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Bioaugmentation with an anaerobic fungus in a two-stage process for biohydrogen and biogas production using corn silage and cattail

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jun 2015Publisher:Elsevier BVJournal:Bioresource Technology, volume 185, pages 79-88 (issn: 0960-8524,

Authors: Valentine Nkongndem Nkemka; Brandon Gilroyed; Jay Yanke; Robert Gruninger; Darrell Vedres; Tim McAllister; Xiying Hao;

doi: 10.1016/j.biortech.2015.02.100

pmid: 25755016

Bioaugmentation with an anaerobic fungus in a two-stage process for biohydrogen and biogas production using corn silage and cattail

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Abstract

Bioaugmentation with an anaerobic fungus, Piromyces rhizinflata YM600, was evaluated in an anaerobic two-stage system digesting corn silage and cattail. Comparable methane yields of 328.8±16.8mLg(-1)VS and 295.4±14.5mLg(-1)VS and hydrogen yields of 59.4±4.1mLg(-1)VS and 55.6±6.7mLg(-1)VS were obtained for unaugmented and bioaugmented corn silage, respectively. Similar CH4 yields of 101.0±4.8mLg(-1)VS and 104±19.1mLg(-1)VS and a low H2 yield (<1mLg(-1)VS) were obtained for unaugmented and bioaugmented cattail, respectively. However, bioaugmentation resulted in an initial increase in CH4 and H2 production rates and also increased volatile fatty acid degradation rate for both substrates. Our study demonstrates the potential of bioaugmentation with anaerobic fungus for improving the digestibility of lignocellulose substrates for biogas and biohydrogen production.

Related Organizations

University of Guelph
Canada
Agriculture and Agriculture-Food Canada
Canada
Lethbridge Research and Development Centre
Canada
Agriculture and Agriculture-Food Canada
Canada
Lethbridge Research and Development Centre
Canada

Keywords

Silage, Typhaceae, Lignin, Zea mays, Bioreactors, Piromyces, Methane, Hydrogen

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	112
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%