Comparison of eugenol and dihydromyricetin loaded nanofibers by electro-blowing spinning for active packaging
Comparison of eugenol and dihydromyricetin loaded nanofibers by electro-blowing spinning for active packaging
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DOI：
10.1016/j.fbio.2022.102294
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发表时间：
2022-12-13
期刊：
影响因子：
5.2
通讯作者：
Deng，Lingli
中科院分区：
文献类型：
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作者：
Liu，Songqi;Chen，Zaihan;Deng，Lingli
为了探索负载二氢杨梅素或丁香酚的纳米纤维作为食品活性包装的潜力，通过电吹纺丝制备0%、0.1%、0.5%和1.0%负载二氢杨梅素或丁香酚的纳米纤维，与传统电纺丝相比，其将纳米纤维的产率提高了10倍。扫描电子显微镜的形态观察显示二氢杨梅素和丁香酚纳米纤维的形态和直径分布相似。傅里叶变换红外光谱分析表明丁香酚和二氢杨梅素与蛋白质之间通过氢键作用。纳米纤维的X射线衍射图谱表明，二氢杨梅素均匀分布在纳米纤维内。包封有不同浓度的丁香酚或二氢杨梅素的纳米纤维显示出比游离纳米纤维更好的对水蒸气的阻隔性能，这表明疏水性丁香酚和二氢杨梅素抑制水分子通过纳米纤维的渗透。拉伸测试表明，0.5%丁香酚或1.0%二氢杨梅素负载的纳米纤维具有相对较高的弹性模量和较低的断裂伸长率。负载二氢杨梅素的纳米纤维在铁和铜还原活性方面与丁香酚相当，而负载0.1%-1.0%二氢杨梅素的纳米纤维具有较好的上级DPPH自由基清除活性。此外，丁香酚和二氢杨梅素负载的明胶/玉米醇溶蛋白纳米纤维对大肠杆菌和金黄色葡萄球菌均表现出有效的抗菌活性。总的来说，二氢杨梅素负载的明胶/玉米醇溶蛋白纳米纤维显示出与丁香酚相当的物理和功能特性，这表明二氢杨梅素纳米纤维膜在食品活性包装上的应用以及二氢杨梅素在功能性食品递送系统上的潜在应用。
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 againstEscherichia coliandStaphylococcus 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.