Stability of Phytochemicals and Antioxidant Properties in Ginger (Zingiber officinale Roscoe) Rhizome with Different Drying Methods

@inproceedings{Chumroenphat2011StabilityOP,
  title={Stability of Phytochemicals and Antioxidant Properties in Ginger (Zingiber officinale Roscoe) Rhizome with Different Drying Methods},
  author={Theeraphan Chumroenphat and Intha Khanprom and Luchai Butkhup},
  year={2011}
}
Effects of drying methods on the stability of phytochemicals and antioxidant properties of ginger (Zingiber officinale) were assessed. The rhizomes were collected at 9 and 12 months after planting and sun-dried, freeze-dried, or oven-dried at 40°, 50°, 60°, or 70° C. Oven drying at 60° C resulted in significant gains of phenolics (441.85 mg.100g−1 d.w), antioxidant activities (78.45 ± 2.04% and 650.45 ± 50.04 μmol Fe (II).g−1 dry extract) of ginger rhizomes at 9 months after planting. Oven… CONTINUE READING