The simple method helps you to distinguish the dyed millet

The simple method helps you to distinguish the dyed millet
Summary: Fresh millet, there is normal smell of a whiff of millet; The millet after dyeing, the ones that heard dyed the plain smell, such as ginger flavin has Rhizoma Curcumae Longae smell.
On the market of farm produce, have found some millet dyed is being sold. Dye while being what is called, mean the millet goes mouldy, lose edible value, after the speculator rinses it, and then dye yellow pigment, make its color and luster gaudy and yellow, deceive the buyer. People have eaten the yellow rice after this kind of dyeing, will injure the body.
1,Discriminant approach of sense organ
Color and luster: Fresh millet, the color and luster is even, golden yellow, rich in the gloss; The millet after dyeing, the color and luster is deep yellow, lack the gloss, it looks that grains of color and luster are the same.
Smell: Fresh millet, there is normal smell of a whiff of millet; The millet after dyeing, the ones that heard dyed the plain smell, such as ginger flavin has Rhizoma Curcumae Longae smell.
Wash: Fresh millet, while washing with the warm water, color of water is not yellow; The millet after dyeing, while washing with the warm water, color of water shows yellow.
2,Chemical discriminant approach
Fetch 25 grams of samples to put into mortar, add anhydrous ethanol of 25 ml, grind, fetch it and hang 25 ml of turbid liquid, locate in than in the color tube, then add 10% hydrogen and oxidize 2 ml of sodium, shake evenly, it is put for a moment that quiet, observe the color to change, if is orange, prove the millet is dyed with flavin of ginger.
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