scholarly journals Headspace volatiles of Chaerophyllum aureum L.

2015 ◽  
Vol 13 (2) ◽  
pp. 133-140 ◽  
Author(s):  
Jelena Stamenkovic ◽  
Ivana Radojkovic ◽  
Goran Petrovic ◽  
Gordana Stojanovic ◽  
Aleksandra Djordjevic
Keyword(s):  
Gas Chromatography Mass Spectrometry ◽  
Headspace Volatiles ◽  
Multivariate Statistical ◽  
Dried Fruits ◽  
Headspace Volatile ◽  
Aerial Parts ◽  
Volatile Profiles ◽  
First Time ◽  
Head Space Gas Chromatography ◽  
Insight Into

Differences in the headspace volatile profiles (HS) of fresh and air-dried fruits, stems and aerial parts of Chaerophyllum aureum L. (Apiaceae) were studied here for the first time using HS-GC-MS (head space - gas chromatography - mass spectrometry). This was done in order to probe to which level HS volatiles of different plant organs were susceptible to air drying. The most dominant headspace volatiles of all samples were monoterpene hydrocarbons. Sabinene was the major volatile of the fresh aerial parts, air-dried fruits, fresh and air-dried stems, representing 47.8%, 31.4%, 67.7% and 73.0% of the total volatiles, respectively. The most abundant headspace volatiles of the fresh fruits were terpinolene (45.3%), ?-terpinene (13.1%) and ?-pinene (10.2%). The air-dried aerial parts were characterized by a high amount of limonene (69.0%). The results of HS-GC-MS were subjected to multivariate statistical analysis in order to get a better insight into the similarities/dissimilarities existing between the investigated samples. According to the results of multivariate analysis, the drying process significantly influenced HS volatiles.

Identification by Gas Chromatography-Mass Spectrometry of 150 Compounds in Propolis

1991 ◽  
Vol 46 (1-2) ◽  
pp. 111-121 ◽  
Author(s):  
W. Greenaway ◽  
J. May ◽  
T. Scaysbrook ◽  
F. R. Whatley
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Alcoholic Extract ◽  
Headspace Volatiles ◽  
Chromatography Mass Spectrometry ◽  
First Time

Abstract Propolis was analyzed by gas chromatography-mass spectrometry for both its headspace volatiles and for the less volatile components of its alcoholic extract (propolis balsam). 181 peaks were located of which 171 representing 150 compounds were identified, including 28 identified in propolis for the first time. The majority of compounds were typical of poplar bud exudate.

scholarly journals Chemical Characterization of Capsule-Brewed Espresso Coffee Aroma from the Most Widespread Italian Brands by HS-SPME/GC-MS

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1166
Author(s):  
Veronica Lolli ◽  
Animesh Acharjee ◽  
Donato Angelino ◽  
Michele Tassotti ◽  
Daniele Del Rio ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Chemical Characterization ◽  
Gas Chromatography Mass Spectrometry ◽  
Multivariate Statistical ◽  
Espresso Coffee ◽  
Volatile Profiles ◽  
Few Data ◽  
Selection Of

Coffee capsules market is on the rise as it allows access to a wide selection of coffee, differing in taste and brand. However, few data about the chemical characterization of the capsule-brewed coffee aroma are available. In this work, an untargeted approach using headspace solid-phase microextraction (HS-SPME) coupled to gas chromatography–mass spectrometry (GC-MS) and combined to chemometrics was performed to study and compare aroma profile from 65 capsule-brewed espresso coffees (ECs) commercialized by five of the most representative brands in Italy. Volatile profiles obtained from ECs were subjected to multivariate statistical analysis, which generally did not show a significant variability among coffees belonging to the same brand, except for those modified after the addition of specific flavor additives or aromatic substances (such as caramel, chocolate, etc.). Similarities may be related to the starting coffee brew or the processing method, which is likely the same for each individual brand. Additionally, partial least squares discriminant analysis (PLS-DA) showed that capsules from a specific brand contain the highest concentration of pyrazines, thus characterized by an intense and characteristic aroma, and a stronger note than those from the other brands. This study supports that the chemical analysis in conjunction with chemometric tools is a useful approach for assessing flavor quality, even if the need remains to identify volatile markers of high-quality beverages.

scholarly journals Alkaloids from Mongolian species of Peganum multisectum (Maxim) Bobrov

2016 ◽  
Vol 16 ◽  
pp. 48-53 ◽  
Author(s):  
S. Javzan ◽  
D. Selenge ◽  
N. Amartuvshin ◽  
D. Nedelcheva ◽  
V Christov ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
13C Nmr ◽  
Gas Chromatography Mass Spectrometry ◽  
Nmr Analysis ◽  
1H And 13C Nmr ◽  
Aerial Parts ◽  
13C Nmr Analysis ◽  
Pure Compounds ◽  
First Time

Alkaloids of the aerial parts of P. multisectum (Maxim) Bobrov (Zygophyllaceae) growing in Mongolia have been studied by capillary Gas Chromatography-Mass Spectrometry (GC-MS) and Column Chromatography (CC). Four compounds comprising of 2-methylquinoline (1), 9-amino-2, 3,5,6,7,8-hexahydro-1H-cyclopenta [b] quinoline (2), vasicinone (3) and harmine (4) have been determined by GC-MS, while harmine (4), peganine (5), deoxypeganine (6), deoxyvasicinone (7) and harmane (8) were isolated as pure compounds by the CC. The structures of the five alkaloids 4, 5, 6, 7 and 8 were elucidated by the MS and 1H and 13C NMR analysis. The alkaloids 1, 2 and 8 were identified for the first time from this species.Mongolian Journal of Chemistry 16 (42), 2015, 48-53

scholarly journals Re-Analysis of Abdominal Gland Volatilome Secretions of the African Weaver Ant, Oecophylla longinoda (Hymenoptera: Formicidae)

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 871
Author(s):  
Bethelihem Mekonnen ◽  
Xavier Cheseto ◽  
Christian Pirk ◽  
Abdullahi Yusuf ◽  
Sunday Ekesi ◽  
...  
Keyword(s):  
Solid Phase ◽  
Biological Control Agent ◽  
Control Agent ◽  
Gas Chromatography Mass Spectrometry ◽  
Headspace Volatiles ◽  
Weaver Ant ◽  
Oecophylla Longinoda ◽  
Sternal Glands ◽  
Poison Glands ◽  
First Time

The African weaver ant, Oecophylla longinoda, is used as a biological control agent for the management of pests. The ant has several exocrine glands in the abdomen, including Dufour’s, poison, rectal, and sternal glands, which are associated with pheromone secretions for intra-specific communication. Previous studies have analyzed the gland secretions of Dufour’s and poison glands. The chemistry of the rectal and sternal glands is unknown. We re-analyzed the secretions from Dufour’s and poison glands plus the rectal and sternal glands to compare their chemistries and identify additional components. We used the solid-phase microextraction (SPME) technique to collect gland headspace volatiles and solvent extraction for the secretions. Coupled gas chromatography–mass spectrometry (GC-MS) analysis detected a total of 78 components, of which 62 were being reported for the first time. These additional components included 32 hydrocarbons, 12 carboxylic acids, 5 aldehydes, 3 alcohols, 2 ketones, 4 terpenes, 3 sterols, and 1 benzenoid. The chemistry of Dufour’s and poison glands showed a strong overlap and was distinct from that of the rectal and sternal glands. The different gland mixtures may contribute to the different physiological and behavioral functions in this ant species.

Application of gas chromatography-mass spectrometry and chemometrics methods for assessing volatile profiles of Pu-erh tea with different processing methods and ageing years

RSC Advances ◽  
2015 ◽  
Vol 5 (107) ◽  
pp. 87806-87817 ◽  
Author(s):  
Shidong Lv ◽  
Yuanshuang Wu ◽  
Jifu Wei ◽  
Ming Lian ◽  
Chen Wang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Gas Chromatography Mass Spectrometry ◽  
Multivariate Statistical Methods ◽  
Multivariate Statistical ◽  
Chromatography Mass Spectrometry ◽  
Different Types ◽  
Volatile Profiles

A method was developed based on head-space solid phase microextraction/gas chromatography-mass spectrometry (HS-SPME/GC-MS) combined with multivariate statistical methods to assess volatile profiles in different types of Pu-erh teas.

scholarly journals GC-MS Analysis of Insecticidal Essential Oil of Aerial Parts ofEchinops latifoliusTausch

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Xin Chao Liu ◽  
Xianghong Hao ◽  
Ligang Zhou ◽  
Zhi Long Liu
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Flowering Stage ◽  
Aerial Parts ◽  
Natural Insecticide ◽  
First Time ◽  
Insecticidal Activities

The roots ofEchinops latifoliusTausch (Asteraceae) have been used in the traditional medicine. However, no report on chemical composition and insecticidal activities of the essential oil of this plant exists. The aim of this research was to determine chemical composition and insecticidal activities of the essential oil ofE. latifoliusaerial parts against maize weevils (Sitophilus zeamaisMotschulsky) for the first time. Essential oil ofE. latifoliusaerial parts at flowering stage was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 35 components of the essential oil ofE. latifoliusaerial parts were identified. The major compounds in the essential oil were 1,8-cineole (19.63%), (Z)-β-ocimene (18.44%), andβ-pinene (15.56%) followed byβ-myrcene (4.75%) and carvone (4.39%). The essential oil ofE. latifoliuspossessed contact toxicity againstS. zeamaiswith an LD50value of 36.40 µg/adult. The essential oil also exhibited fumigant toxicity againstS. zeamaiswith an LC50value of 9.98 mg/L. The study indicates that the essential oil ofE. latifoliusaerial parts has a potential for development into a natural insecticide/fumigant for control of insects in stored grains.

scholarly journals Geographical based variations in white truffle Tuber magnatum truffle aroma is explained by quantitative differences in key volatile compounds

2020 ◽  
Author(s):  
Jun Niimi ◽  
Aurélie Deveau ◽  
Richard Splivallo
Keyword(s):  
Volatile Compounds ◽  
Fruiting Body ◽  
Geographic Area ◽  
Gas Chromatography Mass Spectrometry ◽  
List Type ◽  
Fruiting Bodies ◽  
Headspace Volatile ◽  
Microbiome Composition ◽  
Tuber Magnatum ◽  
Volatile Profiles

SummaryThe factors that vary the aroma of Tuber magnatum fruiting bodies are poorly understood. The study determined the headspace aroma composition, sensory aroma profiles, maturity, and microbiome composition from T. magnatum originating from Italy, Croatia, Hungary, and Serbia, and tested if truffle aroma is dependent on provenance and if fruiting body volatiles are explained by maturity and/or microbiome composition.Headspace volatile profiles were determined by gas chromatography-mass spectrometry-olfactometry (GC-MS-O) and aroma of fruiting body extracts were sensorially assessed. Fruiting body maturity were estimated through spore melanisation. Bacterial community was determined using 16S rRNA amplicon sequencing.Main odour active compounds were present in all truffles but varied in concentration. Aroma of truffle extracts were sensorially discriminated by sites. However, volatile profiles of individual fruiting bodies varied more within sites than across geographic area, while maturity level did not play a role. Microbiome composition varied highly and was partially explained by provenance. A few rare bacterial operational taxonomical units associated with select few non-odour active volatile compounds.Specificities of the aroma of T. magnatum truffles are more likely linked to individual properties than provenance. Some constituents of the microbiome may provide biomarkers of provenance and be linked to non-odour active volatiles.

scholarly journals Evaluation of Volatile Constituents of Cochlospermum angolense

2012 ◽  
Vol 7 (5) ◽  
pp. 1934578X1200700
Author(s):  
Michele Leonardi ◽  
Silvia Giovanelli ◽  
Pier Luigi Cioni ◽  
Guido Flamini ◽  
Luisa Pistelli
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Germacrene D ◽  
Volatile Profiles ◽  
Leaves And Roots ◽  
First Time ◽  
Root Essential Oil

The chemical composition of the essential oils obtained from the leaves and roots of Cochlospermum angolense (Welw) growing wild in Angola was analyzed for the first time by capillary gas chromatography (GC) and gas chromatography/mass spectrometry (GC-MS). The investigation led to the identification of 67 and 130 compounds from the leaves and roots, respectively. Both oils were strongly characterized by the presence of sesquiterpenoids (68.8% in the leaves and 53.2% in the roots), while monoterpenoids were present in minor percentages (9.8% in the leaves and 26.2% in the root). The main constituents of the leaves were germacrene D (9.4%), α-cadinol (7.4%) and 10- epi-cubenol (6.2%), while the most abundant compounds in the root essential oil were the sesquiterpenes β-caryophyllene (19.7%) and isoborneol (6.6%). The analysis by HS-SPME of the roots, leaves, fruits and seeds were also reported for the first time. Different volatile profiles were detected.

scholarly journals Comparative Analysis of the Essential Oils from two Asteraceous Plants Found in Nigeria, Acanthospermum Hispidum and Tithonia Diversifolia

2008 ◽  
Vol 3 (10) ◽  
pp. 1934578X0800301
Author(s):  
Adebayo A. Gbolade ◽  
Daniela M. Biondi ◽  
Giuseppe Ruberto
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Comparative Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
Gas Chromatography Mass Spectrometry ◽  
Tithonia Diversifolia ◽  
Aerial Parts ◽  
Monoterpene Hydrocarbons ◽  
First Time

The essential oils from two members of the Asteraceae ( Acanthospermum hispidum DC. aerial parts, and leaves of Tithonia diversifolia (Hemsley) A. Gray), growing wild in Osun State, Nigeria, have been characterised by combined gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. Twenty-nine components have been fully identified and grouped into monoterpene hydrocarbons (22.2%), oxygenated monoterpenes (4.6%), sesquiterpenes hydrocarbons (58.2%) and oxygenated sesquiterpenes (10.8%) in A. hispidum. The main constituents of the oil were β-caryophyllene (28.0%), α-pinene (15.9%) and bicyclogermacrene (11.0%) among the hydrocarbon compounds, and bisabolol (8.9%) and carvacrol methyl ether (4.1%) among the oxygenated components. Tithonia diversifolia essential oil comprised seventeen components and was characterised by a predominant content of monoterpene hydrocarbons (87.9%), cis-β-ocimene (43.7%), α-pinene (28.6%) and limonene (12.0%) being the main compounds. Sesquiterpenes represented ca. 10% oil, as sum of hydrocarbons and oxygenated components. A new chemotype is established for T. diversifolia, while the Nigerian A. hispidum is being reported for the first time as a new source of essential oil with some distinction in composition from those of other sources.

scholarly journals Volatile Organic Compounds of six French Dryopteris Species: Natural Odorous and Bioactive Resources

2014 ◽  
Vol 9 (1) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Didier Froissard ◽  
Sylvie Rapior ◽  
Jean-Marie Bessière ◽  
Alain Fruchier ◽  
Bruno Buatois ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Odor Threshold ◽  
Pharmacological Activities ◽  
Aerial Parts ◽  
Volatile Organic ◽  
Phloroglucinol Derivatives ◽  
Lipid Derivative ◽  
First Time

Aerial parts of six Dryopteris species collected in France were investigated for volatile organic compounds (VOC) for the first time. Fifty-three biosynthesized VOC from the shikimic, lipidic and terpenic pathways were identified using gas chromatography/mass spectrometry. Many bioactive polyketide compounds as filicinic derivatives (from 8.5 to 23.5%) and phloroglucinol derivatives (from 8.2 to 53.8%) with various pharmacological activities were detected in high amount from five analysed Dryopteris species, in particular D. oreades and D. borreri, i.e., propionylfilicinic acid (> 10% in D. affinis and D. ardechensis) and 2,6-dihydroxy-4-methoxy-3-methylbutyrophenone (aspidinol) (19.1% and 14.6% in D. oreades and D. borreri, respectively). Several terpenic derivatives with a low odor threshold were identified, i.e., carota-5,8-diene (from 2.5 to 18.4%: floral, woody or fresh bark note), ( E)-nerolidol (> 10% for D. borreri and D. cambrensis; floral or woody odor), α-selinene (> 7% for D. ardechensis; woody-spicy odor), and aristolene (12.8% in D. affinis; flower, sweet odor). The main isoprenoid derivatives were 4-hydroxy-5,6-epoxyionol, 3-oxo-α-ionol and 4-oxo-7,8-dihydro-β-ionone (essentially in D. remota), whereas the main aromatic compound was 4-hydroxy-3-methoxyacetophenone (20.6% and 12.6% in D. cambrensis and D. borreri, respectively) and the main lipid derivative was 1-octen-3-ol with a mushroom-like odor (from 0.4 to 8.3%). Dryopteris species resources are of great interest as a reservoir of odorous and bioactive compounds.

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