Incorporation of Tannic Acid in Food-Grade Guar Gum Fibrous Mats by Electrospinning Technique

Autor: Ana M.M. Sousa, Jiang Jianan, Min Zhang, Sherri Pontious, Weiqiao Yang, Xihong Li, LinShu Liu, Qiang Zhao
Rok vydání: 2018
Předmět:
Zdroj: Polymers
Volume 11
Issue 1
Polymers, Vol 11, Iss 1, p 141 (2019)
ISSN: 2073-4360
Popis: The use of polysaccharides to produce functional micro- or nanoscale fibrous mats has attracted growing interest for their food-grade applications. In this study, the characterization and electro-spinnability of guar gum (GG) solutions loaded with tannic acid (TA) was demonstrated. Food-grade antioxidant materials were successfully produced by electrospinning while incorporating different loads of TA into GG fibers. Bead-free GG-TA fibers could be fabricated from GG solution (2 wt %) with 10 wt % TA. Increasing the amount of TA led to fibers with defects and larger diameter sizes. Fourier Transformed Infrared Spectroscopy and X-ray Diffraction of neat GG and TA loaded GG fibrous mats suggested that inclusion of TA interrupted the hydrogen bonding and that a higher density of the ordered junction zones formed with the increased TA. The high TA incorporation efficiency and retained antioxidant activity of the fibrous mats afford a potential application in active edible film or drug delivery system.
Databáze: OpenAIRE