Comparison of eugenol and dihydromyricetin loaded nanofibers by electro-blowing spinning for active packaging  

作　　者：Songqi Liu Zaihan Chen Huange Zhang Yuanli Li Taxipalati Maierhaba Jianhui An Zhi Zhou Lingli Deng 

机构地区：[1]College of Biological and Food Engineering,Hubei Minzu University,Enshi,445000,China [2]Turpan Vocational and Technical College,Turpan,838000,China

出　　处：《Food Bioscience》2023年第1期676-686,共11页食品生物科学（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant No.32160610);Incubation Project for High-Level Scientific Research Achievements of Hubei Minzu University(Grant No.4205017).

摘　　要：To explore the dihydromyricetin or eugenol loaded nanofiber’s potential as food active packaging,0%,0.1%,0.5%,and 1.0%dihydromyricetin or eugenol loaded nanofibers were fabricated by electro-blowing spinning,which increased the yield of nanofibers by a factor of 10 times compared to that of traditional electrospinning.The morphology observation by scanning electron microscopy showed similar morphology and diameter distribution of the dihydromyricetin or eugenol nanofibers.Fourier transform infrared spectra analysis indicated that eugenol or dihydromyricetin interacted with proteins through hydrogen bonding.X-ray diffraction profiles of the nanofibers indicated that dihydromyricetin was uniformly distributed within the nanofibers.Nanofibers encapsulated with various concentrations of eugenol or dihydromyricetin showed better barrier properties against water vapors than the free nanofibers,which indicated that the hydrophobic eugenol and dihydromyricetin inhibited the permeation of water molecules through the nanofibers.Tensile tests showed that the nanofibers loaded with 0.5%eugenol or 1.0%dihydromyricetin exhibited relatively higher elastic moduli and lower elongation at break.The nanofibers loaded with dihydromyricetin showed comparable antioxidant activity to that with eugenol in the aspect of ferric and cupper reducing activity,while that with 0.1%-1.0%dihydromyricetin showed superior DPPH radical scavenging activity.Furthermore,both eugenol and dihydromyricetin loaded gelatin/zein nanofibers showed effective antimicrobial activities against Escherichia coli and Staphylococcus aureus.Overall,the dihydromyricetin loaded gelatin/zein nanofibers showed comparable physical and functional properties compared to eugenol,which suggests the application of dihydromyricetin nanofibrous films on food active packaging and the potential application of dihydromyricetin on functional food delivery systems.

关 键 词：Electro-blowing spinning EUGENOL DIHYDROMYRICETIN NANOFIBERS Antimicrobial activities Active packaging 

分 类 号：TB383[一般工业技术—材料科学与工程]