杨颖,朱增科,郭秀兰,袁腾.含纳米银粒子的壳聚糖季铵盐复合膜在圣女果保鲜中的应用[J].包装工程,2024,45(23):54-63.
YANG Ying,ZHU Zengke,GUO Xiulan,YUAN Teng.Application of Chitosan Quaternary Ammonium Composite Membrane Containing Silver Nanoparticles in the Preservation of Cherry Tomatoes[J].Packaging Engineering,2024,45(23):54-63. |
| 含纳米银粒子的壳聚糖季铵盐复合膜在圣女果保鲜中的应用 |
| Application of Chitosan Quaternary Ammonium Composite Membrane Containing Silver Nanoparticles in the Preservation of Cherry Tomatoes |
| 投稿时间：2024-10-11 |
| DOI：10.19554/j.cnki.1001-3563.2024.23.007 |
| 中文关键词: 银纳米材料 可降解复合膜 抗菌性 水果保鲜 |
| 英文关键词: silver nanomaterials degradable composite membrane antimicrobial properties fruit preservation |
| 基金项目:广东省自然科学基金重点项目(2020B1515120099) |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 目的 将紫薯花青素-银纳米颗粒(PSPA-AgNPs)作为抑菌剂，制备具有抗氧化和抗菌性的可降解复合膜，并探讨其对圣女果的保鲜效果。方法 采用水热法制备PSPA-AgNPs，将其作为抗菌剂加入壳聚糖季铵盐等基质中制备全生物基可降解复合膜;通过复合膜力学性能、阻隔性能、光学特性、抗氧化和抗菌性等指标测定，研究PSPA-AgNPs对复合膜的影响;并以圣女果失重率、硬度、总可溶性固形物含量、可滴定酸含量和维生素C含量为指标，考察复合膜的保鲜效果。结果 PSPA-AgNPs的添加，使得复合膜的阻隔性能、抗氧化性和抗菌性得到明显改善。其中，当PSPA-AgNPs添加量(质量分数)为10%时，复合膜的阻隔性能最佳;当PSPA-AgNPs添加量达到30%时，复合膜抑菌率达99%，增加了1倍;抗氧化活性从29.87%增至50.27%，提高了68.30%。此外，复合膜的保鲜效果可与PE保鲜膜相媲美，能有效减缓圣女果质量、硬度以及营养成分含量下降的速率。结论 Q/S/H-AgNPs复合膜有效提高了圣女果的贮藏品质，延长保质期，具备制备全生物基可降解活性包装材料的潜力。 |
| 英文摘要: |
| The work aims to prepare degradable composite membranes with antioxidant and antibacterial properties by using PSPA-AgNPs as antimicrobial agent and investigate their preservation effects on cherry tomatoes. PSPA-AgNPs was prepared by hydrothermal method and then added into chitosan quaternary ammonium salt and other matrices as antimicrobial agent to prepare fully bio-based degradable composite membranes. The effects of PSPA-AgNPs on the composite membranes were investigated through the determination of mechanical properties, barrier properties, optical properties, antioxidant and antimicrobial properties of the composite membranes. The preservation effects of the composite membranes were examined by taking the weight loss rate, hardness, total soluble solids content, titratable acid content and vitamin C content of the cherry tomatoes as the indexes. The barrier property and antioxidant and antimicrobial properties of the composite membranes were significantly improved with the addition of PSPA-AgNPs. Among them, the barrier property of the composite membranes was the best when the content of PSPA-AgNPs was 10%. The bacterial inhibition rate of the composite membranes reached 99% when the content of PSPA-AgNPs reached 30%, increasing by a factor of 1. The antioxidant activeness increased from 29.87% to 50.27%, which was improved by 68.30%. In addition, the preservation effect of Q/S/H-AgNPs composite membrane was comparable to that of PE preservation membrane, which could effectively slow down the rate of decline in the quality, hardness, and nutrient content of cherry tomatoes. Therefore, the Q/S/H-AgNPs composite membrane effectively improves the storage quality and prolongs the shelf life of the cherry tomatoes, and possesses the potential for the preparation of fully bio-based biodegradable active packaging materials. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501716号