V. K. Mehta

Chemical Examination of the Essential Oil of Chenopodium ambrosioides L. from the Southern Hills of India

Abstract The hydrodistilled essential oil from the aerial parts of Chenopodium ambrosioides L. was analyzed by GC and GC/MS. Fifteen constituents, representing 95% of the oil, having six monoterpene hydrocarbons (85%) and nine oxygenated monoterpenes (10%), were characterized. The major components were α-terpinene (64%), p-cymene (19%) and ascaridole (7%).

Volatile Constituents of the Essential Oil of Santolina chamaecyparissus Linn, from the Southern Hills of India

Abstract The composition of the essential oil of the aerial parts of the Santolina chamaecyparissus L. plants collected from the campus of CIMAP field station Kodaikanal (southern hills) was analyzed by GC and GC/MS. The oil yield obtained upon hydrodistillation was 1.1% (v/w) on fresh weight basis. The analysis of the oil led to the identification of 25 constituents totaling 97.4% of the oil. The identified constituents included monoterpene hydrocarbons (30%) oxygenated monoterpenes (56%), sesquiterpene hydrocarbons (10.6%) and oxygenated sesquiterpene (0.8%). The major constituents of the oil were artemisia ketone (32%), 1,8-cineole (15.6%) and myrcene (14.5%).

Volatile Constituents Present in the Fruits of the Himalayan Plant Biota orientalis

Abstract The chemical composition of the hydrodistilled fruit oil of Biota orientalis (L.) Endl, was examined by GC and GC/MS. Of the 25 constituents present in the oil, 17 were identified in which eight were monoterpene hydrocarbons (88.4%), four oxygenated monoterpenes (3.4%), three sesquiterpene hydrocarbons (2.1%), and two oxygenated sesquiterpenes (3.0%); α-pinene was the major constituents of the oil.