Vegetal waste degradation by microbial strains inoculation

Authors

  • Nubia Grijalva Vallejos Universidad Tecnológica Equinoccial

DOI:

https://doi.org/10.29019/enfoqueute.v4n1.21

Keywords:

waste, strains, lignocellulose, enzymes, inoculation

Abstract

(Received: 2013/03/31 - Accepted: 2013/06/02)

Vegetal waste treatment product of urban, agricultural and industrial processes has severaltechnical problems and constitutes a significant environmental concern. Among them are thepersistence of crop protection products in high concentrations in plant material and the lack ofmicroorganisms that can tolerate such compounds and efficiently decompose the substrate.Bacteria and mainly white rot fungi are the main decomposers of lignin because of their ability tosynthesize extracellular hydrolytic and oxidative enzymes in large quantities. Trichodermareesei, Aspergillus niger, Penicillium sp. and Phanerochaete chrysosporium strains are modelstrains whose hight degradation efficiency with lignocellulose materials even in the presence ofpollutants has been proven. Several studies such as directed mutagenesis, co-culturing andheterologous expression have been done in order to improve the content of some enzymes(cellulase, xylanase, and β-glucosidase) in model strains, additionally it has been done newgenetic searches to find other microorganisms with this potential. Its main applications are theindustrial production of ethanol and some seconday metabolites under controlled conditions infermentation processes. This review provides an overview about strategies and methodologiescurrently used for vegetal waste utilization by inoculation of microbial strains.

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Published

2013-06-27

How to Cite

Grijalva Vallejos, N. (2013). Vegetal waste degradation by microbial strains inoculation. Enfoque UTE, 4(1), pp. 1 – 13. https://doi.org/10.29019/enfoqueute.v4n1.21

Issue

Vol. 4 No. 1 (2013)

Section

Miscellaneous

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