Antioxidant activity and total volatile oil content of cassumunar ginger (Zingiber montanum Roxb.) at various rhizome ages

作者：Manochai Benya; Paisooksantivatana Yingyong; Kim Myo Jeong; Hong Jeong Hwa^*

来源：Food Science and Biotechnology, 2007, 16(2): 290-293.

• diphenyl-2-picrylhydrazyl (DPPH)
• radical scavenging activity
• antioxidant
• ethanol extract
• volatile oil
• Cassumunar ginger (Zingiber montanum Roxb.)

Cassumunar ginger (Zingiber montanum Roxb.) was grown in the experimental field at the Department of Horticulture, Kasetsart University, Thailand. The antioxidant activity and volatile oil content of rhizomes of varying age were measured. Antioxidant activity as determined using the DPPH (diphenyl-2-picrythydrazyl) method differed significantly between samples of different ages. Antioxidant activity and rhizome age were positively correlated, with 22-month old rhizomes showing the highest radical scavenging activity (79.19%). Volatile oil was obtained by steam distillation of fresh rhizomes. The extraction yield of volatile oil was highest in 16-month old rhizomes (13.02 mL/kg). GC-FID data indicated the presence of three major compounds, sabinene, terpinen-4-ol, and (E)-1-(3',4'-dimethylphenyl) butadiene (DMPBD), however none of the major components were correlated with the age of rhizome.

• 出版日期2007-4