If dextrose is present there results a red, yellow, or green precipitate, depending upon the amount of sugar present.
"The Starvation Treatment of Diabetes"
Lewis Webb Hill Rena S. Eckman
321. Glucose, or invert sugar, the principal member of the second class, consists of two distinct kinds of sugar, -dextrose and levulose.
"An Introduction to Chemical Science"
R.P. Williams
In the porter and ale worts a percentage of dextrose had been added as brewer's sugar.
"A Study Of American Beers and Ales"
L.M. Tolman J. Garfield Riley