Ageing behaviour and analytical characterization of the Jatobá resin collected from Hymenaea stigonocarpa Mart.

Doménech‐Carbó, María Teresa; Cruz-Cañizares, Juana de la; Osete-Cortina, Laura; Doménech‐Carbó, Antonio; David, H Dockrell

doi:10.1016/j.ijms.2008.12.015

Cited by 27 publications

(16 citation statements)

References 34 publications

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“…In addition, peak 1 showed the base peak at m/z 191 formed by cleavage of the C9-C11 bond, as a result it was identified as the methyl labd-8-enoate. This compound had been previously characterized by Domenech-Carbo et al [24] and David et al [25]. According to Enzell and Ryhage [23], a characteristic fragmentation of labdanes having a C8-C17 double bond is the cleavage of the allylic C6-C7 and C9-C10 bonds accompanied by hydrogen transfer producing an intense ion at m/z 137, which was detected in mass spectrum of peak 2 (Fig.…”

Section: Fatty Acid Composition Of Cistus Ladanifermentioning

confidence: 87%

Cistus ladanifer L. Shrub is Rich in Saturated and Branched Chain Fatty Acids and their Concentration Increases in the Mediterranean Dry Season

Guerreiro

Alves

Duarte

et al. 2015

Lipids

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The Cistus ladanifer L. shrub is a widespread species of the Mediterranean region that is available as a feed source for ruminants all the year round, constituting a source of energy and nutrients when most of the vegetation is dry. However, there is no trustworthy information about the fatty acid composition of C. ladanifer, as well as no information about the seasonal and age related changes in their fatty acid composition. Thus, we collected the aerial parts of C. ladanifer plants of two age groups [young vs. older ones (2-6 years old)] during four consecutive seasons to characterize their fatty acid composition. The fatty acid composition of C. ladanifer is dominated by saturated fatty acids including the occurrence of two methyl branched chain fatty acids (BCFA), the iso-19:0 and iso-21:0, which as far as we know were detected for the first time in shrubs. Also, we demonstrated that several labdane type compounds might interfere with the fatty acid analysis of C. ladanifer. Marked seasonal changes in BCFA and polyunsaturated fatty acids (PUFA) were found, suggesting that BCFA can replace PUFA in plant lipids at high environmental temperatures.

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Section: Fatty Acid Composition Of Cistus Ladanifermentioning

confidence: 87%

Cistus ladanifer L. Shrub is Rich in Saturated and Branched Chain Fatty Acids and their Concentration Increases in the Mediterranean Dry Season

Guerreiro

Alves

Duarte

et al. 2015

Lipids

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show abstract

“…5), the inhibition activity of them on calcineurin and GSK-3β were examined further in vitro [7,21]. Aristolochia cymbifera [14][15][16] and Hymenaea stigonocarpa Mart [17][18][19], although 1 was isolated as a natural product for the first time [13]. GSK-3β is involved in the molecular pathogenesis of human diseases such as type-2 diabetes, Alzheimer's disease and cancer [33].…”

Section: Resultsmentioning

confidence: 99%

“…Active fractions were collected and concentrated under reduced pressure to afford crude material [2.3 g (0.9 %)] which was further purified using HPLC. HPLC was used for analysis of active fractions and major three peaks having activity were identified ( Table 1(c) [17][18][19]. The Rf value was 0.43 on silica gel TLC using a solvent system of hexane-EtOAc (3:1).…”

Section: Isolation Of Biological Active Compounds From Dominican Ambermentioning

confidence: 99%

Yeast Ca2+-signal transduction inhibitors isolated from Dominican amber prevent the degranulation of RBL-2H3 cells through the inhibition of Ca2+-influx

et al. 2016

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A new norlabdane compound, named kujigamberol has previously been isolated from Kuji amber (but not from Baltic amber) by activity guided fractionation. However, there has been no study of biological compounds in Dominican amber. Biological activities were examined using the hypersensitive mutant yeast (zds1Δ erg3Δ pdr1Δ pdr3Δ) with respect to Ca(2+)-signal transduction, enzymes and rat basophilic leukemia (RBL)-2H3 cells. The structures were elucidated on the basis of spectral analysis including high resolution (HR)-EI-MS, 1D NMR and 2D NMR. Three diterpenoid compounds, 5(10)-halimen-15-oic acid (1), 3-cleroden-15-oic acid (2) and 8-labden-15-oic acid (3), which are different from the bioactive compounds in Kuji and Baltic ambers, were isolated from Dominican amber. They inhibited both calcineurin (CN) (IC50=40.0, 21.2 and 34.2μM) and glycogen synthase kinase-3β (GSK-3β) (IC50=48.9, 43.8 and 41.1μM) which are involved in the growth restored activity against the mutant yeast. The most abundant compound 2 showed inhibitory activity against both degranulation and Ca(2+)-influx in RBL-2H3 cells. The compounds having the growth restoring activity against the mutant yeast have potential as anti-allergic compounds.

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“…For resinous materials in general, an optimized temperature is not agreed upon. Temperatures of 600-650°C or higher have been reported frequently [9][10][11][12]17,31,24,32,33]. Also a double shot method combining a lower temperature thermal desorption at 250 or 300 °C, followed by high temperature pyrolysis (600 or 610°C) has been used successfully by some authors [7,18,34]; 550°C is also applied for varnish and lacquer analysis [3,8,35].…”

Section: Introductionmentioning

confidence: 99%

The analysis of European lacquer: optimization of thermochemolysis temperature of natural resins

Decq¹,

Lynen²,

Schilling³

et al. 2017

inArt 2016

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Ageing behaviour and analytical characterization of the Jatobá resin collected from Hymenaea stigonocarpa Mart.

Cited by 27 publications

References 34 publications

Cistus ladanifer L. Shrub is Rich in Saturated and Branched Chain Fatty Acids and their Concentration Increases in the Mediterranean Dry Season

Cistus ladanifer L. Shrub is Rich in Saturated and Branched Chain Fatty Acids and their Concentration Increases in the Mediterranean Dry Season

Yeast Ca2+-signal transduction inhibitors isolated from Dominican amber prevent the degranulation of RBL-2H3 cells through the inhibition of Ca2+-influx

The analysis of European lacquer: optimization of thermochemolysis temperature of natural resins

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