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Harnessing the power of enzymes for environmental stewardship

Paper ID Volume ID Publish Year Pages File Format Full-Text
14463 1223 2012 21 PDF Available
Title
Harnessing the power of enzymes for environmental stewardship
Abstract

Enzymes are versatile catalysts with a growing number of applications in biotechnology. Their properties render them also attractive for waste/pollutant treatment processes and their use might be advantageous over conventional treatments. This review highlights enzymes that are suitable for waste treatment, with a focus on cell-free applications or processes with extracellular and immobilized enzymes. Biological wastes are treated with hydrolases, primarily to degrade biological polymers in a pre-treatment step. Oxidoreductases and lyases are used to biotransform specific pollutants of various nature. Examples from pulp and paper, textile, food and beverage as well as water and chemical industries illustrate the state of the art of enzymatic pollution treatment. Research directions in enzyme technology and their importance for future development in environmental biotechnology are elaborated. Beside biological and biochemical approaches, i.e. enzyme prospection and the design of enzymes, the review also covers efforts in adjacent research fields such as insolubilization of enzymes, reactor design and the use of additives. The effectiveness of enzymatic processes, especially when combined with established technologies, is evident. However, only a limited number of enzymatic field applications exist. Factors like cost and stability of biocatalysts need to be addressed and the collaboration and exchange between academia and industry should be further strengthened to achieve the goal of sustainability.

Keywords
4-CP, 4-chlorophenol; ABTS, 2,2′-azino-bis-3-ethylbenzothiozoline-6-sulphonic acid; AOP, Advanced oxidation process; BOD, Biochemical oxygen demand; BPA, Bisphenol A; CDH, Cellobiose dehydrogenase; CLEA®, Crosslinked enzyme aggregate; COD, Chemical oxygen
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 30, Issue 5, September–October 2012, Pages 933–953
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us