Chitosan, a deacetylated derivative of chitin, has many functional properties that can be used for processing, preservation and as food additive. Chitosan application can be done by edible coatings, direct addition to the batter, and tumbling in the chitosan solution. Chitosan exhibits antioxidant and antimicrobial properties. Here we review applications of chitosan in seafood products and effects on the shelf life of the stored product. Chitosan treatment is effective against two main spoilage factors of seafood: increased oxidation and microbiological spoilage. Chitosan treatment avoids the decrease of sensory scores during storage, and prolongs shelf life of chitosan-treated seafood products.

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壳聚糖在延长海鲜保质期中的作用

壳聚糖是几丁质的脱乙酰衍生物，具有许多功能特性，可用于加工，保存和用作食品添加剂。壳聚糖的施用可以通过食用涂料，直接添加到面糊中以及在壳聚糖溶液中翻滚来完成。壳聚糖具有抗氧化和抗菌性能。在这里，我们回顾了壳聚糖在海鲜产品中的应用以及对储藏产品保质期的影响。壳聚糖处理可有效应对海鲜的两个主要变质因素：增加的氧化和微生物变质。壳聚糖处理避免了贮藏期间感官评分的降低，并延长了经壳聚糖处理的海鲜产品的保质期。