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| RWF | 5% UYF | 10% UYF | 15% UYF | 20% UYF | 5% FYF | 10% FYF | 15% FYF | 20% FYF |
Day 0 | L* | 79.78a | 77.73ab | 76.95ab | 76.50b | 76.38b | 75.99b | 69.16c | 67.67c | 63.36d |
a* | 0.26e | 0.42e | 0.09ef | −0.36fg | −0.56g | 1.98d | 3.33c | 3.93b | 4.91a | |
b* | 18.09bc | 20.34ab | 21.97a | 22.37a | 22.77a | 18.44b | 18.61bc | 17.51bc | 17.45c | |
Day 1 | L* | 78.34a | 77.60a | 77.44a | 77.94a | 76.95a | 73.46b | 69.93c | 66.70d | 63.36e |
a* | 0.15e | 0.21e | −0.01ef | −0.29ef | −0.55f | 2.30d | 3.35c | 4.13b | 5.05a | |
b* | 21.13ab | 21.01ab | 22.21a | 21.59ab | 22.31a | 20.20ab | 19.43bc | 17.35c | 17.44c | |
Day 2 | L* | 77.32bc | 78.89a | 77.60b | 78.49ab | 76.39c | 73.46d | 68.60e | 67.14f | 63.21g |
a* | 0.41e | −0.18f | −0.23f | −0.52f | −0.52f | 2.34d | 3.48c | 4.02b | 5.06a | |
b* | 21.55b | 20.76bc | 22.52ab | 20.74bc | 23.54a | 19.67cd | 18.43de | 17.28e | 17.50e | |
Day 5 | L* | 78.33a | 78.38a | 76.82bc | 77.40ab | 75.95c | 73.84d | 68.63e | 67.20f | 64.26g |
a* | 0.01d | −0.06d | −0.20d | −0.57e | −0.23de | 2.07c | 3.84b | 4.14b | 4.71a | |
b* | 21.00c | 20.91c | 22.85ab | 21.40bc | 23.31a | 20.08c | 20.33c | 17.67d | 17.09d | |
Day 7 | L* | 77.84ab | 78.34a | 76.60ab | 77.29ab | 75.96b | 72.89c | 68.51d | 68.23d | 63.88e |
a* | 0.12d | 0.04de | 0.08d | −0.15de | −0.49e | 2.38c | 3.72b | 4.17b | 4.95a | |
b* | 20.83bc | 20.70c | 22.65ab | 21.52bc | 23.44a | 19.85cd | 18.09de | 17.81e | 16.92e |