Investigation of antioxidant and antimicrobial activity of zingiber officinale roscoe oleosin on airborne pathogenic microorganisms
Zingiber Officinale Roscoe or ginger has been found to have characteristics that are beneficial to human beings for different purposes. In this study, oleoresins from both young and mature gingers were studied to evaluate their antioxidant and antimicrobial activity on common airborne pathogenic...
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Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Universiti Teknologi Mara (UiTM) Pulau Pinang
2017
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Subjects: | |
Online Access: | http://irep.iium.edu.my/58112/1/enc521.pdf http://irep.iium.edu.my/58112/ http://uppp.uitm.edu.my/images/doc/ESTEEM_pdf_format/vol13specialaugust/enc521.pdf |
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Institution: | Universiti Islam Antarabangsa Malaysia |
Language: | English |
Summary: | Zingiber Officinale Roscoe or ginger has been found to have characteristics
that are beneficial to human beings for different purposes. In this study,
oleoresins from both young and mature gingers were studied to evaluate
their antioxidant and antimicrobial activity on common airborne pathogenic
microorganisms. The total phenolic and antioxidant contents were tested
using the Folin–Ciocalteu method and DPPH (2, 2-diphenyl-1-
picrylhydrazyl) scavenging activity assay respectively. Meanwhile,
antimicrobial activity was determined using the disc diffusion and minimum
inhibitory concentration (MIC) against two pathogenic bacteria and fungi;
namely S. aureus, P. aeruginosa, C. albicans, and A. niger. Young ginger
oleoresin exhibits higher total phenolic contents (129.5869 ± 14.27 GAE) and
antioxidant activity (99.06 % ± 1.41) than matured ginger oleoresin. In the
antimicrobial study, the result showed that both young and matured
oleoresins were able to inhibit the growth of common airborne pathogenic
bacteria. However, common airborne pathogenic fungi were resistant to both
oleoresin of ginger extract. The oleoresin was able to suppress the growth of
S. aureus at the low concentration of 1 mg/ml rather than P. aeruginosa at
10 mg/ml. Young ginger possess higher antioxidant and antibacterial activity
than matured ginger. |
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