Composition of the essential oil fromCalamintha nepeta (L.) Savi ssp.glandulosa (Req.) P. W. Ball

Essential Oil Extraction, Chemical Analysis and Anti-Candida Activity of Calamintha nepeta (L.) Savi subsp. glandulosa (Req.) Ball—New Approaches

“…It was particularly abundant in the August (84.7%) and July harvest (77.7%) samples. These findings are in compliance with previous reports [11,12,13,14,17,21,22,26,28,29,31,32,33,34]. PUL is a monoterpene ketone (Figure 2b) with a fresh odor reminiscent of mint, found in many Lamiaceae species.…”

“…September and October harvest materials were characterized by a substantial increase of MEN (up to 35.4% in O1h), particularly in the first three hours, displaying almost 10 times the amount obtained from the plant collected in July and August. The substantial presence of MEN (Figure 2b) in the CG oils has already been reported [12,13,14,21,22,34], sometimes up to 60% [11]. According to results of the GC/MS analysis, samples from Tarquinia clearly belong to the PUL/MEN chemotype.…”

Volatile constituents, phenolic compounds, and antioxidant activity of Calamintha glandulosa (Req.) Bentham

“…As indicated above, the literature reports high intra‐specific chemical variations three different chemotypes in of C. glandulosa . The most abundant chemotype is pulegone/menthone, found in this species growing wild in Italy, Turkey, Croatia and Montenegro, then the piperiton oxide/piperitenone oxide chemotype, also found in Croatia, Greece and Belgium …”

Yield and Composition of the Essential Oil of Clinopodium nepeta subsp. spruneri as Affected by Harvest Season and Cultivation Method, i.e., Outdoor, Greenhouse and In Vitro Culture

“…Similar yields to those given by the plants in our experiments have been reported in samples from wild populations of C. nepeta subsp. spruneri , during the flowering stage, collected from the Greek island Lefkada (2.0%) [ 36 ], Zonguldak in Turkey (2.7%) [ 69 ], Corinth in Northeast Peloponnese in Greece (3.3%) [ 39 ] and five regions of Central Italy (1.6–2.6%) [ 70 ]. However, there are several studies reporting a lower yield (0.1–1.2%) in flowering wild C. nepeta plants [ 34 , 37 , 71 , 72 , 73 , 74 , 75 , 76 , 77 ] in samples from France, Greece, Turkey, Italy, Croatia, Montenegro, Albania, Portugal and Tunisia.…”

“…spruneri samples from Turkey and Greece [ 11 , 69 , 102 ], while, in Calamintha nepeta plant material from Tuscany Islands, a high percentage of monoterpene hydrocarbons was detected, with α-pinene, β-pipene and limonene being the main representatives [ 59 ]. Regarding 3-octanol, it was detected in most previous works at low percentages (0.2–2.4%) [ 34 , 39 , 41 , 69 , 100 , 101 , 103 , 104 ], while carvacrol, which is the main compound in the essential oils of Oreganum spp. [ 105 , 106 ], was detected (at 0.5–5.71%) in much fewer works [ 59 , 76 , 107 ].…”