title: Preparation of Zein Fibers Using Solution Blow Spinning Method.
abstract: Zein fibers were successfully fabricated via solution blow spinning (SBS) using acetic acid as solvent. Surface tension, viscosity and modulus of zein solutions were respectively determined by force tensiometer and rheometer. Increases of these properties were observed with an increase of concentration from 20% to 35% (w/w). The fabrication conditions of zein fibers were initially investigated as a function of zein concentration (25% to 35% w/w), feed rate (0.04 to 0.1 mL/min) and air pressure (0.28 to 0.62 MPa). The average fiber diameter (AFD) ranged from 174 to 9595 nm based on scanning electron microscopy (SEM). A Box-Behnken experimental design (BBD) was further performed to identify and quantify the significance of above parameters. The statistical analysis showed that the linear coefficient of concentration, the quadratic term of concentration as well as the interaction between concentration and air pressure were demonstrated statistically significant. Optimal conditions, with an AFD of 138 nm, could be obtained in the SBS of zein fibers by combining a concentration of 23% (w/w), a feed rate of 0.04 mL/min and an air pressure of 0.38 MPa. The moisture sorption capacity of fibers increased slightly as AFD decreased from ∼550 to ∼200 nm, with an increase of BET surface area from 116.5 to 140.0 m2/g.
authors.affiliation: State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ, Wuxi, 214122, People's Republic of China.
authors.forename: Fei
authors.initials: F
authors.lastname: Liu
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Roberto J
authors.initials: RJ
authors.lastname: Avena-Bustillos
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Rachelle
authors.initials: R
authors.lastname: Woods
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Bor-Sen
authors.initials: BS
authors.lastname: Chiou
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Tina G
authors.initials: TG
authors.lastname: Williams
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Delilah F
authors.initials: DF
authors.lastname: Wood
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Cristina
authors.initials: C
authors.lastname: Bilbao-Sainz
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Wallace
authors.initials: W
authors.lastname: Yokoyama
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Glenn
authors.affiliation: Western Regional Research Center, ARS, U.S. Dept. of Agriculture, Albany, Calif, 94710, U.S.A.
authors.forename: Tara H
authors.initials: TH
authors.lastname: McHugh
authors.affiliation: State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ, Wuxi, 214122, People's Republic of China.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhong
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry; D000975:Antioxidants / Q000737:chemistry; D003692:Delayed-Action Preparations / Q000737:chemistry; D005511:Food Handling; D055595:Mechanical Phenomena; D008855:Microscopy, Electron, Scanning; D012212:Rheology; D012996:Solutions; D014783:Viscosity; D015028:Zein / Q000737:chemistry*
chemical_list: D000890:Anti-Infective Agents; D000975:Antioxidants; D003692:Delayed-Action Preparations; D012996:Solutions; D015028:Zein
keywords: Box-Behnken experimental design; solution blow spinning; zein fibers