Regarding GINGER....?

If I grate or chop or generally break down a piece of ginger root I just bought and put the pieces into a baggie in the freezer, will it still retain all the nutritional benefits frozen, just as if I used it fresh ? Invariably I never need the whole root piece when I buy it and would like to have it "on hand/frozen" for further use knowing that it has not lost its nutritional value. Can anyone help me with this ?.. .....thanks.....Judy in Pittsburgh