Temperature effects on diffusion coefficient for 6-gingerol and 6-shogaol in subcritical water extraction

2014 International Conference on Science & Engineering in Mathematics, Chemistry and Physics

数学;化学;物理学

Anisa, Nor Ilia^1,2 ; Azian, Noor^1,2 ; Sharizan, Mohd^1,2 ; Iwai, Yoshio^3

Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, 54000 Kuala Lumpur, Malaysia^1

Center of Lipids Engineering and Applied Research (CLEAR), Universiti Teknologi Malaysia, 54000 Kuala Lumpur, Malaysia^2

Department of Chemical Systems and Engineering, Kyushu University, Fukuoka 812-8581, Japan^3

关键词: Anti-inflammatories;    Bioactive compounds;    Effect of temperature;    External mass transfer;    Fick's second law;    Inflammatory disease;    Subcritical water extraction;    Zingiber officinale;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/495/1/012009/pdf
DOI  :  10.1088/1742-6596/495/1/012009

来源: IOP

【 摘 要 】

6-gingerol and 6-shogaol are the main constituents as anti-inflammatory or bioactive compounds from zingiber officinale Roscoe. These bioactive compounds have been proven for inflammatory disease, antioxidatives and anticancer. The effect of temperature on diffusion coefficient for 6-gingerol and 6-shogaol were studied in subcritical water extraction. The diffusion coefficient was determined by Fick's second law. By neglecting external mass transfer and solid particle in spherical form, a linear portion of Ln (1-(Ct/Co)) versus time was plotted in determining the diffusion coefficient. 6-gingerol obtained the higher yield at 130°C with diffusion coefficient of 8.582x10-11m2/s whilst for 6-shogaol, the higher yield and diffusion coefficient at 170°C and 19.417 × 10-11m2/s.