Production of ginger essence oil on pilot scale by hydrodistillation

Abstract

    This research introduces the hydro-distillation process for a pilot scale equipment. The production of ginger (Zingiber officinale) essence oil  and the effects of several factors (i.e time, temperature, ratio of solid/solvent...) on yield and quality were studied. The quantitative and qualitative analyses of the essence oils were performed by GC/MS and sensory analysis. The ginger essential oil has the optimum yield at 0,4% (compared with fresh material), when extracted in certain conditions (storage time of 4 days , being grinded, material-water ratio of 1:2, distillation time of 150 minutes from first drop, temperature of 130^oC). The result of GCMS was that ginger essence oil has higher levels of major constituents compared to some of the previous publications. The results of test indicated that ginger essence oil  has good qualities which are suitable to the national standards of Vietnam