Journal of Food Bioactives, ISSN 2637-8752 print, 2637-8779 online
Journal website www.isnff-jfb.com

Original Research

Volume 20, December 2022, pages 56-60


Where has all the aroma gone? Identification of aroma compounds in fresh and dried leaves of Melissa officinalis

Figure

Figure 1.
Figure 1. Aroma profiles of fresh and dried lemon balm leaves, determined by a trained panel (n = 11).

Table

Table 1. Aroma compounds, their retention indices (RI), flavor dilution (FD) factors, and odor qualities as detected in distillates of fresh and dried leaves of Melissa officinalis
 
No.SubstanceOdor qualityRIFD factorCriteria for (tentative) identification
FFAPDB-5freshdried
O: odor quality, MS: mass spectrum, RC: comparison of respective data with reference compounds, RILIT: comparison of RI with literature data, MSNIST: comparison of MS with NIST Library
1UnknownGlue-like, green1,018927
2UnknownGreen1,04399
3β-PineneEucalyptus-like1,115993981O, RI, MS, RC
4(Z)-3-HexenalGrassy, green1,1417952,187O, RI, MS, RC
5(E)-2-HexenalFruity, apple-like, banana-like1,215852327RILIT, MSNIST
6trans-β-OcimeneCelery-like1,2311,0398181O, RI, MS, RC
7(Z)-4-HeptenalFishy, fatty1,2349O, RI, RC
81-Octen-3-oneMushroom-like1,2929878181RILIT, MSNIST
9cis-β-OcimeneCelery-like1,2471,0508181RILIT, MSNIST
10UnknownMint-like1,25227
11OctanalCitrus-like, soapy1,2821,0068181O, RI, MS, RC
122-Acetyl-1-pyrrolinePopcorn-like, roasty1,3269228181O, RI, RC
13(Z)-1,5-Octadien-3-oneGeranium leaf-like, green, metallic1,3629828181RILIT
14(Z)-3-HexenolGrassy, green1,38239RILIT, MSNIST
153-Isopropyl-2-methoxypyrazinePea-like1,4161,0978181RILIT
16cis-Linalool oxideEucalyptus-like1,4261,09981729O, RI, MS, RC
171-Octen-3-olMushroom-like1,4349888181O, RI, MS, RC
183-Methylthio propanalCooked potato-like1,4399052781O, RI, RC
19CitronellalCitrus-like1,4641,1432,1872,187O, RI, MS, RC
20UnknownMetallic1,52533
21LinaloolFlowery1,5391,10072981O, RI, MS, RC
22(E,Z)-2,6-NonadienalCucumber-like1,5691,145243O, RI, MS, RC
23PhenylacetaldehydeBeeswax-like, rapeseed-like, flowery1,6381,044819O, RI, MS, RC
24Butanoic acidCheesy, sweaty1,6249O, RI, RC
25NeralCitrus-like1,6661,2412,1872,187O, RI, MS, RC
26GeranialCitrus-like1,7151,2742,1872,187O, RI, MS, RC
27Geranyl acetateLemon-like, soapy1,7521,3842,1872,187RILIT, MSNIST
28GeraniolFlowery1,8351,2502,1872,187O, RI, MS, RC
292-PhenylethanolRose-like, flowery1,8911,11599O, RI, MS, RC
30β-IononeViolet-like, flowery1,9301,4849O, RI, MS, RC
31trans-(4,5)-Epoxy-(E)-2-decenalMetallic2,0061,38299O, RI, RC
32UnknownLeather-like2,0641,4212727
33(E,Z,Z)-2,4,7-TridecatrienalBlood-like2,0971,5752781O, RI, RC
34Nonanoic acidSoapy, fatty, musty2,1631,259273RILIT, MSNIST
35UnknownLeather-like2,1671,0942727
36UnknownSoapy, citrus-like2,4401,5502,1872,187
37VanillinVanilla-like2,5631,408243O, RI, MS, RC