Determination of pyrroloquinoline quinone by enzymatic and LC-MS/MS methods to clarify its levels in foods

• Chikara Kato ,

  Contributed equally to this work with: Chikara Kato, Emiko Kawai

  Roles Conceptualization, Investigation, Methodology, Validation, Visualization, Writing – original draft

  Affiliation Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan

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• Emiko Kawai ,

  Contributed equally to this work with: Chikara Kato, Emiko Kawai

  Roles Investigation, Validation, Visualization, Writing – original draft

  Affiliation Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan

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• Naoki Shimizu,

  Roles Writing – original draft

  Affiliation Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan

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• Tsuyoshi Mikekado,

  Roles Resources, Writing – review & editing

  Affiliation Niigata Research Laboratory, Mitsubishi Gas Chemical Company, Inc., Niigata, Japan

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• Fumiko Kimura,

  Roles Methodology, Resources, Writing – review & editing

  Affiliation Department of Human Health and Nutrition, Shokei Gakuin University, Natori, Japan

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• Teruo Miyazawa,

  Roles Project administration, Resources, Supervision, Writing – review & editing

  Affiliations New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai, Japan, Food and Health Science Research Unit, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan

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• Kiyotaka Nakagawa

  Roles Conceptualization, Methodology, Project administration, Resources, Supervision, Writing – original draft

  * E-mail: nkgw@m.tohoku.ac.jp

  Affiliation Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Japan

  http://orcid.org/0000-0003-3026-7358

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