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عنوان فارسی مقاله:
تنفس آندیک از سودوموناس KT2440 در یک بیوراکتور برانگیخته تانک
عنوان انگلیسی مقاله:
Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Innovative fermentation processes are necessary for costeffective bio-production of chemicals [1]. Fermentation processes are operated under aerobic or anaerobic conditions. Aerobic processes have a high energy demand for intensive aeration of the fermentation broth. Anaerobic processes can be operated with lower energy input but show formation of unwanted by-products [2]. Microorganisms form by-products to balance their redox metabolism [3] which reduces yields and can cause product inhibition [4–6]. An alternative may be offered by electro-fermentation, where an electrode provides an electron source or sink to overcome bottlenecks or drive fermentations towards particular desired products [7,8]. In such bio-electrochemical processes the redoxmetabolism can be balanced by external electron transfer between the microorganism and an electrode as electron acceptor (anodic process) or donor (cathodic process) under anaerobic conditions. Electrofermentation has shown to be effective at increasing the synthesis of several products including ethanol, n-butanol and succinate with a variety of microorganisms such as Saccharomyces cerevisiae, Clostridium acetobutylicum or Actinobacillus succinogenes [9–12]. In contrast to all other electron acceptors or donors that can be utilised by microorganisms, electrodes cannot be depleted. Thus they offer the possibility of developing anaerobic production pathways that do not need to be stoichiometrically balanced with respect to the oxidation states of substrates and products [13]. Para-hydroxybenzoic acid (pHBA) is a high value intermediate in the shikimate pathway which is used for the production of poly-crystal polymers [14]. So far pHBA has been produced under aerobic conditions from glucose in recombinant strains of Escherichia coli [15], Saccharomyces cerevisiae [16,17] and Pseudomonas putida [18,19]. Maximal pHBA yields of 49 mmolCpHBA molC−1 glucose were achieved with P. putida in a chemostat cultivation [19]. P. putida may be a preferred production host for pHBA because of its high tolerance to aromatic compounds [20,21]. Bio-electrochemical systems in which microbial redox reactions are performed consist of an anodic and a cathodic chamber that are separated by a membrane [22]. When the oxidation of organic matter by microorganisms takes place in the anodic chamber, the process is referred to as anodic respiration. Anodic respiration requires electron transfer from the microorganism towards an external acceptor. External electron transfer, the central feature of electrogenic microorganisms, can occur by two different
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کلمات کلیدی:
KEGG GENOME: Pseudomonas putida KT2440 www.genome.jp/kegg-bin/show_organism?menu_type=pathway_modules... Pseudomonas putida KT2440 .... M00151 Cytochrome bc1 complex respiratory unit [PATH:ppu00190] M00155 Cytochrome c oxidase, prokaryotes ... Anodic respiration of Pseudomonas putida KT2440 in a stirred ... - Trove trove.nla.gov.au/work/214461863? Trove: Find and get Australian resources. Books, images, historic newspapers, maps, archives and more. Research paper: Anodic respiration of Pseudomonas putida KT2440 ... https://www.researchgate.net/.../305805562_Anodic_respiration_of_Pseudomonas_putid... References, authors & citations for 'Anodic respiration of Pseudomonas putida KT2440 in a stirred-tank bioreactor' on ResearchGate. Response of Pseudomonas putida KT2440 to Increased NADH and ... aem.asm.org/content/77/18/6597.full by BE Ebert - 2011 - Cited by 43 - Related articles The organisms used in this study were Pseudomonas putida KT2440 (5), .... NADH oxidase with native NADH dehydrogenases of the respiratory chain, we ... Response of Pseudomonas putida KT2440 to phenol at the level of ... https://www.ncbi.nlm.nih.gov/pubmed/20153847 by C Roma-Rodrigues - 2010 - Cited by 44 - Related articles Feb 12, 2010 - Response of Pseudomonas putida KT2440 to phenol at the level of ... surface and of a more active respiratory chain in the response to phenol. Construction and characterization of nitrate and nitrite respiring ... - NCBI https://www.ncbi.nlm.nih.gov/pubmed/23036925 by A Steen - 2013 - Cited by 8 - Related articles Oct 2, 2012 - Pseudomonas putida KT2440 is frequently used in biotechnical research and ... nitrate and nitrite respiration were introduced into KT2440. A reduction in growth rate of Pseudomonas putida KT2442 ... https://microbialcellfactories.biomedcentral.com/articles/10.1186/1475-2859-10-25 by S Follonier - 2011 - Cited by 24 - Related articles Apr 22, 2011 - Pseudomonas putida KT2440 and KT2442 belong to the .... of the respiratory quotient (RQ) from ~1 to ~2 mol mol-1 for both P. putida KT2440 ...
