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What are the applications of chitosan in the food field?
Release time:
2024-04-28 16:22
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Chitosan is widely used in the food field, and the following are some of the main applications:
Preservative: Chitosan is widely used in food preservation because of its strong antibacterial and antioxidant properties. In the preservation of fruits and vegetables, chitosan makes use of its good film-forming property to make fruit and vegetable film material, which can prevent the invasion of microorganisms and reduce the decay rate of fruits and vegetables. In meat products, chitosan can prolong the shelf life and enhance the preservation effect through its antibacterial and antioxidant properties.
Edible antibacterial packaging: Chitosan is also successfully used in food packaging due to its film-forming properties, such as cling film and food bags. This packaging material not only has good moisture resistance, but also has biodegradability, which helps to protect the quality of food and reduce environmental pollution.
Thickener and emulsifier: Chitosan can be used as a thickener and stabilizer to improve the stability and taste of food. Chitosan has been approved for use as a food thickener in China.
Fruit juice clarification agent: the application of chitosan in fruit juice clarification is mainly to use its molecular characteristics of positive charge, interact with negatively charged pectin and protein and other substances in fruit juice, destroy the stable structure of colloid, make colloid coagulation, so as to achieve the purpose of clarifying fruit juice through filtration.
Functional food additives: Chitosan or oligo-chitosan can be used as raw materials to be added to health products that regulate blood sugar or blood lipids, and can also be used as additives for weight loss foods.
In general, chitosan has a variety of applications in the food field, which can improve the quality and safety of food in different ways, and also provide new possibilities for the development of the food industry. However, it should be noted that although chitosan has many advantages, its application in food still needs to comply with relevant regulations and standards to ensure the safety and legality of food.
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