*3.1. Gas Chromatography–Mass Spectrometry (GC-MS) Analysis*

Major constituents of neroli essential oil were investigated through gas chromatography– mass spectrometry (GC-MS) analysis (Table 1). The monoterpene Linalool represents the most abundant compound in the essential oil composition (10.70 ± 0.55 %), followed by anthranilic acid, limonene, α-terpineol, and geranil acetate, with value percentage of 6.43 ± 0.60, 3.91 ± 0.12, 3.31 ± 0.15, and 3.21 ± 0.23, respectively. Other compounds, such as 4-carene and α-ocimene, were found in trace amounts.


**Table 1.** Gas chromatography–mass spectrometry (GC-MS) analysis.

Notes: <sup>a</sup> Major compounds listed in order of elution from SE30 MS column; <sup>b</sup> Retention time (as min); <sup>c</sup> Relative area percentage (peak area relative to total peak area in total ion current (TIC) %); <sup>d</sup> Tr: Traces percentages < 0.1%. Data are expressed as mean ± standard deviation (*n* = 3) of 3 independent experiments.
