Encapsulation of tea polyphenols into high amylose corn starch composite nanofibrous film for active antimicrobial packaging

被引:28
|
作者
Chen, Lei [1 ]
Wu, Fen [1 ]
Xiang, Ming [1 ]
Zhang, Wenna [1 ]
Wu, Qingxi [1 ]
Lu, Yongming [1 ]
Fu, Jiajun [1 ]
Chen, Meilu [1 ]
Li, Songnan [3 ]
Chen, Yan [1 ]
Du, Xianfeng [2 ]
机构
[1] Anhui Univ, Sch Life Sci, Anhui Key Lab Ecol Engn & Biotechnol, Hefei 230601, Peoples R China
[2] Anhui Agr Univ, Sch Tea & Food Sci & Technol, State Key Lab Tea Plant Biol & Utilizat, Hefei 230036, Peoples R China
[3] Yangzhou Univ, Inst Agr Sci & Technol Dev, Joint Int Res Lab Agr & Agriprod Safety, Minist Educ China, Yangzhou 225009, Peoples R China
关键词
Tea polyphenols; High amylose corn starch; Nanofibrous film; ESCHERICHIA-COLI; ELECTROSPUN; FABRICATION; RELEASE; ANTIBACTERIAL; NANOPARTICLES; KINETICS; SYSTEM;
D O I
10.1016/j.ijbiomac.2023.125245
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Starch-based composite nanofibrous films loaded with tea polyphenols (TP) were successfully fabricated through electrospinning high amylose corn starch (HACS) with aid of polyvinyl alcohol (PVA), referred as HACS/ PVA@TP. With the addition of 15 % TP, HACS/PVA@TP nanofibrous films exhibited enhanced mechanical properties and water vapor barrier capability, and their hydrogen bonding interactions were further evidenced. TP was slowly released from the nanofibrous film and followed Fickian diffusion mechanism, which achieved the controlled sustained release of TP. Interesting, HACS/PVA@TP nanofibrous films effectively improved antimicrobial activities against Staphylococcus aureus (S. aureus) and prolonged the shelf life of strawberry. HACS/ PVA@TP nanofibrous films showed superior antibacterial function by by destroying cell wall and cytomembrane, and degrading existing DNA fragments, stimulating excessive intracellular reactive oxygen species (ROS) generation. Our study demonstrated that the functional electrospun Starch-based nanofibrous films with enhanced mechanical properties and superior antimicrobial activities were potential for the application in active food packaging and relative areas.
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页数:20
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