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Winery biomass waste degradation by sequential sonication and mixed fungal enzyme treatments

Overview of attention for article published in Fungal Genetics & Biology, September 2016
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Title
Winery biomass waste degradation by sequential sonication and mixed fungal enzyme treatments
Published in
Fungal Genetics & Biology, September 2016
DOI 10.1016/j.fgb.2016.08.008
Pubmed ID
Authors

Avinash V. Karpe, Vijay V. Dhamale, Paul D. Morrison, David J. Beale, Ian H. Harding, Enzo A. Palombo

Abstract

To increase the efficiency of winery-derived biomass biodegradation, grape pomace was ultrasonicated for 20 minutes in the presence of 0.25 M, 0.5 M and 1.0 M KOH and 1.0 M NaOH. This was followed by treatment with a 1:1 (v/v) mix of crude enzyme preparation derived from Phanerochaete chrysosprium and Trametes versicolor for 18 hours and a further 18 hour treatment with a 60:14:4:2 precent ratio combination of enzymes derived from Aspergillus niger: Penicillium chrysogenum: Trichoderma harzianum: P. citrinum, repsectively. Process efficiency was evaluated by its comparison to biological only mixed fungal degradation over 16 days. Ultrasonication treatment with 0.5 M KOH followed by mixed enzyme treatment yielded the highest lignin degradation of about 13%. Cellulase, β-glucosidase, xylanase, laccase and lignin peroxidase activities of 77.9, 476, 5,390.5, 66.7 and 29, 230.7 U/mL, respectively, were observed during biomass degradation. Gas chromatography-mass spectrometry (GC-MS) analysis of the degraded material identified commercially important compounds such as gallic acid, lithocholic acid, glycolic acidand lactic acid which were generated in considerable quantities. Thus, the combination of sonication pre-treatment and enzymatic degradation has the potential to considerably improve the breakdown of agricutural biomass and produce commercially useful compounds in markeldly less time (< 40 hours) with respect to biological only degradation (16 days).

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Mendeley readers

The data shown below were compiled from readership statistics for 57 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 57 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 9 16%
Student > Master 9 16%
Student > Bachelor 6 11%
Student > Doctoral Student 5 9%
Researcher 4 7%
Other 9 16%
Unknown 15 26%
Readers by discipline Count As %
Agricultural and Biological Sciences 9 16%
Environmental Science 6 11%
Biochemistry, Genetics and Molecular Biology 6 11%
Engineering 5 9%
Chemistry 5 9%
Other 9 16%
Unknown 17 30%