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Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana

Dreschke, Gilbert; d'Ippolito, Giuliana; Panico, Antonio; Lens, Piet N.L.; Esposito, Giovanni; Fontana, Angelo


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  <identifier identifierType="DOI">10.5281/zenodo.3247830</identifier>
  <creators>
    <creator>
      <creatorName>Dreschke, Gilbert</creatorName>
      <givenName>Gilbert</givenName>
      <familyName>Dreschke</familyName>
    </creator>
    <creator>
      <creatorName>d'Ippolito, Giuliana</creatorName>
      <givenName>Giuliana</givenName>
      <familyName>d'Ippolito</familyName>
    </creator>
    <creator>
      <creatorName>Panico, Antonio</creatorName>
      <givenName>Antonio</givenName>
      <familyName>Panico</familyName>
    </creator>
    <creator>
      <creatorName>Lens, Piet N.L.</creatorName>
      <givenName>Piet N.L.</givenName>
      <familyName>Lens</familyName>
    </creator>
    <creator>
      <creatorName>Esposito, Giovanni</creatorName>
      <givenName>Giovanni</givenName>
      <familyName>Esposito</familyName>
    </creator>
    <creator>
      <creatorName>Fontana, Angelo</creatorName>
      <givenName>Angelo</givenName>
      <familyName>Fontana</familyName>
    </creator>
  </creators>
  <titles>
    <title>Enhancement of hydrogen production rate by high biomass concentrations of Thermotoga neapolitana</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2018</publicationYear>
  <subjects>
    <subject>Hydrogen</subject>
    <subject>Thermotoga neapolitana</subject>
    <subject>Biomass concentration</subject>
    <subject>Dark fermentation</subject>
    <subject>Hyperthermophilic</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2018-05-13</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Text">Working paper</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/3247830</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.3247829</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/bioreco2ver-h2020</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;The objective of this study was to enhance the hydrogen production rate of dark&amp;nbsp;fermentation in batch operation. For the first time, the hyperthermophilic pure culture of&amp;nbsp;Thermotoga neapolitana cf. Capnolactica was applied at elevated biomass concentrations. The increase of the initial biomass concentration from 0.46 to 1.74 g cell dry weight/L led to a general acceleration of the fermentation process, reducing the fermentation time of 5 g glucose/L down to 3 h with a lag phase of 0.4 h. The volumetric hydrogen production rate increased from 323 (&amp;plusmn;11) to 654 (&amp;plusmn;30) mL/L/h with a concomitant enhancement of the&amp;nbsp;biomass growth and glucose consumption rate. The hydrogen yield of 2.45 (&amp;plusmn;0.09) mol H2/&amp;nbsp;mol glucose, the hydrogen concentration of 68% in the produced gas and the composition&amp;nbsp;of the end products in the digestate, i.e. 62.3 (&amp;plusmn;2.5)% acetic acid, 23.5 (&amp;plusmn;2.9)% lactic acid and 2.3 (&amp;plusmn;0.1)% alanine, remained unaffected at increasing biomass concentrations.&lt;/p&gt;</description>
  </descriptions>
  <fundingReferences>
    <fundingReference>
      <funderName>European Commission</funderName>
      <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/501100000780</funderIdentifier>
      <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/760431/">760431</awardNumber>
      <awardTitle>Biological routes for CO2 conversion into chemical building blocks</awardTitle>
    </fundingReference>
  </fundingReferences>
</resource>
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