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Identification of volatile organic compounds emitted from meranti and larch wood

100%

Waliszewska B., Zborowska M., Dukiewicz H., Wojciechowski T., Cofta G.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2013

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tom 84

2

Chemometrics as a tool for plant - inscet ecological studies

100%

Szafranek J., Nawrot J., Szafranek B., Malinski E.

Journal of Plant Protection Research

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2001

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tom 41

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nr 4

The process of plant selection by insects is mediated by repellents and attractants. Several compounds may be involved in this interaction. Thus intraspecific variation of the compounds concentration play an important role in the herbivory. The best tool for the characteristic of this variation is chemometrics. The strategy of the analysis with the use of literature data on terpenes and sesquiterpenes variations in Pinus caribaea needles in relation to Atta laevigata herbivory is exemplified herein. Simple cluster analysis and principal components analysis were used for the data study. Two factors were found to be sufficient to describe total variation in more than 90%. Factor 1 is responsible for repellent properties. From factor loading, the relevant chemical compounds were identified.

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Phytochemical, pharmacological and clinical studies of Petasites hybridus (L.) P. Gaertn., B. Mey. and Scherb. A reviev

84%

Ozarowski M., Przystanowicz J., Adamczak A.

Herba Polonica

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2013

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tom 59

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nr 4

Preparations from rhizomes of Petasites hybridus (L.) Gaertn., B. Mey. & Scherb. (common butterbur) have a long history of use in folk medicine in treatment of several diseases as anti-inflammatory and spasmolytic drugs. Extracts from this species are of interest to researchers in the field of phytopharmacology due to their biologically active compounds, particularly two eremophilane sesquiterpenes (petasin and isopetasin), which are contained not only in rhizomes and roots, but also in leaves. Moreover, P. hybridus contains pyrrolizidine alkaloids, which showed hepatotoxic, carcinogenic and mutagenic properties. Hence, special extracts devoid of alkaloids obtained by sub- and super-critic carbon dioxide extraction were used in the preclinical, clinical studies and phytotherapy. Our review aims to provide a literature survey of pharmacological as well as clinical trials of P. hybridus, carried out in 2000–2013. Also several studies of other species used in non-European countries have been included. Besides, the botanical description of Petasites genus and phytochemical characteristic of P. hybridus and toxicological studies of pyrrolizidine alkaloids as well as chemical profile of patented commercial extracts from rhizomes, roots and leaves of this species used in European phytotherapy have been performed. In this review, attention has also been paid to the promising and potential application of special extracts of P. hybridus not only in the prevention of migraine, treatment of allergic rhinitis symptoms, asthma and hypertension, but also in prevention and slowing the progression of neurodegenerative diseases developing with the inflammatory process in the CNS as a new therapeutic strategy. In fact, there is already an evidence of promising properties of P. hybridus extracts and sesquiterpens – decrease in the prostaglandins and leukotrienes release, inhibition of COX-1 and COX-2 activity, as well as antagonism of L-type voltage-gated calcium channels. In order to explain the new mechanisms of action of P. hybridus extracts in the CNS and their future application in phytotherapy of diseases with neuroinflammatory process, further studies should be performed.

4

Dependences between the length of vegetation period of field plants and the content and composition of essential oil in celery leaves

84%

Najda A., Dyduch J.

Electronic Journal of Polish Agricultural Universities. Series: Horticulture

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2005

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tom 08

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nr 4

5

Changes of volatile sesquiterpenes and other fungal activity indicator during the growth of Fusarium sambucinum strains

84%

Jelen H., Gruchala L., Latus-Zietkiewicz D., Wasowicz E., Kaminski E.

Acta Microbiologica Polonica

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1997

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tom 46

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nr 3

6

Monoterpene and sesquiterpene hydrocarbons in the fruit essential oil of Phellodendron amurense Rupr.

84%

Lis A., Boczek E., Gora J.

Herba Polonica

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2003

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tom 49

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nr 1-2

Phellodendron amurense Rupr. (amur cork tree, Rutaceae), a strong tree, native to Eastern Asia, it is cultivated in Europe and America as a decorative plant. Phellodendri cortex contains alkaloids, limonoids, phenolic compounds and polysaccharides. It is used as antiinflammatory, antineuralgic and antidiabetic agent in stomach diseases in Far East Medicine. Air-dried fruits contain 1.9% of essential oil. Monoterpene and sesquiterpene hydrocarbons were investigated. Hydrocarbon fractions were isolated by vacuum distillation and flash chromatography. Components of fractions were identified by GC, GC/MS, and 'H-NMR spectroscopy. Fifteen monoterpene hydrocarbons representing 72% of the oil with myrcene (67,3%) and nineteen sesquiterpene hydrocarbons representing 1 1% of the oil with ß-caryophyllene (7.0%) and germacrene D (1.6%), were identified.

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Amoebicidal activity of alpha-bisabolol, the main sesquiterpene in chamomile (Matricaria recutita L.) essential oil against the trophozoite stage of Acanthamoeba castellani Neff

67%

Hajaji S., Sifaoui I., Lopez-Arencibia A., Reyes-Batlle M., Valladares B., Pinero J. E., Lorenzo-Morales J., Akkari H.

Acta Parasitologica

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2017

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tom 62

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nr 2

8

Analysis of lipophilic fraction from leaves, inflorescences and rhizomes of Silphium perfoliatum L.

67%

Kowalski R.

Acta Societatis Botanicorum Poloniae

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2005

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tom 74

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nr 1

This paper presents a qualitative and quantitative chromatographic analysis (GC/MS) of the lipophilic fraction extracted from leaves, inflorescences and rhizomes of Silphium perfoliatum L. collected in 1998-2000. It was shown that the extracts of leaves and inflorescences are similar in composition, containing among their main constituents: α-amyrine (up to 13.9% of total components in leaves, up to 11.3% in inflorescences), heptacosane (up to 7.1% in leaves, up to 7.6% in inflorescences), stigmasterol (up to 8.1% in leaves, up to 2.2% in inflorescences), γ-sitosterol (up to 6.9% in leaves, up to 2.2% in inflorescences), β-amyrine (up to 4.1% in leaves, up to 5.8% in inflorescences), β-caryophyllene (up to 2.6% in leaves, up to 1.5% in inflorescences), caryophyllene oxide (up to 4.4% in leaves, up to 2.9% in inflorescences), germacrene D (up to 13.8% in leaves, up to 9.7% in inflorescences) and α-pinene (up to 3.3% in leaves, up to 2.4% in inflorescences). The chemical composition of lipophilic extract of rhizomes significantly differs from that of leaves and inflorescences. The following compounds can be counted among the dominant ones occurring in rhizome extracts: diterpene of labdane type - 16-acetoxycarterochaetol (up to 45%) and sesquiterpenes - 7-b-H-silphiperfol-5-ene (up to 9.1%), 7-a-H-silphiperfol-5-ene (up to 10.7%), d-elemene (up to 7.6%), isocomene (up to 5.6%), germacrene D (up to 5.2%) and modhephene (up to 5.1%).

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Further evaluation of feeding deterrency of sesquiterpene lactones to storage pests

59%

Nawrot J., Bloszyk E., Grabarczyk H., Drozdz B., Daniewski W. M., Holub M.

Prace Naukowe Instytutu Ochrony Roślin

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1983

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tom 25

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nr 1

10

Badanie wplywu woskow powierzchniowych ziemniaka Solanum tuberosum ze szczegolnym uwzglednieniem seskwiterpenow oraz wybranych olejkow eterycznych na zachowanie stonki ziemniaczanej Leptinotarsa decemlineata

59%

Szafranek J., Malinski E., Nawrot J., Szafranek B., Synak E., Dubis E., Golebiowski M., Winiecki Z.

Progress in Plant Protection

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1998

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tom 38

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nr 1

36-43

Ograniczanie wyników

Identification of volatile organic compounds emitted from meranti and larch wood

Chemometrics as a tool for plant - inscet ecological studies

Phytochemical, pharmacological and clinical studies of Petasites hybridus (L.) P. Gaertn., B. Mey. and Scherb. A reviev

Dependences between the length of vegetation period of field plants and the content and composition of essential oil in celery leaves

Changes of volatile sesquiterpenes and other fungal activity indicator during the growth of Fusarium sambucinum strains

Monoterpene and sesquiterpene hydrocarbons in the fruit essential oil of Phellodendron amurense Rupr.

Amoebicidal activity of alpha-bisabolol, the main sesquiterpene in chamomile (Matricaria recutita L.) essential oil against the trophozoite stage of Acanthamoeba castellani Neff

Analysis of lipophilic fraction from leaves, inflorescences and rhizomes of Silphium perfoliatum L.

Further evaluation of feeding deterrency of sesquiterpene lactones to storage pests

Badanie wplywu woskow powierzchniowych ziemniaka Solanum tuberosum ze szczegolnym uwzglednieniem seskwiterpenow oraz wybranych olejkow eterycznych na zachowanie stonki ziemniaczanej Leptinotarsa decemlineata