It shall be unlawful to sell in this state barley, oats or other grains bleached with sulphur fumes whereby damage or inferiority has been concealed or water has been added, and such barley, oats or other grains shall be subject to seizure for confiscation by writ of attachment for condemnation as provided for in this chapter; provided, that barley, oats or other grains bleached by sulphur fumes may be sold in Alabama under such rules and regulations as may be adopted by the State Board of Agriculture and Industries in cases where the bleaching does not conceal damage or inferiority or water has not been added, when the product is plainly and distinctly labeled, "bleached with sulphur fumes."