Weedy lignocellulosic feedstock and microbial metabolic engineering

Advancing the generation of 'Biofuel'

Anuj K. Chandel, Om V. Singh

Research output: Contribution to journalArticle

Abstract

Lignocellulosic materials are the most abundant renewable organic resources (∼200 billion tons annually) on earth that are readily available for conversion to ethanol and other value-added products, but they have not yet been tapped for the commercial production of fuel ethanol. The lignocellulosic substrates include woody substrates such as hardwood (birch and aspen, etc.) and softwood (spruce and pine, etc.), agro residues (wheat straw, sugarcane bagasse, corn stover, etc.), dedicated energy crops (switch grass, and Miscanthus etc.), weedy materials (Eicchornia crassipes, Lantana camara etc.), and municipal solid waste (food and kitchen waste, etc.). Despite the success achieved in the laboratory, there are limitations to success with lignocellulosic substrates on a commercial scale. The future of lignocellulosics is expected to lie in improvements of plant biomass, metabolic engineering of ethanol, and cellulolytic enzyme-producing microorganisms, fullest exploitation of weed materials, and process integration of the individual steps involved in bioethanol production. Issues related to the chemical composition of various weedy raw substrates for bioethanol formation, including chemical composition-based structural hydrolysis of the substrate, need special attention. This area could be opened up further by exploring genetically modified metabolic engineering routes in weedy materials and in biocatalysts that would make the production of bioethanol more efficient.

Original languageEnglish (US)
Pages (from-to)1289-1303
Number of pages15
JournalApplied Microbiology and Biotechnology
Volume89
Issue number5
DOIs
StatePublished - Mar 2011
Externally publishedYes

Fingerprint

Metabolic Engineering
Biofuels
Ethanol
Lantana
Solid Waste
Betula
Saccharum
Enzymes
Poaceae
Biomass
Triticum
Zea mays
Hydrolysis
Food

Keywords

  • Bioethanol
  • Biorefinery
  • Fermentation
  • Lignocellulose
  • Weed lignocelluloses

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Weedy lignocellulosic feedstock and microbial metabolic engineering : Advancing the generation of 'Biofuel'. / Chandel, Anuj K.; Singh, Om V.

In: Applied Microbiology and Biotechnology, Vol. 89, No. 5, 03.2011, p. 1289-1303.

Research output: Contribution to journalArticle

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