Table 2.
Reported remnant activity of PPO and POD in various photo/UV-C irradiated test juices/fluids
| Test juice/fluid | Dose/fluence (mJ/cm2) | PPO activity (remnant) | POD activity (remnant) | References |
|---|---|---|---|---|
| Apple | NC | 99.5 | 97 | Noci et al. (2008) |
| Apple (Sparkling) | NC | 0 | 0 | Falguera et al. (2011) |
| Grape (Dauphine) | NC | 20 | 0 | Falguera et al. (2013) |
| Pear (Flor de Invierno) | NC | 0 | 0 | Falguera et al. (2014) |
| Orange | 58.2 | 75 | 97 | Sampedro et al. (2014) |
| Acetate buffer (pH 4.0) | 58.2 | 31 | 17 | Sampedro et al. (2014) |
| Phosphate buffer (pH 6.8) | 4800 | 10 | NA | Haddouche et al. (2015) |
| Apple (Clear) | 12,483 | 10 | _ | Manzocco et al. (2009) |
| Nectraine Juice | 60 | 40 | Aguilar et al. (2016) | |
| Clear apple juice | 72 | 70 | NA | Akgün and Ünlütürk (2017) |
| Coconut water model solution | NC | 2 | 1 | Augusto et al. (2015) |
| Tiger nuts milk | 4230 | NA | 13.9 | Corrales et al. (2012) |
| Grape | 30.1 kJ/L | 60.9 | NA | Müller et al. (2014) |
| Apple | 30.1 kJ/L | 15.8 | NA | Müller et al. (2014) |
| Apple | 8.1 kJ/L | 86.1 | NA | Gayán et al. (2013) |
| Apple | 1.5 kJ/L | 114.5 | NA | Orlowska et al. (2014) |
| Mango nectar | 108 kJ/L | 19 | NA | Guerrero-Beltran et al. (2006) |
| Coconut water | 400 | 6 | 7 | Current study |
NC not calculated, NA not analyzed