| 摘要 |
PURPOSE:To provide an antimicrobial agent containing extract of ginger rhizome as an active component, exhibiting excellent bacteriostatic and bactericidal activity at a low dose, and useful especially as a preservative additive for foods. CONSTITUTION:The peices or powder of ginger obtained by cutting or grinding the rhizome of ginger, is extracted with a proper solvent such as alcohol, ketone, ester, etc. in hot state, and the extract is used as the active component usually in the form of liquid, and optionally after dispersing in a proper powdery carrier. An antimicrobial activity is attained by the synergistic effect of the pungent taste components of the extract such as zingerone, ginerol, shogaol, zingiberene, etc., the essential oil of ginger, and other minor components. The desirable effect can be achieved without lowering the taste, color, and flavor of the food, by adding about 0.02-0.5% extract to the food. |
