Polysaccharide-based pH-responsive intelligent halochromic food packaging materials: A review

Key Points

• This review aims to summarize the developments in polysaccharide-based pH-responsive food packaging that signal food spoilage.
• Analyzing recent research on polysaccharide characteristics and applications.
• Reviewing various types of pH-responsive materials and their mechanisms.
• Examining the effectiveness of these materials in food packaging.
• Polysaccharides demonstrate effective color change in response to pH shifts.
• Halochromic properties enhance the detection of food spoilage.
• Research indicates potential for improved food safety with these materials.