## 2 Results and Discussion
### Organic Extractives Isolated by Ultrasonic Solvent Extraction from the Bee-Stomach and Honey
\begin{tabular}{l l l l l l l l l l l} \hline
18. & 2-Phenylethanola  & 1116 & 0.1 & 0.4 & 0.30 & 0.17 & 0.2 & 0.4 & 0.33 & 0.11 & - \\
19. & 5-Hydroxy-2-methyl-4H-Pyran-4-one & 1139 & 0.0 & 0.2 & 0.10 & 0.10 & 0.0 & 0.1 & 0.07 & 0.06 & - \\
20. & dihydroxy-6-methyl-4H-pyran-4-one & 1145 & 0.0 & 0.2 & 0.10 & 0.10 & 0.0 & 0.2 & 0.13 & 0.11 & - \\
21. & Octanoic acid  & 1174 & - & - & - & - & - & - & - & 0.4 \\
22. & Benzoic acid  & 1162 & 0.4 & 1.3 & 0.97 & 0.49 & 0.2 & 0.9 & 0.63 & 0.38 & - \\  & 3,5-dihydroxy-2-methyl-4H-Pyran-4-one & 1189 & 0.0 & 0.2 & 0.10 & 0.10 & - & - & - & - & - \\
23. & methyl-4H-pyran-4-one & 1189 & 0.0 & 0.2 & 0.10 & 0.10 & - & - & - & - & - \\  & 3,7-Dimethylocta-4H-pyran-4-one & 1191 & 1.0 & 4.9 & 3.17 & 1.98 & 0.7 & 2.5 & 1.57 & 0.90 & 5.0 \\
24. & 1,5-dien-3,7-diol (terpendiol I) & 1200 & - & - & - & - & - & - & - & - & 0.8 \\
25. & Dodecane  & 1200 & - & - & - & - & - & - & - & - & 0.8 \\
26. & 5-Hydrooxymethyl-furfural & 1230 & 0.1 & 2.7 & 1.60 & 1.35 & 0.2 & 5.1 & 2.97 & 2.51 & - \\
27. & (_E_)-Dec-2-eal & 1268 & - & - & - & - & - & - & - & - & 1.2 \\
28. & Phenylacetic acid  & 1269 & 1.0 & 7.7 & 3.83 & 3.44 & 0.3 & 5.1 & 2.37 & 2.47 & - \\
29. & Nonanoic acid  & 1273 & - & - & - & - & - & - & - & - & 0.3 \\
30. & 4-Acetylaniline & 1308 & 0.0 & 0.2 & 0.10 & 0.10 & - & - & - & - & - & - \\
31. & 3-Hydroxy-4-phenyl-butanol-2-one & 1354 & 0.8 & 1.9 & 1.33 & 0.55 & 0.6 & 1.2 & 0.83 & 0.32 & - \\
32. & Phenylpropanoic acid  & 1361 & 0.0 & 0.6 & 0.27 & 0.31 & 0.0 & 0.3 & 0.17 & 0.15 & - \\
33. & 1-Hydroxylinalool & 1365 & 0.1 & 0.4 & 0.23 & 0.15 & 0.2 & 0.3 & 0.20 & 0.10 & - \\
34. & 2-Phenylacetamide & 1393 & 0.0 & 0.1 & 0.07 & 0.06 & 0.0 & 0.5 & 0.23 & 0.25 & - \\
35. & 2-Aminobenzzoic acid & 1416 & 0.0 & 0.8 & 0.33 & 0.42 & 0.0 & 0.7 & 0.27 & 0.38 & - \\
36. & 4-Hydroxybenzyl alcohol & 1426 & 0.1 & 0.2 & 0.17 & 0.06 & - & - & - & - & - \\  & 2,6-bis(1,1- & & & & & & & & & & \\
37. & Dimethylethyl)-cyclohexa-2,5-diene-1,4-dione & 1473 & - & - & - & - & - & - & - & 2.3 \\  & 2,6-di(1,1- & & & & & & & & & & \\  & Dimethylethyl)-4- & & & & & & & & & & & \\
38. & hydroxy-4-methyl-cyclohexa-2,5-dien-1-one & 1841 & - & - & - & - & - & - & - & - & 1.3 \\  & 2,6-di(1,1- & & & & & & & & & & & \\
39. & Dimethylethyl)-4-metylene-cyclohexa-2,5-diene-1-one & 1845 & - & - & - & - & - & - & - & - & 1.0 \\
40. & Acetylvanillone & 1494 & 0.0 & 0.3 & 0.17 & 0.15 & 0.0 & 0.3 & 0.17 & 0.15 & - \\
41. & Pentadecane  & 1500 & - & - & - & - & - & - & - & - & - & 0.3 \\
42. & 2,4-bis(1,1- & & & & & & & & & & \\
43. & Dimethyl)phenol & 1525 & - & - & - & - & - & - & - & - & 1.2 \\
44. & Methyl vanilate  & 1527 & 0.4 & 1.3 & 0.83 & 0.45 & 0.3 & 0.8 & 0.60 & 0.26 & - \\
44. & 4-Hydroxybenzoic acid  & 1558 & 0.3 & 0.9 & 0.67 & 0.32 & 0.0 & 0.2 & 0.10 & 0.10 & - \\
45. & Vanillic acid  & 1566 & 0.2 & 0.8 & 0.50 & 0.30 & 0.1 & 0.3 & 0.20 & 0.10 & - \\
46. & 3-Hydroxy-\(\beta\)-damascone & 1617 & 0.0 & 0.5 & 0.27 & 0.25 & 0.1 & 0.3 & 0.20 & 0.10 & - \\
47. & Isopropyl-pseudocumene  & 1657 & 0.3 & 1.8 & 1.13 & 0.76 & 0.5 & 1.7 & 1.07 & 0.60 & 0.6 \\ \hline \end{tabular}   
Methyl syringae was the most abundant compound of all _Mentha_ ssp. honey solvent extracts (Table 1, Figure 2) with minor percentage differences among different solvents: 47.9-56.2% (solvent pentanet-diethyl ether 1:2 v/v); 38.3-48.6% (solvent dichloromethane). Methyl syringae was detected also in robinia, rape, chestnut, clover, linden blossom, dandelion, sunflower, thyme, manuka and fir honeys [20], but only in asphal model honey it reached the highest level [21]. Benzoic acid derivatives can be produced through the shikimate pathway [22], and methyl syringae [23, 24] and its glucoside [25] were found in several plant extracts, but syringic acid methyl ester is also a typical laccase substrate in mediated breakdown of lignocellulosic.