The kinetics of extraction of the medicinal ginger bioactive compounds using hot compressed water

Mohd Sharizan Md Sarip, Noor Azian Morad, Nor Azah Mohamad Ali, Yasmin Anum Mohd Yusof, Mohd Azizi Che Yunus

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Zingiber officinale or ginger known for its high medicinal compounds is extracted using hot compressed water (HCW). The two most important bioactive compounds namely 6-gingerol and 6-shogaol in the ginger extracts are analyzed using HPLC. The effects of temperature and time of extraction on 6-gingerol and 6-shogaol are studied using HCW extraction. It is found that HCW extraction can extract these two bioactive compounds; 6-gingerol at 130 C and 30 min whilst 6-shogaol at 170 C and 20 min. This finding shows that HCW extraction is potentially used in selective extraction of bioactive compounds at different conditions of HCW. The kinetics of extraction for both bioactive compounds is studied from the optimum temperatures obtained. The overall mass transfer coefficient which represents the extraction efficiency is calculated using mass transfer model. The optimum values of the overall mass transfer coefficient (k) for 6-gingerol is 8 × 10-7 m/s at 130 C whilst for 6-shogaol, is 18 × 10-7 m/s at 170 C using HCW extraction. The relationship between the overall mass transfer coefficient and the dielectric constant of various solvents for 6-gingerol is identified. Similar relationship is identified for 6-shogaol using HCW as solvent. The dielectric constant does not contribute to the extraction efficiency of 6-gingerol and 6-shogaol.

Original languageEnglish
Pages (from-to)141-147
Number of pages7
JournalSeparation and Purification Technology
Volume124
DOIs
Publication statusPublished - 18 Mar 2014

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Kinetics
Water
Mass transfer
Permittivity
shogaol
gingerol
Temperature

Keywords

  • 6-Gingerol
  • 6-Shogaol
  • Hot compressed water
  • Kinetics
  • Mass transfer model

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

Cite this

The kinetics of extraction of the medicinal ginger bioactive compounds using hot compressed water. / Md Sarip, Mohd Sharizan; Morad, Noor Azian; Mohamad Ali, Nor Azah; Mohd Yusof, Yasmin Anum; Che Yunus, Mohd Azizi.

In: Separation and Purification Technology, Vol. 124, 18.03.2014, p. 141-147.

Research output: Contribution to journalArticle

Md Sarip, Mohd Sharizan ; Morad, Noor Azian ; Mohamad Ali, Nor Azah ; Mohd Yusof, Yasmin Anum ; Che Yunus, Mohd Azizi. / The kinetics of extraction of the medicinal ginger bioactive compounds using hot compressed water. In: Separation and Purification Technology. 2014 ; Vol. 124. pp. 141-147.
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