Novel antimicrobial polyvinyl alcohol film by incorporating β-cyclodextrin/berberine inclusion complex preserving the storage quality of salmon fillets

IF 8.5 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2024-09-17 DOI:10.1016/j.fpsl.2024.101354

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引用次数: 0

Abstract

Antimicrobial packaging film mediated by photodynamic inactivation (PDI) based on biodegradable polymers is promising. The photosensitizer berberine chloride (BBR) was encapsulated into the β-cyclodextrin (CD) to exert its aggregation-induced emission (AIE) property. On this basis, novel PDI-mediated polyvinyl alcohol (PVA) films were fabricated by incorporating the CD/BBR inclusion complex. The PVA/CD/BBR films had high light transmittance (∼70 %) in the visible light range, and possessed good biodegradability with the water absorption of 76 % and water solubility of 31 %. Besides, the films exhibited good mechanical properties with the tensile strength of 62.53 MPa at elongation break of 69.14 %, owing to the formation of hydrogen bonds between the PVA and CD/BBR. The PDI-mediated films were irradiated (14.4 J/cm²) to produce ROS to kill ∼4 log CFU/mL of Listeria monocytogenes and Vibrio parahaemolyticus. In addition, the films potently inactivated native bacteria (0.92 log CFU/g) on salmon fillets after 9 days of storage, and maintained their sensory quality, water holding capacity, and notably, inhibited the chemical changes of salmon fillets to extend the shelf-life for at least 3 days.

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通过加入 β-环糊精/小檗碱包合物的新型抗菌聚乙烯醇薄膜来保持鲑鱼片的贮藏质量

基于可生物降解聚合物的光动力灭活（PDI）介导的抗菌包装膜前景广阔。光敏剂氯化小檗碱（BBR）被包裹在β-环糊精（CD）中，以发挥其聚集诱导发射（AIE）特性。在此基础上，通过加入 CD/BBR 包合物，制造出了新型 PDI 介导的聚乙烯醇（PVA）薄膜。PVA/CD/BBR 薄膜在可见光范围内具有很高的透光率（70%），并且具有良好的生物降解性，吸水率为 76%，水溶性为 31%。此外，由于 PVA 和 CD/BBR 之间形成了氢键，薄膜具有良好的机械性能，拉伸强度为 62.53 兆帕，断裂伸长率为 69.14%。PDI 介导的薄膜经辐照（14.4 J/cm2）产生的 ROS 可杀死 ∼4 log CFU/mL 的单增李斯特菌和副溶血性弧菌。此外，薄膜还能有效灭活储存 9 天后鲑鱼片上的本地细菌（0.92 log CFU/g），并保持其感官质量和持水能力，特别是抑制鲑鱼片的化学变化，延长货架期至少 3 天。

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来源期刊

Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science

CiteScore

14.00

自引率

8.80%

发文量

214

审稿时长

70 days

期刊介绍： Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.