Chemical Varieties of Essential Oils fromElsholtzia polystachyafrom Two Different Locations in India¹

Abstract

Capillary GC, GC-MS, IR, GC-IR, (1)H- and (13)C-NMR studies of the essential oil from the leaves and cones of ELSHOLTZIA POLYSTACHYA collected from two different locations in India revealed that one oil contained 1,8-cineol (37.3%), the other one perillene (61.2%) as the main constituent.

Study on the Difference between Volatile Constituents of the Different Parts from <i>Elsholtzia ciliata</i> by SHS-GC-MS

“…The separated volatile components were identified by the NIST MS library search (NIST MS Search 2.0) and comparison with literatures [10]- [19]. The relative contents of each constituent from the volatile constituents were determined by area normalization method.…”

Chemical Diversity in Himalayan Elsholtzia Species

“…The essential oil from the leaves of E. polystachya (EPL-I) was characterized by rosefuran (48.15%) and 1,8-cineole (19.02%), in contrast to the presence of 1,8-cineole (37.30%) and (E)-b-ocimene (18.22%) reported earlier for E. polystachya collected in the alpine belt (EPL-II) and another chemotype of E. polystachya (EPL-III) reported to contain perillene (61.21%) [14]. Hence, the present study revealed the existence of a third chemotype of E. polystachya, with the presence of rosefuran (48.15%) along with significant amounts of sesquiterpenoids, which were not reported to be constituents of E. polystachya earlier.…”

“…Hence, the present study revealed the existence of a third chemotype of E. polystachya, with the presence of rosefuran (48.15%) along with significant amounts of sesquiterpenoids, which were not reported to be constituents of E. polystachya earlier. Further, perillene, which was found to be one of the major constituents of EPL-III (61.21%) [14], was not detected in EPL-I.…”

“…EE, E. eriostachya (leaves); EEP, E. eriostachaya var. pusilla (whole aerial parts) [13]; EPL-I, E. polystachya (leaves); EPL-II and EPL-III, E. polystachya (leaves) [14]; EP-I, E. pilosa (leaves); EP-II, E. pilosa (whole aerial parts) [15]; EF-I, E. flava (leaves); EF-II, E. flava (leaves) [10]; EC, E. cristata (leaves); ES, E. strobilifera (leaves/cones) [16]; ED, E. densa (whole aerial parts) [12]; EB, E. blanda (whole aerial parts) [17]; EI, E. incisa (whole aerial parts) [18]. ED, E. densa (whole aerial parts) [12]; EB, E. blanda (whole aerial parts) [17]; EI, E. incisa (whole aerial parts) [18].…”

The efficacy of essential oil of Alpinia calcarata (Rosc.) and its major constituent, 1,8-cineole, as protectants of cowpea against Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)

“…Cineole is a component widely distributed in the plant kingdom (Johns et al 1992;Mathela et al 1992;Tripathi et al 2001). Cineole has previously been reported as having insecticidal activity against Sitophilus oryzae (L.), Tribolium castanaeum (Herbst.…”