Table 2. Lipophilic constituents of n-hexane extract from Swietenia mahagoni wood (% based on dried extract)

Compounds and extractives 1 year 2 year 3 year 4 year 5 year
Formula Sapwood Sapwood Sapwood Sapwood Heartwood Sapwood Heartwood
Extractive 0.76 (0.13) 1.27 (0.10) 1.54 (0.52) 1.67 (0.37) 1.83 (0.56) 1.50 (0.55) 2.45 (0.16)
Hydrocarbons 12.70 16.00 3.91 18.60 23.60 9.51 19.10
 Undecane, 3-methylene-** C12H26 0.00 0.00 1.40 (0.52) 1.11 (0.57) 0.59 (0.31) 0.00 1.46 (0.73)
 Tridecane, 3-methylene-** C14H28 0.00 0.00 1.33 (0.60) 0.23 (0.28) 0.30 (0.09) 0.00 0.31 (0.13)
 Pentadecane** C15H30 1.26 (0.58) 1.27 (0.33) 0.00 5.39 (2.65) 2.17 (0.46) 1.17 (1.39) 1.88 (0.43)
 Cetene** C16H32 0.00 0.00 0.38 (0.12) 0.00 3.19 (1.06) 1.59 (1.18) 2.38 (1.10)
 Hexadecane** C16H34 2.75 (2.44) 0.81 (0.14) 0.00 4.66 (2.52) 0.53 (0.36) 0.00 1.62 (0.20)
 Heptadecane** C17H36 0.00 0.61 (0.07) 0.72 (0.30) 3.71 (2.26) 0.00 0.00 0.00
 1-Octadecene** C18H36 2.12 (1.49) 4.66 (0.73) 0.08 (0.03) 0.41 (0.17) 3.02 (1.19) 2.45 (1.96) 2.39 (0.80)
 Cycloeicosane** C18H36O2 2.78 (2.48) 2.96 (0.73) 0.00 0.00 6.40 (2.47) 2.90 (1.49) 2.28 (1.03)
 Heneicosane* C21H44 1.69 (1.46) 0.45 (0.41) 0.00 2.95 (1.57) 0.00 0.00 0.40 (0.16)
 Cyclotetracosane* C24H48 0.00 4.30 (0.52) 0.00 0.12 (0.10) 5.10 (2.01) 0.00 5.39 (0.93)
 Cyclooctacosane** C28H56 2.14 (1.87) 0.98 (0.37) 0.00 0.00 2.30 (0.68) 1.40 (1.03) 0.98 (0.20)
Fatty acids 8.80 9.31 7.66 16.7 13.7 8.89 16.8
 Dodecanoic acid* C12H24O2 0.24 (0.06) 0.00 0.00 0.28 (0.11) 0.00 0.24 (0.31) 0.00
 Myristic acid* C14H28O2 0.59 (0.24) 0.00 0.00 0.17 (0.04) 0.00 0.00 0.00
 Pentadecanoic acid* C15H30O2 0.37 (0.12) 0.00 0.00 0.15 (0.04) 0.11 (0.07) 0.00 2.04 (1.30)
 Palmitic acid* C16H32O2 3.99 (0.66) 5.29 (0.87) 5.15 (2.40) 6.08 (1.32) 6.27 (0.85) 3.67 (1.76) 6.06 (2.93)
 Linoleic acid* C18H32O2 0.39 (0.06) 1.73 (0.95) 0.37 (0.17) 2.69 (1.73) 1.57 (0.35) 1.41 (0.38) 1.70 (0.92)
 Oleic acid* C18H34O2 0.66 (0.43) 0.72 (0.25) 0.94 (0.58) 4.29 (2.38) 2.73 (1.77) 0.76 (0.40) 2.26 (1.25)
 Stearic acid* C18H36O2 2.56 (1.72) 1.57 (0.26) 1.14 (0.05) 2.87 (1.67) 3.04 (0.58) 2.56 (1.63) 2.53 (1.22)
 Arachidic acid* C20H40O2 0.00 0.00 0.06 (0.03) 0.12 (0.11) 0.00 0.25 (0.22) 0.00
 Docosanoic acid* C22H44O2 0.00 0.00 0.00 0.00 0.00 0.37 (0.19)
 Tetracosanoic acid* C24H48O2 0.00 0.00 0.00 0.00 0.00 0.00 1.81 (0.32)
Sterols 3.25 3.09 3.40 7.36 16.20 9.51 28.20
 Campesterol** C28H48O 0.00 0.00 0.93 (0.37) 2.06 (0.93) 0.00 1.44 (0.74) 4.91 (2.24)
 Stigmasterol** C29H48O 0.00 0.86 (0.30) 0.49 (0.15) 0.00 2.02 (1.04) 0.58 (0.50) 2.71 (0.46)
 β-sitosterol* C29H50O 3.25 (1.60) 2.23 (0.80) 1.98 (1.09) 3.27 (1.86) 9.04 (0.69) 3.80 (0.19) 6.77 (0.81)
 Urs-12-en-28-ol** C30H50O 0.00 0.00 0.00 0.00 0.60 (0.31) 0.00 1.14 (0.29)
 Cycloeucalenol** C30H50O 0.00 0.00 0.00 0.00 0.63 (0.44) 1.20 (1.04) 4.32 (1.08)
 Cyclolaudenol** C31H52O 0.00 0.00 0.00 2.03 (1.65) 3.30 (1.27) 2.49 (1.56) 6.61 (1.39)
 Stigmast-5-en-3-ol, oleate** C47H82O2 0.00 0.00 0.00 0.00 0.60 (0.18) 0.00 1.78 (0.41)
Other 3.22 0.00 0.41 0.00 3.86 0.00 4.23
 1-Heneicosanol** C21H44O 3.22 (2.44) 0.00 0.41 (0.17) 0.00 3.86 (1.41) 0.00 4.23 (1.38)
The SDs are given in the brackets.
Means of three trees
compared with standard compound,
compared with similarity index > 80% and/or with data from the literatures.
Data from NIST (2011).