Table 4.
Selection of studies focusing on total anthocyanin content (TAC) in various rice cultivars. The anthocyanin quantification method and assay used for antioxidant potential are also listed.
| Rice Colour | Rice Variety | TAC (mg/kg Kernel Weight) | TAC Measurement | Antioxidant Potential | Total Phenolic Content |
|---|---|---|---|---|---|
| Purple | GPNO 20,175 [49] | 68 ± 29 | Spectrophotometer | 98 µmol TE/g bran (ORAC) | 6 mg GAE/g bran |
| Purple | Hung Hsien Ju PI 16,097 [49] | 151 ± 25 | Spectrophotometer | 174 µmol TE/g bran (ORAC) | 12 mg GAE/g bran |
| Purple | Hung Tsan [49] | 199 ± 36 | Spectrophotometer | 147 µmol TE/g bran (ORAC) | 11 mg GAE/g bran |
| Purple | IAC600 [51] | 4700 | Spectrophotometer | 101 µmol TE/g (ORAC) | 6 mg GAE/g |
| Red | SB7 [50] | 0 | pH Differential | 75 µmol TE/g (ORAC) | 1 mg GAE/g |
| Red | Red [28] | 94 ± 1 | Spectrophotometer | n.d. | n.d. |
| Black | Asamurasaki [52] | 1400 ± 41 | HPLC | n.d. | n.d. |
| Black | Asamurasaki [53] | 474 | HPLC | 65 mmol TE/g DW (ORAC) | n.d. |
| Black | Okunomurasaki [53] | 80 | HPLC | 55 mmol TE/g DW (ORAC) | n.d. |
| Black | Longjin 01 [54] | 5101 ± 79 | pH Differential | 1138 mmol TE/g DW (ORAC) | 4766 mg GAE/100 g DW |