Heat treatments of ginger root modify but not diminish its antioxidant activity as measured with multiple free radical scavenging (MULTIS) method

Yoshimi Sueishi, Hiroaki Masamoto, Yashige Kotake

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1 Citation (Scopus)

Abstract

Ginger (Zingiber officinale Rosc.) root (or rhizome) has been reported to have antioxidant properties such as reactive oxygen species scavenging activities. Using multiple freeradical scavenging method, we have newly determined the scavenging abilities of ginger roots against five reactive oxygen species, i.e., HO , O 2 -• , RO , tertBuOO , and 1 O 2 . After heating grated ginger roots at 80°C for 2 h, nearly 50% decrease in scavenging ability was recorded against 1 O 2 and tertBuOO . Conversely, the O 2 -• scavenging ability increased by about 56% after heat treatment. Based on the antioxidant activity measurement of the ginger’s components, i.e., 6gingerol, 6shogaol, and zingerone, active species acting as antioxidant capacity of ginger was shown. Additionally, ginger’s antioxidant capacity was quantitatively compared with that of rosemary extract, indicating that rosemary is peroxyl specific scavenger while ginger has higher scavenging ability against HO and 1 O 2 .

Original languageEnglish
Pages (from-to)143-147
Number of pages5
Journaljournal of clinical biochemistry and nutrition
Volume64
Issue number2
DOIs
Publication statusPublished - Mar 1 2019

Fingerprint

Ginger
Scavenging
Free Radicals
Antioxidants
Hot Temperature
Heat treatment
Reactive Oxygen Species
Rhizome
Heating

Keywords

  • Antioxidant capacity
  • ESR spin trapping
  • Ginger
  • Multiple freeradical scavenging method
  • MULTIS

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics
  • Clinical Biochemistry

Cite this

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abstract = "Ginger (Zingiber officinale Rosc.) root (or rhizome) has been reported to have antioxidant properties such as reactive oxygen species scavenging activities. Using multiple freeradical scavenging method, we have newly determined the scavenging abilities of ginger roots against five reactive oxygen species, i.e., HO • , O 2 -• , RO • , tertBuOO • , and 1 O 2 . After heating grated ginger roots at 80°C for 2 h, nearly 50{\%} decrease in scavenging ability was recorded against 1 O 2 and tertBuOO • . Conversely, the O 2 -• scavenging ability increased by about 56{\%} after heat treatment. Based on the antioxidant activity measurement of the ginger’s components, i.e., 6gingerol, 6shogaol, and zingerone, active species acting as antioxidant capacity of ginger was shown. Additionally, ginger’s antioxidant capacity was quantitatively compared with that of rosemary extract, indicating that rosemary is peroxyl specific scavenger while ginger has higher scavenging ability against HO • and 1 O 2 .",
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N2 - Ginger (Zingiber officinale Rosc.) root (or rhizome) has been reported to have antioxidant properties such as reactive oxygen species scavenging activities. Using multiple freeradical scavenging method, we have newly determined the scavenging abilities of ginger roots against five reactive oxygen species, i.e., HO • , O 2 -• , RO • , tertBuOO • , and 1 O 2 . After heating grated ginger roots at 80°C for 2 h, nearly 50% decrease in scavenging ability was recorded against 1 O 2 and tertBuOO • . Conversely, the O 2 -• scavenging ability increased by about 56% after heat treatment. Based on the antioxidant activity measurement of the ginger’s components, i.e., 6gingerol, 6shogaol, and zingerone, active species acting as antioxidant capacity of ginger was shown. Additionally, ginger’s antioxidant capacity was quantitatively compared with that of rosemary extract, indicating that rosemary is peroxyl specific scavenger while ginger has higher scavenging ability against HO • and 1 O 2 .

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