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@ARTICLE{Menzel:55992,
      author       = {Menzel, M. I. and Oros-Peusquens, A.-M. and Pohlmeier, A.
                      and Shah, J. N. and Schurr, U. and Schneider, H. U.},
      title        = {{C}omparing 1{H}-{NMR} imaging and relaxation mapping of
                      {G}erman white asparagus from five different cultivation
                      sites},
      journal      = {Journal of plant nutrition and soil science},
      volume       = {170},
      issn         = {1436-8730},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PreJuSER-55992},
      pages        = {24 - 38},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Nuclear magnetic resonance imaging (MRI) and complementary
                      analytical techniques were used to address the question
                      whether white asparagus (Asparagus officinalis L.) from
                      different cultivation sites in Germany can be distinguished
                      on the basis of NMR relaxation times. Five locations with
                      contrasting soil properties and composition within the two
                      asparagus-cultivation regions Rhineland and Lower Franconia
                      were selected for this project. For the first time, entire
                      asparagus plants in their authentic soil environment
                      excavated directly from the original harvest site were
                      imaged by the NMR technique. However, they could not be
                      employed for determination of relaxation times of spears in
                      situ, because of artifacts arising from soil properties.
                      Instead, market-ready asparagus spears and freshly prepared
                      spear saps from the five locations were used to acquire MRI
                      data sets with different (slow and fast) imaging methods and
                      to compute spatially resolved distributions (maps) of T-1,
                      T-2, and T-2* relaxation times. Comparison of the data for
                      pith, vascular tissue, and peel of the spears yielded only
                      marginal, if any, differences in T-1, T-2, and T-2* between
                      the specimens from the five locations, which were not
                      sufficient for an unambiguous region-related distinction.
                      More pronounced differences in T-1, T-2, and T-2* were
                      visible for the spear saps, allowing a clear distinction
                      between individual specimens for each of the two cultivation
                      regions. The results are discussed in terms of an
                      application potential for correlated NMR relaxation times of
                      tissue saps for future geographic authentication of
                      agricultural produces.},
      keywords     = {J (WoSType)},
      cin          = {ICG-3 / ICG-4 / INB-3 / JARA-ENERGY},
      ddc          = {570},
      cid          = {I:(DE-Juel1)ICG-3-20090406 / I:(DE-Juel1)VDB793 /
                      I:(DE-Juel1)INB-3-20090406 / $I:(DE-82)080011_20140620$},
      pnm          = {Terrestrische Umwelt / Funktion und Dysfunktion des
                      Nervensystems},
      pid          = {G:(DE-Juel1)FUEK407 / G:(DE-Juel1)FUEK409},
      shelfmark    = {Agronomy / Plant Sciences / Soil Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000244915300004},
      doi          = {10.1002/jpln.200625114},
      url          = {https://juser.fz-juelich.de/record/55992},
}