Fabrication of alkali lignin-based emulsion electrospun nanofibers for the nanoencapsulation of beta-carotene and the enhanced antioxidant property
文献类型： 外文期刊
作者： Xiang, Hong-jia 1 ; Zhong, Ai-ling 1 ; Wang, Hong 1 ; Xiao, Ling 1 ; Deng, Tian-ren 1 ; Hu, Teng-gen 2 ; Wen, Peng 1 ;
作者机构： 1.South China Agr Univ, Guangdong Prov Key Lab Food Qual & Safety, Coll Food Sci, Guangzhou 510642, Peoples R China
2.Guangdong Acad Agr Sci, Sericultural&Agri Food Res Inst, Guangdong Key Lab Agr Prod Proc, Key Lab Funct Foods,Minist Agr, Guangzhou 510640, Peoples R China
关键词： Emulsion electrospinning; beta-Carotene; Alkali lignin
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）
ISSN： 0141-8130
年卷期： 2022 年 218 卷
页码：
收录情况： SCI
摘要： For the greater utilization of beta-carotene in antioxidant material, beta-carotene-loaded emulsion stabilized by alkali lignin (AL) was successfully electrospinning with poly (vinyl alcohol) (PVA) (PVA/AL/beta-carotene nanofiber). Transmission electron microscopy demonstrated the core-shell structure of nanofiber with the average diameter being 356.31 nm, and 85.7 % of beta-carotene was effectively encapsulated into the core section. Fourier transform infrared spectra and differential scanning calorimetry revealed the good compatibility and decreased crystallinity of beta-carotene, favoring its stability and solubility, respectively. As expected, the PVA/AL/8-carotene nanofiber exhibited higher antioxidant activity than free beta-carotene due to the protection of AL matrix and the special structure of nanofiber, as the DPPH free radical scavenging rate being 90.7 % at 7th day. The sustained release behavior of beta-carotene and AL from fiber followed Fickian diffusion model, contributing to the greater protection for fish oil than that of emulsion. Thus, this study provides an approach to develop hydrophobic compounds-loaded emulsion electrospun antioxidant material with controlled release property and enhanced activity.
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