geranyl-acetate and beta-pinene

The aim of the present study was to determine the effect of jasmonic acid added to the culture medium on composition of Lavandula angustifolia essential oils. The chemical composition was determined by gas chromatography coupled to mass detector (GC/MS). The experiment was conducted with the use of MS medium supplemented with increasing concentration of JA (0.2, 0.5, 1, 1.5 mg∙dm

Topics: Acetates; Acyclic Monoterpenes; Bicyclic Monoterpenes; Bridged Bicyclo Compounds; Cell Culture Techniques; Culture Media; Cyclohexanols; Cyclopentanes; Eucalyptol; Gas Chromatography-Mass Spectrometry; Lavandula; Monoterpenes; Oils, Volatile; Oxylipins; Polycyclic Sesquiterpenes; Sesquiterpenes; Terpenes

This paper introduces a detailed method to apply metabolic profiles conducting on tangerine peels (Citrus reticulata 'Dahongpao') at three maturity stages from July to December. Principal component analysis not only demonstrated the metabolic footprints of tangerine peels during ripening but also revealed the compounds (D-limonene and linalool) that mostly contributed to it. Furthermore, some other characteristic compounds were screened to further reveal the chemical features of Pericarpium Citri Reticulatae (PCR) and Pericarpium Citri Reticulatae Viride (PCRV). In particular, compounds such as 4-carene (r = -0.94), 3-carene (r = -0.91), β-pinene (r = -0.85) and γ-terpinene (r = -0.87) were screened as major components for the pungent smell of PCRV. Geranyl acetate (r = 0.81), farnesyl acetate (r = 0.87) and three alcohols (6-hepten-1-ol, 3-methyl-1-hexanol, 1-octanol) may lead to the pleasant odour of PCR. We therefore propose that the metabolomics analysis focusing on ripening process will be an effective strategy for quality control of closely related herbal medicines.

Topics: 1-Octanol; Acetates; Acyclic Monoterpenes; Bicyclic Monoterpenes; Bridged Bicyclo Compounds; Citrus; Cyclohexane Monoterpenes; Cyclohexenes; Farnesol; Fruit; Gas Chromatography-Mass Spectrometry; Hexanols; Limonene; Metabolomics; Monoterpenes; Principal Component Analysis; Terpenes; Volatile Organic Compounds