Chemical Composition of Essential Oils from Different Parts of Zingiber kerrii Craib and Their Antibacterial, Antioxidant, and Tyrosinase Inhibitory Activities

Autor: Wisanu Maneerat, Aknarin Pintatum, Wim Vanden Berghe, Emilie Logie, Surat Laphookhieo
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Biomolecules
Volume 10
Issue 2
Biomolecules, Vol 10, Iss 2, p 228 (2020)
ISSN: 2218-273X
DOI: 10.3390/biom10020228
Popis: The essential oils of the fresh rhizomes
flowers
and leaves of Zingiber kerrii Craib were investigated using different extraction techniques
including solid-phase microextraction (SPME), hydrodistillation (HD), and organic solvent (OS), and characterized by gas chromatography&ndash
mass spectrometry (GC&ndash
MS). A total of 37 SPME
19 HD
and 36 OS compounds were identified from the rhizome extract of Z. kerrii
with the major components being &alpha
pinene
&beta
and terpinen-4-ol
respectively. From the flower extract
16 SPME
2 HD
and 10 OS compounds were identified
(E)-caryophyllene was found as a major compound by these techniques. The leaf extract exhibited 20 SPME
13 HD
and 14 OS compounds
with &alpha
(E)-caryophyllene
and n-hexadecanoic acid being the major compounds
respectively. The rhizome extract showed tyrosinase inhibitory activity of 71.60% and a total phenolic content of 22.4 mg gallic acid/g. The IC50 values of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2&prime
azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays were 25.2 µ
g/mL and 153.6 µ
g/mL
respectively
and the ferric ion reducing antioxidant power (FRAP) assay value was 318.5 µ
M ascorbic acid equivalent (AAE)/g extract. The rhizome extract showed weak antibacterial activity. This extract showed no adverse toxicity in human keratinocyte (HaCaT) cell lines at concentrations below 200 µ
g/mL.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje