Distribution and composition of extracellular polymeric substances in membrane-aerated biofilm

Journal of Biotechnology
Tinggang LiJunxin Liu

Abstract

Extracellular polymeric substances (EPS) are one of the main components of the biofilm and perform important functions in the biofilm system. In this study, two membrane-aerated biofilms (MABs) were developed for the thin and thick biofilms under different surface loading rates (SLRs). Supplies of oxygen and substrates in the MAB were from two opposite directions. This counter diffusion of nutrients resulted in a different growth environment, in contrast to conventional biofilms receiving both oxygen and substrates from the same side. The compositions, distributions and physicochemical properties (solubility and bindability) of EPS in the MABs of different thicknesses under different SLRs were studied. The effect of dissolved oxygen (DO) concentration within the MAB on EPS properties and distribution was investigated. Experimental results showed the different biofilm thicknesses produced substantially different profiles of EPS composition and distribution. Soluble proteins were more dominant than soluble polysaccharides in the inner aerobic layer of the biofilms; in contrast, bound proteins were greater than bound polysaccharides in the outer anoxic or anaerobic layer of the biofilms. The biofilm-EPS matrix consisted mainly of ...Continue Reading

References

Jul 1, 1992·Current Microbiology·A D Junkins, M P Doyle
Aug 1, 1994·Archives of Otolaryngology--head & Neck Surgery·Y FinkelsteinD Ophir
May 15, 2002·Journal of Biotechnology·Hong Liu, Herbert H P Fang
Sep 27, 2003·Water Research·Michael J SemmensAlina Christianson
Apr 7, 2004·Applied and Environmental Microbiology·Alina C ColeTimothy M LaPara
Jul 30, 2004·International Journal of Food Microbiology·Jee-Hoon Ryu, Larry R Beuchat
Feb 5, 2005·Applied and Environmental Microbiology·B S McSwainP A Wilderer
Apr 22, 2005·Applied Microbiology and Biotechnology·Zhi-Wu WangJoo-Hwa Tay
Nov 18, 2005·Journal of Industrial Microbiology & Biotechnology·Timothy M LaParaMichael J Semmens
Mar 15, 2006·Applied Microbiology and Biotechnology·A SivanV Pavlov
Mar 6, 2007·Applied and Environmental Microbiology·Francois AhimouPaige J Novak
Apr 16, 2008·Environmental Science & Technology·Tinggang LiF S Wong
Jan 5, 1991·Biotechnology and Bioengineering·D H Applegate, J D Bryers

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Citations

Mar 29, 2012·Biofouling·C E Marcato-RomainV Dossat-Létisse
Nov 16, 2013·Environmental Science and Pollution Research International·Mustafa AslanHalil Hasar
Feb 19, 2016·Environmental Science and Pollution Research International·Hanife Sari ErkanMahmut R Bayramoglu
May 4, 2011·Bioresource Technology·Derya Yuksel Koseoglu-ImerBulent Keskinler
Mar 1, 2015·FEMS Microbiology Reviews·Brandon W PetersonHenk J Busscher
Jul 12, 2016·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Chul-Hwi ParkGee-Bong Han
Dec 16, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·A SartiE Foresti
Aug 11, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Secil BayarBulent Keskinler
Oct 11, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Hanife Sari Erkan, Guleda Onkal Engin

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