*3.2. Chemical Constituents of Lemongrass Oil*

Table 3 shows the chemical constituents of the EO from lemongrass fresh leaves, where the main components were *α*-citral (neral) (40.10%), *β*-citral (geranial) (30.71%), *γ*-dodecalactone (10.24%), isoneral (6.67%), neryl acetal (5.64%), linalool (1.77%), citral (1.22%), isocitral (0.97%), and geraniol acetate (0.91%). Previous studies have reported that the major constituents of EO are *α*-citral, *β*-citral, geraniol, nerol, terpinolene, geranyl acetate, citronellal, myrcene, and terpinol methylheptenone [37]. In one study, *α*-citral (44.97%), *α*-citral (33.06%), and myrcene (7.68%) were identified as the major compounds of lemongrass EO [61].



MF: match factor.

In general, lemongrass EO contains greater than 45% of α- or *β*-citral but the amount can vary widely depending on the factors the plants are exposed to, such as genetic diversity, weather, and extraction techniques [62–64].
