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. 2022 Aug 12;10:954835. doi: 10.3389/fchem.2022.954835

TABLE 6.

Concentrations of rosmarinic acid, carnosol, carnosic acid, and caffeic acid (mg of compound/g rosemary) in the biphasic systems, varying the UAE S:L ratio (1:20, 1:30, and 1:40) and temperature (40°C and 60°C). Results are expressed as mean ± SD. Statistically significant differences between the ratios (1:20, 1:30, and 1:40) in each system for each compound are represented by letters. Different letters indicate significant differences within each system.

Systems 40°C 60°C
Compounds 1:20 1:30 1:40 1:20 1:30 1:40
1 La:Glu (5:1) Rosmarinic acid 0.21 ± 0.13a 0.26 ± 0.10a 0.08 ± 0.02a 1.00 ± 0.12a 0.58 ± 0.09a 0.39 ± 0.06a
Carnosol 0.27 ± 0.12a n.d. n.d. 0.32 ± 0.02a 0.31 ± 0.06a 0.26 ± 0.13a
Carnosic acid 0.33 ± 0.10a n.d. 0.63 ± 0.22a 0.83 ± 0.11a 0.52 ± 0.05a 0.70 ± 0.15a
Caffeic acid 0.05 ± 0.00a 0.06 ± 0.02a 0.01 ± 0.00a 0.26 ± 0.04a 0.12 ± 0.02a 0.07 ± 0.02a
Men:Lau (2:1) Rosmarinic acid n.d. n.d. n.d. n.d. n.d. n.d.
Carnosol 1.19 ± 0.34b 1.70 ± 0.33a 1.42 ± 0.37a 2.30 ± 0.18b 2.15 ± 0.04b 2.24 ± 0.10b
Carnosic acid 7.71 ± 2.13b 12.34 ± 2.63b 9.60 ± 2.43b 17.54 ± 1.88b 14.49 ± 0.58b 13.23 ± 0.42b
Caffeic acid 0.08 ± 0.00b 0.01 ± 0.00b n.d. 0.09 ± 0.00b 0.09 ± 0.00a n.d.
2 La:Glu (5:1) Rosmarinic acid 0.18 ± 0.07a 0.25 ± 0.03a 0.17 ± 0.08a 0.82 ± 0.12a 0.51 ± 0.18a 0.50 ± 0.14b
Carnosol 0.17 ± 0.04a n.d. n.d. 0.34 ± 0.04a 0.31 ± 0.04a 0.35 ± 0.01a
Carnosic acid 0.40 ± 0.17a 0.28 ± 0.00a 0.99 ± 0.06a 0.90 ± 0.10a 0.91 ± 0.44a 0.48 ± 0.18a
Caffeic acid 0.05 ± 0.00ab 0.05 ± 0.00a 0.01 ± 0.00a 0.19 ± 0.04c 0.11 ± 0.04a 0.08 ± 0.01a
Me:My (8:1) Rosmarinic acid n.d. n.d. n.d. n.d. n.d. n.d.
Carnosol 1.04 ± 0.05b 1.65 ± 0.12a 1.73 ± 0.27a 2.23 ± 0.02b 2.03 ± 0.11b 2.36 ± 0.08b
Carnosic acid 5.99 ± 0.59b 12.33 ± 1.18b 11.88 ± 2.24b 16.68 ± 0.48b 14.48 ± 0.33b 12.47 ± 0.57b
Caffeic acid 0.07 ± 0.02ab 0.06 ± 0.01a 0.03 ± 0.01a 0.20 ± 0.02ac 0.09 ± 0.00a 0.12 ± 0.0a
3 La:P (3:1) Rosmarinic acid 0.19 ± 0.12a 0.08 ± 0.07b 0.15 ± 0.09a 0.41 ± 0.05b 0.51 ± 0.16a 0.17 ± 0.09c
Carnosol 0.60 ± 0.03ab 0.53 ± 0.17b 0.66 ± 0.36b 1.26 ± 0.07bc 1.05 ± 0.20bc 1.29 ± 0.20bc
Carnosic acid 0.81 ± 0.00a 0.95 ± 0.42a 0.90 ± 0.11a 2.34 ± 0.05a 2.24 ± 0.29abc 1.30 ± 0.39a
Caffeic acid 0.12 ± 0.02bc 0.06 ± 0.02a 0.03 ± 0.00ab 0.33 ± 0.01cd 0.20 ± 0.01b 0.12 ± 0.06a
Men:Lau (2:1) Rosmarinic acid n.d. n.d. n.d. n.d. n.d. n.d.
Carnosol 0.95 ± 0.15b 0.95 ± 0.30b 1.13 ± 0.23abc 2.32 ± 0.03b 2.38 ± 0.25bd 2.02 ± 0.05b
Carnosic acid 5.29 ± 1.16b 6.02 ± 2.43bc 7.21 ± 1.54bc 15.18 ± 0.31bc 15.84 ± 0.94b 11.34 ± 0.21bc
Caffeic acid n.d. n.d. n.d. n.d. n.d. n.d.
4 La:P (3:1) Rosmarinic acid 0.17 ± 0.07a 0.10 ± 0.04b 0.05 ± 0.02a 0.35 ± 0.03bc 0.38 ± 0.04ab 0.13 ± 0.05cd
Carnosol 0.50 ± 0.04ab 0.43 ± 0.02bc 0.82 ± 0.25b 1.09 ± 0.14bc 1.13 ± 0.16bc 1.21 ± 0.11bc
Carnosic acid 0.56 ± 0.06a 0.92 ± 0.10a 0.76 ± 0.12a 1.99 ± 0.36a 2.30 ± 0.08abc 1.08 ± 0.14ac
Caffeic acid 0.11 ± 0.01bc 0.06 ± 0.03a 0.06 ± 0.01b 0.18 ± 0.00c 0.24 ± 0.05bc 0.10 ± 0.01a
Me:My (8:1) Rosmarinic acid n.d. n.d. n.d. n.d. n.d. n.d.
Carnosol 0.85 ± 0.08b 0.43 ± 0.02b 0.82 ± 0.25abc 2.16 ± 0.16b 2.59 ± 0.25bce 2.11 ± 0.21b
Carnosic acid 4.48 ± 0.72bc 6.55 ± 0.24bc 6.79 ± 0.51bc 14.75 ± 1.30bc 16.99 ± 1.05bc 12.51 ± 0.51b
Caffeic acid n.d. n.d. n.d. n.d. n.d. n.d.

n.d, not detected.