Table 2.
Compound, TMS 1 | RI Exp. 2 | RI Lit. 3 | I. paraguariensis | I. aquifolium | I. meserveae | ||||
---|---|---|---|---|---|---|---|---|---|
Alaska | Ferox Argentea | Rubricaulis Aurea | Blue Angel | Blue Boy | Golden Girl | ||||
Concentration (mg g−1) d.w | |||||||||
β-Amyrin | 3369 | 3353 | 1.44 4a | 1.21 b | 0.90 d | 0.49 e | 1.87 c | 1.95 c | 1.43 a |
α-Amyrin | 3412 | 3406 | 4.28 a | 3.22 b | 1.87 d | 0.36 e | 3.07 b | 1.75 d | 2.18 c |
Lupeol | 3429 | 3435 | 1.05 a | 2.18 e | 1.39 b | 0.42 c | 1.86 d | 1.35 b | 2.53 f |
Uvaol | 3531 | 3540 | 2.21 a | 2.42 a | 1.03 c | 0.37 d | 0.99 c | 1.70 b | 2.48 a |
Betulinic acid | 3579 | 3588 | 1.42 a | 0.98 b | 0.50 d | 0.76 c | 0.19 e | 0.42 d | 0.59 cd |
Oleanolic acid | 3593 | 3591 | 2.03 a | 4.89 e | 3.45 c | 2.87 b | 4.08 d | 6.52 f | 4.31 d |
Ursolic acid | 3664 | 3657 | 1.23 a | 15.55 f | 10.22 c | 7.29 b | 14.44 e | 16.11 g | 13.51 d |
Total | 13.66 | 30.45 | 19.36 | 12.56 | 26.50 | 29.80 | 27.03 |
1 All compounds are TMS derivatives. 2 Experimental retention indices calculated against n-alkanes. 3 Retention indices according to the NIST20 database. 4 Values are mean; values followed by the same letter within a row are not significantly different (p > 0.05, Tukey’s test).