Fast-dissolving antioxidant nanofibers based on Spirulina protein concentrate and gelatin developed using needleless electrospinning

作     者：Vahid Mosayebi Milad Fathi Mohammad Shahedi Nafiseh Soltanizadeh Zahra Emam-Djomeh 

作者机构：Department of Food Science and TechnologyCollege of AgricultureIsfahan University of TechnologyIsfahan***Iran Department of Food Science and EngineeringCollege of Agriculture & Natural ResourcesUniversity of TehranKarajIran 

出 版 物：《Food Bioscience》 (食品生物科学（英文）)

年 卷 期：2022年第47卷第3期

页      面：1281-1293页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：Antioxidant activity Biopolymers Nanoencapsulation Rheology Spirulina Microalga 

摘      要：Spirulina is a microalga that is well-known for its high protein content and biological activities directly related to its antioxidant *** objective of this study was to produce fast-dissolving antioxidant nanofibers based on Spirulina protein concentrate (SPC) and gelatin using needleless electrospinning *** effect of mixing ratios of SPC (10% w/w) and gelatin (20% w/w) on the viscosity,electrical conductivity and surface tension of electrospinning solutions as well as diameter and morphology of resulting nanofibers was *** the SPC level in the solution blends resulted in a decrease in apparent viscosity and electrical conductivity and an almost stable trend in surface tension (29.25–32.19 mN/m) that led to diminish of diameter of the *** electron microscopy images showed that SPC/gelatin ratio of 40:60 led to the production of uniform and bead-free nanofibers with a relatively smaller average diameter (208.7 ± 46.5 nm).Atomic force microscopy images indicated mesh-like,fibrillary,and bead-free *** transform infrared spectroscopy verified the formation of composite nanofibers and intermolecular interactions between both proteins.X-ray diffraction and thermal analysis showed higher amorphous structure and stability of produced SPC/gelatin nanofibers in comparison to pure materials which was favorable for formation of stable fast-dissolving *** of DPPH and ABTS radical scavenging activities showed that the antioxidant activity of composite nanofibers significantly improved with increasing SPC mixing ratio (p 0.05).The dissolution test demonstrated that SPC/gelatin nanofibers can be rapidly dissolved in aqueous medium within 2 ***,the results indicated that the electrospun SPC/gelatin nanofibers could be potentially used for nutraceutical delivery in food and packaging applications under high humidity.