TABLE 2.
Application of electrospinning in intelligent packaging containing pH‐based indicators
| Indicator | Concentration of indicator | Polymer | Solvent |
Processing conditions |
Average diameter (nm) |
References |
|---|---|---|---|---|---|---|
| Red cabbage | 15% w/v | Chitosan/ polyvinyl alcohol | Distilled water | 15 kV, 6 ml/hr, 15 cm | ‐ | Jung et al. (2019) |
| Red cabbage | 30% w/v | Zein | Ethanol (75% v/v) | 16 kV, 1 ml/hr, 16 cm | 444–510 | Prietto et al. (2018) |
|
Phycocyanin (microalgae) |
9% w/v 3% w/v |
Poly lactic acid poly ethylene oxide |
Chloroform: Dimethylformamide (9:1 v/v) | 15 kV, 0.6 ml/hr,14 cm | 921–1318 | Moreira, Terra, Costa, and de Morais (2018) |
| Red cabbage | 10% w/v | Polyvinyl acohol | – | 10,15, 20, 25 kV, 0.5, 0.7, 1, 1.5, 2 ml/hr, 10, 15, 20 cm | 255–749 | Maftoonazad and Ramaswamy (2019) |
| Açaí fruit |
11% w/v 6% w/v |
Polycaprolactone polyethylene oxide | Chloroform/ methanol (3:1 v/v) | 20 kV, 0.6 ml/hr, 12.5 cm | 1635 | da Silva, da Silveira Mastrantonio, Costa, and de Morais (2019) |