“紫罗兰青菜”水煮后水变色了？

Core Viewpoint - The recent consumer concerns regarding the color change of "Purple Violet Cabbage" during cooking are clarified by experts, indicating that the color change is due to the presence of anthocyanins, which are safe to consume [1][2]. Group 1: Product Information - The "Purple Violet Cabbage" is a new product available on the Hema app, priced at 7.99 yuan for 300 grams [1]. - The product is marketed with labels highlighting its high anthocyanin content and enhanced sweetness when boiled [1]. Group 2: Scientific Explanation - Anthocyanins are water-soluble natural pigments that can change color in different pH environments; they turn red in acidic conditions and blue in alkaline conditions [2][3]. - The color change during cooking is a normal physical and chemical reaction due to the sensitivity of anthocyanin molecular structure to temperature and pH [1][2]. Group 3: Health Benefits and Trends - Consuming plants rich in anthocyanins is beneficial for health, providing antioxidant properties and other advantages [2]. - The variety of purple vegetables has expanded beyond traditional options like eggplants and purple cabbage to include new varieties such as purple cauliflower and purple corn, developed by agricultural research institutions [2].