摘要
目的制备壳聚糖(Chitosan,CS)-黑果腺肋花楸多酚(Aronia Melanocarpa Polyphenol,AMP)复合涂膜,以延长冷鲜猪肉的储存期。方法采用交联法制备一种复合涂膜,通过单因素试验探讨不同CS、柠檬酸和AMP质量分数对复合涂膜的成膜时间、水蒸气透过率、透光率和黏聚性的影响,并比较不同复合涂膜的抑菌性能及对冷藏猪肉的保鲜效果。结果CS-AMP复合涂膜的最佳添加比例:壳聚糖为2.20%、柠檬酸为4.20%、AMP为0.18%。按此条件所制得复合涂膜,成膜时间短、水蒸气透过率低、透光率及黏聚性较高,其成膜时间为(4.37±0.52)min、水蒸气透过率为(9.38±0.45)g/(m^(2)·24h)、透光率为(90.20±0.35)%、黏聚性为(1.33±0.15)Pa·s。通过抑菌实验发现,复合涂膜对大肠杆菌的抑制作用达到(12.49±0.25)mm,对金黄色葡萄球菌的抑制作用达到(11.61±0.52)mm。通过冷藏肉保鲜试验发现,加入AMP后,复合涂膜的抑菌效果更明显,显著抑制了猪肉中微生物的繁殖。结论AMP达到一定质量分数时能够改善其成膜时间、水蒸气透过率、透光率和黏聚性,并延迟猪肉腐败。CS-AMP复合涂膜潜在的应用价值为食品包装材料的进一步研究提供了依据。
The work aims to prepare chitosan(CS)-Aronia melanocarpa polyphenol(AMP)composite coating to prolong the storage period of refrigerated pork.A composite coating was prepared by cross-linking method.The effects of different mass fractions of CS,citric acid and AMP on the forming time,water vapor permeability,light transmittance and cohesiveness of the composite coating were investigated by single factor test,and the antibacterial properties of different composite coatings and the preservation effect on refrigerated pork were compared.The optimal addition ratio of CS-AMP composite coating was 2.20%chitosan,4.20%citric acid and 0.18%AMP.The composite coating prepared under this condition had short forming time,low water vapor permeability and high light transmittance and cohesiveness.The forming time was(4.37±0.52)min,water vapor permeability was(9.38±0.45)g/(m^(2)·24 h),light transmittance was(90.20±0.35)%,and cohesiveness was(1.33±0.15)Pa·s.Through bacteriostatic experiments,it was found that its inhibitory effect on Escherichia coli reached(12.49±0.25)mm,and its inhibitory effect on Staphylococcus aureus reached(11.61±0.52)mm.Through the preservation test of refrigerated pork,it was found that after addition of AMP,the antibacterial effect of the composite coating was more obvious,and the microbial reproduction in pork was significantly inhibited.When the AMP reaches certain content,it can improve its forming time,water vapor permeability,light transmittance and cohesiveness,and delay pork spoilage.The potential application value of CS-AMP composite coating provides a basis for further research on food packaging materials.
作者
李芮莹
甘宗勇
王金阳
姜贵全
张卓睿
LI Ruiying;GAN Zongyong;WANG Jinyang;JIANG Guiquan;ZHANG Zhuorui(Forestry College,Beihua University,Jilin Jilin 132013,China;College of Material Science and Engineering,Beihua University,Jilin Jilin 132013,China)
出处
《包装工程》
CAS
北大核心
2024年第17期70-77,共8页
Packaging Engineering
基金
吉林省教育厅项目(JJKH20230069KJ)
吉林省发展和改革委员会产业创新专项资金项目(2023C028-7)。
关键词
黑果腺肋花楸多酚(AMP)
复合涂膜
物理性能
保鲜应用
Aronia melanocarpa polyphenols(AMP)
composite coating
physical property
preservation application
