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Dielectric barrier discharge (DBD) plasma induced flavonoid degradation kinetics and mechanism in water.

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Title: Dielectric barrier discharge (DBD) plasma induced flavonoid degradation kinetics and mechanism in water.
Authors: Khan, Muhammad Saiful Islam1 (AUTHOR), Kim, Yun-Ji1,2 (AUTHOR) yunji@kfri.re.kr
Source: LWT - Food Science & Technology. Jan2020, Vol. 118, pN.PAG-N.PAG. 1p.
Subjects: Flavonoids, Ions, Quercetin, Chemical kinetics, Dielectrics, Myricetin
Abstract: In this work, we evaluated the degradation mechanism of standard flavonoids when treated with dielectric barrier discharge (DBD) plasma in water. Five different standard flavonoids were chosen for analysis, including apigenin, myricetin, kaempferol, rutin, and quercetin. All flavonoids were treated for 5 min, and the samples were collected at different time intervals. The degradation kinetics of DBD plasma-treated samples were analyzed using HPLC, which follows first-order reaction kinetics. Various degradation peaks were observed in the HPLC chromatogram that started appearing within 10 s of DBD plasma treatment and increased until 60 s–90 s, subsequently degraded completely within 5 min of plasma treatment. LC-MS analysis was performed for the quercetin fragments obtained at 7.54 min. Based on the obtained major molecular ion peak at m/z 152.98 And 196.96; a quercetin degradation mechanism is suggested. The effect of two different feed gases (clean dry air and N 2) on flavonoid degradation was also evaluated. • Five different flavonoid standards in solution were treated using DBD plasma. • The degradation of flavonoids follows first-order kinetics. • An improved biologically active fragment was confirmed using LC-MS. • A possible fragmentation mechanism for quercetin degradation was proposed. [ABSTRACT FROM AUTHOR]
Copyright of LWT - Food Science & Technology is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 140097905
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  Data: Dielectric barrier discharge (DBD) plasma induced flavonoid degradation kinetics and mechanism in water.
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  Data: <searchLink fieldCode="AR" term="%22Khan%2C+Muhammad+Saiful+Islam%22">Khan, Muhammad Saiful Islam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Yun-Ji%22">Kim, Yun-Ji</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> yunji@kfri.re.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22LWT+-+Food+Science+%26+Technology%22">LWT - Food Science & Technology</searchLink>. Jan2020, Vol. 118, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Flavonoids%22">Flavonoids</searchLink><br /><searchLink fieldCode="DE" term="%22Ions%22">Ions</searchLink><br /><searchLink fieldCode="DE" term="%22Quercetin%22">Quercetin</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+kinetics%22">Chemical kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectrics%22">Dielectrics</searchLink><br /><searchLink fieldCode="DE" term="%22Myricetin%22">Myricetin</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this work, we evaluated the degradation mechanism of standard flavonoids when treated with dielectric barrier discharge (DBD) plasma in water. Five different standard flavonoids were chosen for analysis, including apigenin, myricetin, kaempferol, rutin, and quercetin. All flavonoids were treated for 5 min, and the samples were collected at different time intervals. The degradation kinetics of DBD plasma-treated samples were analyzed using HPLC, which follows first-order reaction kinetics. Various degradation peaks were observed in the HPLC chromatogram that started appearing within 10 s of DBD plasma treatment and increased until 60 s–90 s, subsequently degraded completely within 5 min of plasma treatment. LC-MS analysis was performed for the quercetin fragments obtained at 7.54 min. Based on the obtained major molecular ion peak at m/z 152.98 And 196.96; a quercetin degradation mechanism is suggested. The effect of two different feed gases (clean dry air and N 2) on flavonoid degradation was also evaluated. • Five different flavonoid standards in solution were treated using DBD plasma. • The degradation of flavonoids follows first-order kinetics. • An improved biologically active fragment was confirmed using LC-MS. • A possible fragmentation mechanism for quercetin degradation was proposed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of LWT - Food Science & Technology is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.lwt.2019.108777
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      – Code: eng
        Text: English
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      – SubjectFull: Flavonoids
        Type: general
      – SubjectFull: Ions
        Type: general
      – SubjectFull: Quercetin
        Type: general
      – SubjectFull: Chemical kinetics
        Type: general
      – SubjectFull: Dielectrics
        Type: general
      – SubjectFull: Myricetin
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      – TitleFull: Dielectric barrier discharge (DBD) plasma induced flavonoid degradation kinetics and mechanism in water.
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              Text: Jan2020
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              Y: 2020
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