Table 1. Changes in the CIE L*, a*, and b* values of fresh-cut lettuce treated with different thymine extract during storage

Storage period(day) Color value Treatment1)
Cont TEA TEB TEC TED
0 L* 69.50±4.04a2) 69.50±5.78a 69.50±2.96a 69.57±3.86a 69.41±3.71a
a* -1.99±0.38a -2.03±0.51a -1.98±0.58a -1.94±0.44a -2.11±0.31a
b* 4.97±0.97a 5.13±1.04a 4.98±1.12a 5.14±0.97a 5.03±2.39a
1 L* 68.40±3.96a 68.46±4.90a 68.12±5.24a 68.08±6.63a 68.41±7.85a
a* -2.19±0.80a -2.20±0.69a -2.13±0.41a -2.14±0.31a -2.03±1.02a
b* 4.91±1.72a 4.99±1.68a 4.90±1.02a 4.92±0.82a 5.06±2.36a
3 L* 64.44±4.95a 66.00±2.56a 67.10±1.83a 67.15±2.56a 65.60±5.73a
a* -2.55±0.76a -1.20±1.03a -2.09±0.25a -1.95±0.72a -2.24±0.41a
b* 6.52±1.57a 4.84±2.79a 5.38±0.77a 5.26±1.31a 5.67±1.36a
5 L* 59.97±5.27c 62.96±4.53abc 65.87±4.62a 64.00±3.86ab 60.57±4.61bc
a* -1.68±0.75a -1.74±0.62a -1.79±0.66a -1.86±0.46a -1.94±0.33a
b* 5.31±1.52a 5.16±0.93a 5.11±1.25a 4.96±0.69a 5.11±0.67a
7 L* 58.92±5.62c 62.30±2.91abc 65.61±5.66a 63.20±6.78ab 61.33±2.25bc
a* -0.28±2.19a -0.36±1.48a -0.91±1.28a -0.76±1.58a -0.16±1.69a
b* 10.55±4.42a 8.86±3.34ab 7.25±2.98b 8.48±2.86ab 10.33±4.33a
1)Cont, distilled water; TEA, 0.001% (w/v) thyme extract; TEB, 0.005% (w/v) thyme extract; TEC, 0.01% (w/v) thyme extract; TED, 0.05% (w/v) thyme extract.
2)Value represent means±SD (n=15). Different letters in the same row indicate significant statistical difference (p<0.05) by Duncan’s multiple range test.