我国科学家研发出水果保鲜涂层，保鲜期普遍延长2至5倍 水果有了可食用“保鲜衣”

Core Viewpoint - A breakthrough in edible fruit preservation technology has been achieved by a research team led by Professor Yang Peng from Shaanxi Normal University, which can extend the shelf life of fresh fruits significantly, with a new coating that keeps strawberries fresh for up to 10 days at room temperature [1][2]. Group 1: Technology Overview - The edible fruit preservation coating is based on a material known as protein amyloid aggregates, inspired by the survival mechanisms of barnacles [2]. - The team developed a new type of film material called ALP (amyloid-like protein) that is more adhesive and biodegradable, enhancing the preservation capabilities of fruits [2][3]. Group 2: Composition and Effectiveness - The ALP coating incorporates safe, edible amino acids, natural polysaccharides, and cellulose, which improve flexibility, adhesion, and provide antibacterial properties [3]. - Testing on 17 types of fruits showed that the ALP coating can extend the shelf life of fruits by 2 to 5 times while preserving their nutritional value, flavor, and texture [3]. Group 3: Environmental and Economic Impact - The ALP coating technology offers significant advantages over traditional cold chain preservation methods, including energy savings and reduced carbon emissions [4]. - The estimated cost of using this preservation technology is approximately 0.65 yuan per kilogram of fruit, with potential for further cost reduction through large-scale production [4].