OPTIMIZING THE PROCESSING OF GINGER ESSENTIAL OIL YIELD (Zingiber collinsii) FROM PUMAT NATIONAL PARK OF VIETNAM USING THE RESPONSE SURFACE METHODOLOGY
Keywords:optimization, Zingiber collinsii, Box-Behnken Design, fresh ginger.
In Vietnam, ginger (zingiber) belonging to ginger family (zingiberaceae) is a valuable spice plant. Extraction is the first step of great importance for the recovery and purification of essential oil from plant materials. In this paper, we studied on the factors that affect the process of total essential oil extraction from ginger roots originated from Pu Mat National Park, Nghe An province. The total essential oil yield extraction from ginger roots was optimized using Response Surface Methodology (RSM) with experimental order of Box-Behnken design. The final optimization value for yield of ginger essential oil is at 570 ml water to 100 g sample at 290 minutes of steam distillation using 1.09 mm material thickness size. In this condition, the maximum total essential oil yield was predicted to be 1.23 %.
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