Effects of poly(butylene adipate-co-terephthalate)/TiO2 nanocomposite antimicrobial films on chilled pork quality,Packaging Technology and Science

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Effects of poly(butylene adipate-co-terephthalate)/TiO2 nanocomposite antimicrobial films on chilled pork quality
Packaging Technology and Science ( IF 2.8 ) Pub Date : 2021-08-09 , DOI: 10.1002/pts.2605
Ping Zhang ₁ , Shuangling Luo ₂ , De Gao ₂

Affiliation

In this study, different packaging materials—commercially available polyethylene (PE) freezer bag, poly(butylene adipate-co-terephthalate) (PBAT) film and PBAT nanocomposite antimicrobial films—were tested for optimum cold storage (4 ± 1°C) of pork. The pork samples wrapped with the PBAT nanocomposite films showed significantly lower aerobic plate count (APC), sensory score decline, drip loss and water activity compared to the PE- or PBAT-wrapped samples after the same cold storage duration. In addition, PBAT nanocomposite films slowed the increase in pH value, and total volatile basic nitrogen (TVB-N) content of the samples during cold storage extended the shelf life of chilled pork by 12–15 days by inhibiting surface microbial growth.

中文翻译：

聚（己二酸丁二醇酯-共对苯二甲酸酯）/TiO2纳米复合抗菌薄膜对冷冻猪肉品质的影响

在这项研究中，测试了不同的包装材料——市售的聚乙烯 (PE) 冷冻袋、聚（己二酸丁二醇酯-共对苯二甲酸酯）（PBAT）薄膜和 PBAT 纳米复合抗菌薄膜——以实现最佳冷藏 (4 ± 1°C)猪肉。在相同的冷藏时间后，与 PE 或 PBAT 包裹的样品相比，用 PBAT 纳米复合薄膜包裹的猪肉样品显示出显着较低的需氧菌落数 (APC)、感官评分下降、滴水损失和水分活度。此外，PBAT 纳米复合薄膜减缓了 pH 值的增加，冷藏过程中样品的总挥发性碱性氮 (TVB-N) 含量通过抑制表面微生物生长将冷冻猪肉的保质期延长了 12-15 天。

更新日期：2021-08-09

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