Chemical and microbial quality of irradiated ground ginger
1995
Andrews, L.S.
Fresh ground ginger was irradiated with a 10-kGy ionizing radiation dose from a Cobalt-60 source. Gamma radiation decreased most of the extractable volatile flavor components. Those known to contribute to typical ginger flavor, e.g., zingiberene, beta-sesquiphellandrene, beta-bisabolene, farnesene isomers, arcurcumene, and alpha-cubebene, decreased 27-59% following irradiation. Most odors recognized through gas chromatography/olfactometry produced similar patterns from irradiated and nonirradiated samples. The radiation treatment reduced the aerobic microbial population from 10(8) to 10(1) CFU/g. Sensory qualities of flavor, color and odor of ginger powder were similar for treated and untreated ginger.
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