Temperature effects on diffusion coefficient for 6-gingerol and 6-shogaol in subcritical water extraction
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-...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Physics Publishing (IOP)
2014
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/62824/1/NoorAzianMorad2014_TemperatureEffectsonDiffusionCoefficient.pdf http://eprints.utm.my/id/eprint/62824/ http://dx.doi.org/10.1088/1742-6596/495/1/012009 |
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| Summary: | 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 130oC with diffusion coefficient of 8.582x10-11 m2/s whilst for 6-shogaol, the higher yield and diffusion coefficient at 170oC and 19.417 x 10-11 m2/s. |
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