Constituents of Cypriol Oil (<i>Cyperus scariosus</i> R.Br.): N-Containing Molecules and Key Aroma Components

Clery, Robin A.; Cason, Julie R. L.; Zelenay, Veronika

doi:10.1021/acs.jafc.6b00680

Cited by 18 publications

(30 citation statements)

References 20 publications

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“…Despite its patchouli‐related name, (−)‐patchoulenone cannot be detected in PEO (Joulain, unpublished). However it does occur in Cyperus species . Consequently, the compounds that have been wrongly identified as "patchoulenone" and "isopatchoulenone" in PEO, still need to be correctly identified.…”

Section: Analytical Investigations Of Patchouli Essential Oilmentioning

confidence: 99%

“…In a review of N‐compounds in essential oils, Maurer cited the original paper by Büchi and consequently drew the epi isomer . The 1 H NMR data from van der Gen was insufficient to make an unambiguous identification but recently the structure was definitely established as 70 . Although guaiol pyridine or epicananodine 117 has been tentatively identified by NMR, its possible formation as an artifact by hydration of 70 (or even from patchouli pyridine 69 ) during the isolation procedure involving strong acid treatment, should not be ruled out.…”

Section: Analytical Investigations Of Patchouli Essential Oilmentioning

confidence: 99%

“…Based on the structural similarity, one could expect the odour of the major pyridine isomer 70 in PEO to be reminiscent of the "green, earthy and carrot‐like" odour of epiguaipyridine, the major pyridine‐sesquiterpene present in Cyperus scariosus essential oil (cypriol) . However this is not borne out by the earlier odour description of 70 as being "weak pyridine‐like" .…”

Section: Odour Of Patchouli Oilmentioning

confidence: 99%

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The essential oil of patchouli,Pogostemon cablin: A review

Beek

Joulain²

2017

Flavour & Fragrance J

114

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The leaves of Pogostemon cablin (Blanco) Benth. (Lamiaceae) are the source of patchouli essential oil, which is -with an annual production of about 1300 tonnes -an important and unique commodity in the fragrance industry. All the literature pertaining to patchouli was critically reviewed with an emphasis on the qualitative and quantitative chemical analysis of the oil but also harvesting, fermentation, drying, distillation, used analytical techniques, sensory aspects including molecules responsible for the odour, adulteration and toxicological aspects, i.e., skin sensitisation, are discussed. In total 72 constituents have been convincingly identified in the oil and another 58 tentatively. The main constituent is the sesquiterpene patchoulol. For this review over 600 papers were consulted and in the supplementary information all patchouli-related references not relevant enough to be cited in the paper itself are listed. 6 It has been stated that "this oil is one of the most important materials available to the perfumer." 7 Approximately 90% of today's global production of 1200-1300 metric tonnes per annum is realised in Indonesia. --------------------------------------------------------------------------------------------------------------------------------This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Analytical Investigations Of Patchouli Essential Oilmentioning

confidence: 99%

Section: Analytical Investigations Of Patchouli Essential Oilmentioning

confidence: 99%

Section: Odour Of Patchouli Oilmentioning

confidence: 99%

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The essential oil of patchouli,Pogostemon cablin: A review

Beek

Joulain²

2017

Flavour & Fragrance J

114

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“…The antioxidant activity of T. flousiana essential oil was measured in terms of radical scavenging activity, using the stable radical DPPH (Sigma-Aldrich, Darmstadt, Germany) [48]. A reaction mixture of 1 mL of a hexane solution of the essential oil with different concentrations (5,10,20,40, and 80 µg/mL) and equal volume of the methanolic solution of 0.3 mM DPPH was prepared, mixed well and incubated under dark condition for 15 min at room temperature. Ascorbic acid (5,10,20,40, and 80 µg/mL) was used as the reference.…”

Section: Determination Of Antioxidant Activitymentioning

confidence: 99%

Chemical Composition, Algicidal, Antimicrobial, and Antioxidant Activities of the Essential Oils of Taiwania flousiana Gaussen

Huang

Yang

et al. 2020

Molecules

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Taiwania flousiana (T. flousiana) Gaussen is a precious wood in the family Taxodiaceae. This study investigated the chemical components of the essential oil from the stem bark of T. flousiana and its algicidal, antifungal, and antioxidant properties. Sixty-nine compounds representing 89.70% of the stem bark essential oil were identified by GC-MS. The essential oil showed strong anti-algae, anti-bacteria, and anti-fungus activities against the tested species, and antioxidant activities. The IC50 values of the essential oil against chlorophyll a, chlorophyll b, and the total chlorophyll of Spirogyra communis (a species of algae), 24–96 h after the treatment, ranged from 31.77 to 84.92 μg/mL, while the IC50 values of butachlor ranged from 40.24 to 58.09 μg/mL. Ultrastructure changes revealed by the transmission electron microscopy indicated that the main algicidal action sites were the chloroplast and cell wall. The essential oil showed antifungal activities on Rhizoctonia solani (EC50 = 287.94 μg/mL) and Colletotrichum gloeosporioiles (EC50 = 378.90 μg/mL). It also showed bactericidal activities on Ralstonia solanacearum and Staphylococcus aureus, with zones of inhibition (ZOIs) being 18.66 and 16.75 mm, respectively at 40 μg/disk. Additionally, the essential oil possessed antioxidant activity estimated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method (IC50 = 33.51 μg/mL; IC50 value of the positive control ascorbic acid was 7.98 μg/mL). Thus, the essential oil of this plant might be used as a possible source of natural bioactive molecules in agrochemical industry as well as in food and cosmetic industries.

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“…11,12 Cananodine was also recently isolated from Cyperus scariosus . 13 Most importantly, cananodine ( 1 ) has activity against both the Hep G 2 and Hep 2,2,15 hepatocarcinoma cell lines, with IC 50 values of 0.22 and 3.8 μg/mL, respectively. 9 This compares favorably to the in vitro activity of sorafenib against Hep G 2 of 2.0 μg/mL.…”

mentioning

confidence: 99%