Characterization and Analysis of Volatile Fingerprint of 13 Different Commercial Essential Oils with GC-MS and Chemical Gas Sensors

Núñez-Carmona, Estefanía; Abbatangelo, Marco; Sberveglieri, Veronica

doi:10.20944/preprints201809.0568.v1

Cited by 2 publications

(2 citation statements)

References 43 publications

(52 reference statements)

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“…Other compounds that have been identified in this work, which do not appear to have been previously reported in ginger, included limonene glycol and neryl laurate ( Table SM1 ). Limonene glycol has been found in a variety of plants, including oil from the conifer Torreya grandis ( Niu et al, 2010 ) and cardamom oil ( Núñez-Carmona et al, 2018 ). This compound can be produced from the hydrolysis of limonene oxide, which in turn is produced by the oxidation of limonene.…”

Section: Resultsmentioning

confidence: 99%

Pungent and volatile constituents of dried Australian ginger

Johnson

Mani

White

et al. 2021

Current Research in Food Science

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Ginger is well known for its pungent flavour and health-benefitting properties, both of which are imparted by various gingerol derivatives and other volatile constituents. Although there has been a considerable amount of research into the chemical constituents found in fresh ginger, there is little information available on the quality of Australian-grown dried ginger, particularly that intended for processing purposes. Here, we investigate differences in the chemical composition of three samples of processing-grade ginger, ranging from very poor to good quality. Gingerols and 6-shogaol were quantified using high performance liquid chromatograph (HPLC), while gas chromatography coupled with mass spectrometry (GC-MS) was used to identify and semi-quantify the volatile constituents and other gingerol derivatives. Significant differences were found between the samples in their content of gingerols and [6]-shogaol, as well as in their total phenolic content and antioxidant capacity. A total of 100 volatile compounds were identified in the dried ginger samples, including 54 terpenoid derivatives and 35 gingerol derivatives. Several compounds are reported from ginger for the first time, including limonene glycol and neryl laurate. In addition, we provide the second report of the presence of shyobunol, geranyl- p -cymene and geranyl-α-terpinene in ginger.

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Section: Resultsmentioning

confidence: 99%

Pungent and volatile constituents of dried Australian ginger

Johnson

Mani

White

et al. 2021

Current Research in Food Science

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“…Finally, 2-Butanol, 3,3’-oxybis- was identified among the bacterial supernatant, which was reported as a prevalent volatile organic compound emission from all regular essential oils such as orange, coriander, thyme, and jasmine essential oils, which have strong antimicrobial activity against several bacterial pathogens [ 47 , 48 , 49 ].…”

Section: Discussionmentioning

confidence: 99%

Seed Endophytic Achromobacter sp. F23KW as a Promising Growth Promoter and Biocontrol of Rhizoctonia Root Rot of Fenugreek

et al. 2022

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Root rot is one of the most significant soil and seed-borne fungal diseases, limiting the cultivation of fenugreek plants. Endophytic bacteria and their natural bioproducts have emerged as growth promoters and disease suppressors in the current era. Despite limited research, seeds are a good funder of endophytic microbiomes, which are transmitted from them to other seedling parts, thereby providing a shield against biotic and abiotic anxiety and promoting the growth at early germination and later stages. The current study evaluated the hypothesis that seed endophytic bacteria and their lytic enzymes, growth promotors, and antifungal molecules can induce growth, and inhibit root rot disease development at the same time. The isolation trial from fenugreek seeds revealed a lytic Achromobacter sp., which produces indole acetic acid, has antifungal compounds (e.g., 2-Butanol, 3,3’-oxybis-), and reduces the growth of Rhizoctonia solani by 43.75%. Under the greenhouse and natural field conditions, bacterial cells and/or supernatant improved the growth, physiology, and yield performance of fenugreek plants, and effectively suppressed the progress of root rot disease; this is the first extensive study that uses a new seed-borne endophytic bacterium as a plant-growth-promoting, and biocontrol tool against the sclerotia-forming; R. solani; the causative of fenugreek root rot.

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Characterization and Analysis of Volatile Fingerprint of 13 Different Commercial Essential Oils with GC-MS and Chemical Gas Sensors

Cited by 2 publications

References 43 publications

Pungent and volatile constituents of dried Australian ginger

Pungent and volatile constituents of dried Australian ginger

Seed Endophytic Achromobacter sp. F23KW as a Promising Growth Promoter and Biocontrol of Rhizoctonia Root Rot of Fenugreek

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