pH Effect on the Structure, Rheology, and Electrospinning of Maize Zein
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Preparation of Zein Solutions
2.3. Rheology Measurements
2.4. Electrospinning Process
2.5. Morphology of Electrospun Fibers
2.6. Characterization
2.7. Statistical Analysis
3. Results and Discussion
3.1. Rheological Properties
3.2. Conductivity of Solution
3.3. Morphology of Zein
3.4. XRD
3.5. Secondary Structure Analysis
3.6. AFM Analysis
3.7. Water Contact Angle
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Sample | α-Helix (%) | β-Sheet (%) | β-Turn (%) | Random Coil (%) |
---|---|---|---|---|
Pure zein | 17.63 ± 0.30 g | 42.97 ± 0.72 b | 21.00 ± 0.30 a | 18.40 ± 0.15 b |
8:2 film | 19.45 ± 0.11 e | 45.15 ± 0.16 a | 20.95 ± 0.15 a | 14.45 ± 0.11 d |
pH = 4 | 26.74 ± 0.07 b | 36.72 ± 0.08 c | 18.20 ± 0.09 cd | 18.27 ± 0.10 bc |
pH = 5 | 26.16 ± 0.07 c | 35.87 ± 0.10 d | 18.36 ± 0.17 c | 19.62 ± 0.20 a |
pH = 6 | 18.58 ± 0.08 f | 45.47 ± 0.10 a | 17.90 ± 0.12 de | 18.00 ± 0.10 c |
pH = 7 | 28.10 ± 0.20 a | 34.64 ± 0.07 e | 17.82 ± 0.10 e | 19.45 ± 0.24 a |
pH = 8 | 23.38 ± 0.09 d | 36.95 ± 0.12 c | 20.03 ± 0.21 b | 19.64 ± 0.17 a |
pH | 4 | 5 | 6 | 7 | 8 |
---|---|---|---|---|---|
Rq | 140 ± 5.29 | 128.33 ± 6.66 | 78.33 ± 8.25 | 76.53 ± 8.42 | 105.1 ± 17.94 |
Ra | 125.67 ± 5.51 | 111.33 ± 7.23 | 67.4 ± 9.71 | 70.73 ± 8.76 | 97.13 ± 17.06 |
Image Rq | 108 | 107 | 40.5 | 40.9 | 63.7 |
Image Ra | 75 | 69.3 | 19 | 20.7 | 34.4 |
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Wu, Y.; Du, J.; Zhang, J.; Li, Y.; Gao, Z. pH Effect on the Structure, Rheology, and Electrospinning of Maize Zein. Foods 2023, 12, 1395. https://doi.org/10.3390/foods12071395
Wu Y, Du J, Zhang J, Li Y, Gao Z. pH Effect on the Structure, Rheology, and Electrospinning of Maize Zein. Foods. 2023; 12(7):1395. https://doi.org/10.3390/foods12071395
Chicago/Turabian StyleWu, Yuehan, Jinhui Du, Jiahan Zhang, Yanlei Li, and Zhiming Gao. 2023. "pH Effect on the Structure, Rheology, and Electrospinning of Maize Zein" Foods 12, no. 7: 1395. https://doi.org/10.3390/foods12071395