A companion to the United States pharmacopia; . the Pharmacopoeia, page 292. Constituents.—About twenty to twenty-five per cent, yellowish,bland, fixed oil, a proteid called myrosin, and sinalbin. Mustard con-tains no starch. No volatile oil exists in the seeds ; but when theground mustard is mixed with water the sinalbin is broken up (throughthe action of the myrosin) and the so-called volatile oil of mustard isthen formed. 926 A COMPANION TO THE As heat and alcohol coagulate the myrosin, mustard should not bemixed with hot water, nor with spirit. White mustard is inodorous, even when powdere
A companion to the United States pharmacopia; . the Pharmacopoeia, page 292. Constituents.—About twenty to twenty-five per cent, yellowish,bland, fixed oil, a proteid called myrosin, and sinalbin. Mustard con-tains no starch. No volatile oil exists in the seeds ; but when theground mustard is mixed with water the sinalbin is broken up (throughthe action of the myrosin) and the so-called volatile oil of mustard isthen formed. 926 A COMPANION TO THE As heat and alcohol coagulate the myrosin, mustard should not bemixed with hot water, nor with spirit. White mustard is inodorous, even when powdered and mixed withwater ; but it has a sharp, acrid taste. Used mainly as a condiment. Sinapis Nigra; U. S. Black Mustard. Sinapis JVigrce Semina—Schwarzer Sen/, G.; Moutarde noire, F.;Mostaza negra, Sp.; Svart Senap, Sw.; Black Mustard Seed. Origin.—Sinapis nigra, Linne (Cruciferw). Habitat.—Cultivated. Trieste black mustard is usually very hand-some. Part used.—The seeds. Description.—See the Pharmacopoeia, page 292. Only half as. Figs. 513-516.—Black Mustard Seed, a, enlarged ; &, natural size ; c, transverse section,enlarged ; d and e, embryo, enlarged, shown from different sides. large as the white mustard seeds. When ground and moist the blackmustard emits an extremely irritating and offensive odor. The most pungent and acrid mustard plaster is made from blackmustard ; but the best table mustard is obtained from white mustardand black mustard mixed. Constituents.—Fixed oil, about twenty-five per cent.; sinigrin;and myrosin. No starch and no volatile oil. When moistened, theblack mustard at once emits a strong irritant odor, from volatile oil ofmustard formed from the sinigrin through the influence of the myrosinin the presence of the water. Medicinal Uses.—Aromatic stimulant when given internally. Inlarge doses, emetic. Rubefacient externally. Dose.—As an emetic, eight to fifteen grams (£ to i ounce). UNITED STATES PHARMACOPOEIA. 927 SINAPIS
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