Table 3.
Antioxidant activity of plant-mediated zinc oxide nanoparticles.
| Plant Name | Description | Concentration | Maximum Activity | Results | Reference |
|---|---|---|---|---|---|
| Polygala tenuifolia | Root | 1 mg·mL−1 | 45.47% | Moderate antioxidant activity by scavenging DPPH free radical | Nagajyothi et al. [17] |
| Cassia fistula | Leaf | 2853 µg·mL−1 | 50% | Inhibiting DPPH free radical scavenging activity | Suresh et al. [76] |
| Artocarpus gomezianus | Fruit | 10.8 mg·mL−1 | 50% | Inhibiting DPPH free radical scavenging activity | Suresh et al. [77] |
| Rosa canina | Fruit | 0.2 mg·mL−1 | >90% | DPPH free radical scavenging attribute | Jafarirad et al. [57] |
| Azadirachta indica | Leaf | 8355 μg·mL−1 | 92% | Inhibiting DPPH free radical scavenging activity | Madan et al. [36] |
| Heritiera fomes and Sonneratia apetala | Bark and leaf | 53.64 μg·mL−1 | 50% | Strong DPPH free radical scavenging potential | Thatoi et al. [16] |
| Citrullus colocynthis | Fruit, seed and pulp | 0.22 mg·mL−1 (Fruit), 0.29 mg·mL−1 (Seed) and 0.26 mg·mL−1 (Pulp) | 50% | Inhibiting DPPH free radical scavenging activity | Azizi et al. [80] |
| Ceropegia candelabrum | Leaf | 95.09 μg·mL−1 | 55.43% | DPPH free radical scavenging activity | Murali et al. [5] |
| Azadirachta indica, Hibiscus rosa-sinensis, Murraya koenigii, Moringa oleifera and Tamarindus indica | Leaf | 11.03–31.51 µg·mL−1 (ABTS), 11.49–37.8 µg·mL−1 (DPPH), 23.31–45.9 µg·mL−1 (hydroxyl), 24.4–53.2 µg·mL−1 (superoxide) and 31.4–58.4 µg·mL−1 (hydrogen peroxide) | 50% | Inhibition of ABTS, DPPH, hydroxyl, superoxide and hydrogen peroxide radical scavenging activities | Rehana et al. [22] |
| Eucalyptus globulus | Leaf | 46.62 μg·mL−1 | 82% | DPPH free radical scavenging inhibition | Siripireddy and Mandal [83] |
| Andrographis paniculata | Leaf | 500 μg·mL−1 | 61.32% | DPPH free radical scavenging inhibition | Rajakumar et al. [34] |
| Mangifera indica | Leaf | 30 μg·mL−1 | 65% | DPPH free radical scavenging activity | Rajeshkumar et al. [65] |
| Coccinia abyssinica | Tuber | 127.74 μg·mL−1 | 50% | DPPH free radical scavenging activity | Safawo et al. [117] |
| Kalanchoe pinnata | Leaf | 700 μg·mL−1 | 50% | Reduce DPPH free radical scavenging capacity | Agarwal and Shanmugam [21] |
| Berberis aristata | Leaf | 3.55 μg·mL−1 | 50% | DPPH free radical scavenging activity | Chandra et al. [118] |
| Trianthema portulacastrum | Plant | 500 μg·mL−1 | 75% | Efficient DPPH free radical inhibition | Khan et al. [39] |
| Tecoma castanifolia | Leaf | 100 μg·mL−1 | 67% | DPPH free radical scavenging activity | Sharmila et al. [132] |
| Scutellaria baicalensis | Root | 1000 µg·mL−1 | 56.11% | Scavenging DPPH free radicals | Tettey and Shin [70] |
| Albizia lebbeck | Stem bark | 48.5 µg·mL−1 | 50% | Showed the concentration dependent effect in hydrogen peroxide (H2O2) free radical scavenging activity | Umar et al. [26] |
| Costus igneus | Leaf | 100 μg·mL−1 | 75% | DPPH free radical scavenging activity | Vinotha et al. [33] |
| Sambucus ebulus | Leaf | 43 µg·mL−1 | 50% | Exhibited hydrogen peroxide (H2O2) free radical scavenging activity | Alamdari et al. [124] |
| Mussaenda frondosa | Leaf, stem and leaf-derived callus | 824 µg·mL−1 (Leaf), 752 µg·mL−1 (Stem) and 857 µg·mL−1 (Callus) | 50% | Quenching the DPPH free radical scavenging | Jayappa et al. [97] |
| Aegle marmelos | Juice | 5.75–6.78 mg·mL−1 (DPPH), 4.45–5.05 mg·mL−1 (ABTS) and 7.86–9.05 mg·mL−1 (Superoxide) | 50% | ABTS cation radical, DPPH free radical, and superoxide anion radical scavenging activities | Mallikarjunaswamy et al. [98] |
| Zea mays, Artocarpus heterophyllus and Punica granatum | Husk (Z. mays) and peel (A. heterophyllus and P. granatum) | 395.2 µg·mL−1 (P. granatum) | 50% | Inhibitory of DPPH radical scavenger | Quek et al. [31] |
| Myristica fragrans | Fruit | 400 μg·mL−1 | 82.12 TEAC (ABTS); 66.3% FRSA (DPPH); 71.1 μg AAE/mg (TAC); 63.41 μg AAE/mg (TRP) | Excellent free radical scavenging activities (ABTS, DPPH, TAC and TRP) | Faisal et al. [11] |
Note: ABTS—2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt, DPPH—2,2-diphenyl-1-picrylhydrazyl, TAC—total antioxidant capacity, TRP—total reduction power, and FRSA—free radical scavenging assay.