【摘要】 紫草素是从紫草根部提取的多种萘醌类色素的总称。紫草素是一种天然着色剂，兼具抗菌抗氧化等多种药理活性，还具有独特的pH响应特性能呈现不同的颜色变化，本文主要综述了紫草素在食品新鲜度智能指示膜中的应用研究进展。更多还原

【Abstract】 Shikonin is extracted from the roots of Lithospermum.Shikonin is a natural food pigment,which has antibacterial and antioxidant pharmacological activities,and has unique pH responsive characteristics exhibiting different colors.This article mainly reviews the progress of shikonin as food freshness intelligent indicator films in recent years.更多还原