Caption: Figure 2: Chemical structures of caffeine (a), N,N-dimethyl-L-alanine (b), quercetin-3-O-galactopyranoside (c), dodecanoic acid
(d), and condensed tannins (e).
The PCA performed showed that 4 aromatic compounds had a strong influence on differentiation of treatments, which were 3-methylbutyl acetate, 1-methylbutyl propanoate, decanoic acid, and dodecanoic acid
Analytically pure dodecanoic acid
(AR) and acetone (AR) were purchased from Beijing Chemical Reagents Company.
Schmidt (1984) evaluated the influence of saturated fatty acids on spore germination of brown- and white-rot basidiomycetes and determined that caprylic or ocanoic (C8), pelargonic or nonanoic (C9), and decanoic (C 10) acids (100 ppm) destroyed spores of test fungi, whereas dodecanoic acid
(C12) was effective against brown-rot but not white-rot fungal spores.
All of the volatile hips oil compositions for these species were dominated by following components: vitispiran (isomer), [alpha]-E-acaridial, dodecanoic acid
, hexadecanoic acid, docosane (C22), _-ionone, 6-methyl-5-hepten-2-one, 2-heptanone, heptanal, myristic acid and linolic acid.
(2000) identified propionic acid, butyric acid, decanoic acid, and dodecanoic acid
in aroma of two White grape varieties.
Sampling 1 Sampling 2 (E)-2-nonenal (7) 140 X X (E)-2-octenal (7) 126 X X (E,E)-2,4-nonadienal 138 X X (1,6,7) (E,E)-2,4-decadienal (7) 152 X X 3,7-dimethyl-2,6- 152 X X octadienal (1) 6,10-dimethyl-5,9- 194 X X undecadien-2-one (1) Benzaldehyde (1,6) 106 X X Benzyl alcohol (1,4) 108 X X Cyclotetradecane (1) 196 X Dodecanoic acid
(1,3,5,6) 200 X X Heptadecane (1,2) 240 X X Heptanal (1,5,6) 114 X X Hexanal (5,7) 100 X Nonanoic acid (1,3,4,8) 158 X Octadecane (1) 254 X X Toluene (1,6) 92 X X Undecanal (5) 170 X X (1.) Previously reported as a component in human skin emanation (Bernier et al.
After 100 days, methyl ester dodecanoic acid
and methyl tetradecanoate were detected with a 94% match.
Comment on "Whole blood levels of dodecanoic acid
, a routinely detectable forensic marker for a genetic disease often misdiagnosed as sudden infant death syndrome (SIDS): MCAD deficiency" [Letter; Comment].
Of several chemicals positively identified at day 16, only dodecanoic acid
was found solely in the inoculated fermentation.
Similar type of study, at 50 days, methyl ester dodecanoic acid
and methyl tetradecanoate etc.
Table 1: Terpenes from chloroform extract of the green parts of G.hispida No Compound Content, mg/kg 1 Megastigmatrienone I 84.19 2 alpha-Pinene 16.91 3 Phytol 9.63 4 Isophytol 15.06 Table 2: Odor compounds of the chloroform extract of the green parts of G.hispida No Constituent Odor description 1 Megastigmatrienone I Warm, Dry, Sweet, Tobacco-Like 2 alpha-Pinene Resinous, pine odor 3 Nonanoic acid Fatty, musty, sweaty sour "goaty" 4 Tetradecanoic acid Very faint, waxy-oily; nearly odorless 5 9-Hexadecenoic acid Weak fatty-tallowy fried odor 6 Dodecanoic acid
Weak, refreshing, fatty, waxy odor Table 3: Phenolic compounds of the water extract of the green parts of G.