In this manuscript,the effect of chitin nanowhisker (CNW)/polylactic acid (PLA) nanofiber film on the preservation of strawberries was investigated. The decay index,weight loss, titratable acidity content and VC content of strawberries packaged with CNW/PLA nanofiber films were determined and compared,and the results indicated that CNW/PLA nanofiber film could decrease the decay index and weight loss, and delay the decline of titratable acidity and vitamin C contents. Furthermore, CNW/PLA nanofiber film exhibited strong antisepsis preservation on the strawberries.%采用静电纺丝法,制备一种具有良好保鲜作用的甲壳素纳米晶须/聚乳酸(CNW/PLA)纳米纤维膜,分别用PE保鲜膜、纯PLA纳米纤维膜及CNW/PLA纳米纤维膜对草莓进行包装处理,并在贮藏期间,观察草莓的外观变化,测定其腐烂指数、失重率、可滴定酸含量及维生素C质量分数的变化来比较各种包装材料对草莓保鲜效果的影响.结果表明:CNW/PLA纳米纤维膜可在一定程度上延缓草莓的失重、抑制可滴定酸质量分数及维生素C质量分数的下降,具有显著的抗菌保鲜效果.
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