; Methods. Procedures. Technologies ; Q1 ; Reviews ; Temperature ; Time Factors ; Use of agricultural and forest wastes. 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Their toxicity is a major factor limiting bioconversion processes that utilize hydrolyzates. The identification of these compounds and the choice of the best hydrolyzate detoxification method are important for improving the efficiency of the fermentative processes. A variety of biological, physical, and chemical techniques have been proposed to reduce the concentration of these compounds in lignocellulose hydrolyzates. However, the efficiency of any detoxification method depends both on the hydrolyzate composition, which differs according to the raw material used, and on the hydrolysis conditions employed. This review describes the effects of the inhibitory compounds on fermentation yield and productivity, as well as various detoxification methods for treating the hydrolyzates.</description><subject>Acids</subject><subject>Acids - metabolism</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Bioconversions. Hemisynthesis</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>Biotechnology - methods</subject><subject>Cellulose - metabolism</subject><subject>Charcoal</subject><subject>Detoxification</subject><subject>Fermentation</subject><subject>Fermentative processes</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>Hydrogen-Ion Concentration</subject><subject>Hydrolysates</subject><subject>Hydrolysis</subject><subject>Inactivation, Metabolic</subject><subject>Inhibitors</subject><subject>Lignin - metabolism</subject><subject>lignocellulose</subject><subject>Lignocellulosic hydrolyzates</subject><subject>Metals, Heavy - toxicity</subject><subject>Methods. Procedures. Technologies</subject><subject>Q1</subject><subject>Reviews</subject><subject>Temperature</subject><subject>Time Factors</subject><subject>Use of agricultural and forest wastes. 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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Acids Acids - metabolism Agronomy. Soil science and plant productions Bioconversions. Hemisynthesis Biological and medical sciences Biotechnology Biotechnology - methods Cellulose - metabolism Charcoal Detoxification Fermentation Fermentative processes Fundamental and applied biological sciences. Psychology General agronomy. Plant production Hydrogen-Ion Concentration Hydrolysates Hydrolysis Inactivation, Metabolic Inhibitors Lignin - metabolism lignocellulose Lignocellulosic hydrolyzates Metals, Heavy - toxicity Methods. Procedures. Technologies Q1 Reviews Temperature Time Factors Use of agricultural and forest wastes. Biomass use, bioconversion |
| title | Alternatives for detoxification of diluted-acid lignocellulosic hydrolyzates for use in fermentative processes: a review |
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