Table 2.
Yields of dried flower petals, resin and pigment from 100 g of fresh flower petals and color values for different pretreatments
| Pretreatment | Dried flower petals (g/100 g) | Resin yield (g/100 g) | Pigment yield (g/100 g) | L * | a* | b* |
|---|---|---|---|---|---|---|
| Control | 5.60 ± 0.02 | 0.48 ± 0.03 (8.7) | 0.09 ± 0.01 (1.7) | 47.9 ± 0.50 | 25.2 ± 0.65 | 50.5 ± 0.24 |
| Citric acid | 4.40 ± 0.01 | 0.33 ± 0.02 (7.5) | 0.09 ± 0.01 (2.0) | 42.5 ± 0.12 | 16.9 ± 0.90 | 37.3 ± 0.60 |
| Sodium Hydroxide | 3.20 ± 0.02 | 0.27 ± 0.04 (8.4) | 0.07 ± 0.01 (2.1) | 40.9 ± 0.18 | 13.4 ± 0.32 | 34.0 ± 0.50 |
| Enzyme | 5.58 ± 0.01 | 0.59 ± 0.01 (10.5) | 0.14 ± 0.02 (2.5) | 39.8 ± 0.12 | 13.1 ± 0.23 | 51.2 ± 0.35 |
All the values are the average of triplicate analysis. The data in the parenthesis are the percentage yield of resin and pigment on the basis of dried flower petals.