Topic
Terpene
About: Terpene is a research topic. Over the lifetime, 2208 publications have been published within this topic receiving 51480 citations. The topic is also known as: terpenes.
Papers published on a yearly basis
Papers
More filters
TL;DR: In both resistant and susceptible families, P stress caused an increase of 31% in foliar terpene concentration with an associated 5-fold decrease in Terpene emission rates, which could explain their susceptibility to H. abietis.
Abstract: We studied the effects of phosphorus fertilisation on foliar terpene concentrations and foliar volatile terpene emission rates in six half-sib families of Pinus pinaster Ait. seedlings. Half of the seedlings were resistant to attack of the pine weevil Hylobius abietis L., a generalist phloem feeder, and the remaining seedlings were susceptible to this insect. We hypothesised that P stress could modify the terpene concentration in the needles and thus lead to altered terpene emission patterns relevant to plant-insect signalling. The total concentration and emission rate ranged between 5732 and 13,995 μg·g(-1) DW and between 2 and 22 μg·g(-1) DW·h(-1), respectively. Storage and emission were dominated by the isomers α- and β-pinene (77.2% and 84.2% of the total terpene amount amassed and released, respectively). In both resistant and susceptible families, P stress caused an increase of 31% in foliar terpene concentration with an associated 5-fold decrease in terpene emission rates. A higher terpene content in the leaves implies that the 'excess carbon', available under limiting growth conditions (P scarcity), is allocated to terpene production. Sensitive families showed a greater increase in terpene emission rates with increasing P concentrations, which could explain their susceptibility to H. abietis.
31 citations
31 citations
TL;DR: In this paper, an extract of whole guava puree, after TLC and GLC, showed the presence of two monoterpenes and nine sesquiterpenes.
31 citations
TL;DR: The use of HPCs for the transformation of terpenic substrates became a research topic only about 20 years ago as discussed by the authors, and it has been successfully applied in the pharmaceutical, flavor, and fragrance industries.
Abstract: Heteropoly compounds (HPCs) have already proved their high potential for the clean synthesis of commercially valuable chemicals. However, the use of HPCs for the transformations of terpenic substrates became a research topic only about 20 years ago. Terpenes, natural products available from essential oils, are an important biomass-based feedstock for the pharmaceutical, flavor, and fragrance industries.
31 citations
Patent•
09 Dec 2002
TL;DR: In this paper, the authors described a formulation for prevention and treatment of a respiratory infection by inhaling a solution containing a single bioactive terpene, a bio-active ter pene mixture, or a liposome-terpene composition before or after the onset of infection.
Abstract: Composition and methods for prevention and treatment of a respiratory infection A composition comprising a single terpene, a terpene mixture, or a liposome-terpene (s) composition is disclosed The composition can be a true solution of an effective amount of an effective terpene and a carrier such as water The composition can be a suspension or emulsion of terpene, surfactant, and carrier The composition(s) of the invention can be administered before or after the onset of the disease Administration can be, for example, by spraying the respiratory tract with a solution of the present invention Prevention and treatment of a respiratory infection by the inhalation of a solution containing a single bioactive terpene, a bioactive terpene mixture, or a liposome-terpene(s) composition before or after the onset of the infection is described A true solution of terpene and water can be formed by mixing terpene and water at a solution-forming shear rate in the absence of a surfactant
30 citations