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Solar drying of West Indian ginger (Zingiber officinale Roscoe) rhizome using a wire basket dryer

Author

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  • Balladin, D.A.
  • Yen, I.Chang
  • McGaw, D.R.
  • Headley, O.

Abstract

A wire basket dryer (1.8 m × 0.9 × 0.2 m) was used to dry sliced (0.15 cm) West Indian ginger (Zingiber officinale Roscoe) rhizome to an acceptable moisture content of 10.2% (dry weight basis) over a 3 day period. The optimum charge size was 14.97 kg, with a packing density of 462.04 kg m−3 and a specific drying rate of 0.446 h−1. The quantities (determined by high-pressure liquid chromatography) of the main pungent principles (gingerol and shogaol) extracted from fresh, non-steam-distilled solar-dried and steam-distilled solar-dried ginger rhizomes showed increases of 0.068, 0.46 and 0.67 g [per 100 g (dry weight basis)], respectively, with a decrease in the oleoresin quality (reflected in pungency profile) of the same order.

Suggested Citation

  • Balladin, D.A. & Yen, I.Chang & McGaw, D.R. & Headley, O., 1996. "Solar drying of West Indian ginger (Zingiber officinale Roscoe) rhizome using a wire basket dryer," Renewable Energy, Elsevier, vol. 7(4), pages 409-418.
    • Handle: RePEc:eee:renene:v:7:y:1996:i:4:p:409-418
    DOI: 10.1016/0960-1481(95)00137-9
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    1. Balladin, D.A. & Headley, O. & Chang-Yen, I. & Mcgaw, D.R., 1998. "High pressure liquid chromatographic analysis of the main pungent principles of solar dried West Indian ginger (Zingiber officinale Roscoe)," Renewable Energy, Elsevier, vol. 13(4), pages 531-536.
    2. Murthy, M.V. Ramana, 2009. "A review of new technologies, models and experimental investigations of solar driers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(4), pages 835-844, May.
    3. Balladin, D.A. & Headley, O. & Chang-Yen, I. & McGaw, D., 1997. "Extraction and evaluation of the main pungent principles of solar dried West Indian ginger (Zingiber officinale Roscoe) rhizome," Renewable Energy, Elsevier, vol. 12(2), pages 125-130.

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