Comparison Between the Fresh and Dry Essential Oil of<i>Helichrysum faradifani</i>Scott Elliot from Madagascar

Ralijerson, Lantoniaina B.; Rabehaja, Delphin J. R.; Rajaonarison, Jean François; Urverg, Suzanne Ratsimamanga; Hérent, Marie‐France; Mavar-Manga, Hélène; Tilquin, Bernard

doi:10.1080/10412905.2005.9699007

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…There are large differences between the proportions of the major components in HIOE and those in other Malagasy species. As examples, 1.8-cineole: 69.5% vs 7.1% for H. selaginifolium [17] and 0.7% for H. faradifani [15]; βcaryophyllene: 4.39% vs 46.4% for H. cordifolium [19]; β-pinene: 2.96% vs 38.2% for H. selaginifolium [17); limonene: 0.92% vs 5% for H. bracteiferum and p-cymene: 2.39% vs 4.3% for H. gymnocephalum and sabinene: 0.90% vs 9.8% for H. hypnoides.…”

Section: Discussionmentioning

confidence: 97%

“…H. bracteiferum is considered as a stimulating plant and its ashes are used as a topical on excavated syphilitic wounds [13]. Some Malagasy Helichrysum species including H. faradifani [12,14,15], H. bracteiferum [16,17], H. benthamii, H. dubardii, H. indutum, H. bojerianum, H. diotoides and H. hirtum [18], H. cordifolium, H. hypnoides, H. rusillonii [19], H. gymnocephalum and H. selaginifolium [17], H. aphelexioides, H. triplinerve, H. achyroclinoides, H. lecomtei, H. retrorsum [20] were already studied. However, works focused on the chemical composition of essential oils.…”

Section: Introductionmentioning

confidence: 99%

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Chemical composition and antimicrobial properties of the essential oil from the leaves of Helichrysum ibityense R.Vig. & Humbert (Asteraceae)

Razafiarimanga¹,

Judicael²,

Randriamampianina³

et al. 2021

GSC Biol. and Pharm. Sci.

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The present work aimed to study the composition and antimicrobial properties of the essential oil of Helichrysum ibityense leaves (HIEO). HIEO was extracted by hydrodistillation from fresh leaves with a yield of 1.9%. It had a relative density of 0.9247 at 20℃, a refractive index of 1.4706, an optical rotation of -0°33, an acid index of 2.10 and an ester index of 54. Gas chromatography analysis/flame ionisation detection of HIEO had identified 17 components, representing more than 99.54% of the overall composition of the HIEO including 1.8-cineole (69.46%) the major component, α-terpinene (4.62%), β-caryophyllene (4.39%), α-pinene (4.13%), β-pinene (2.96%), p-cymene (2.39%) and γ-terpinene (2.16%). The HIEO antimicrobial activity was tested against nine pathogenic bacteria including Staphylococcus aureus, Staphylococcus pneumoniae, Streptococcus pyogenes, Clostridium perfringens, Bacillus cereus, Pseudomonas aeruginosa, Enterobacter cloacae, Enterobacter aerogenes, Yersinia enterocolitica, and Candida albicans using the Disc diffusion and the Microdilution assays. HIEO exhibited broad activity spectrum and high microbial activity with inhibition zones (IZ) ranging from 12 to 35 mm. On Bacillus cereus, the most sensitive bacterium, its Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) were 9.37 mg/ml and 13.22 mg/ml respectively. With an MBC/MIC ratio of 1.41, HIEO exerted a bactericidal action on Bacillus cereus. When administered orally to mice at 1000 mg/kg body weight, HIEO caused symptoms of intoxication which disappeared after 24 h. These preliminary results revealed HIEO could be used to treat different infectious diseases if its safety will be confirmed.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Chemical composition and antimicrobial properties of the essential oil from the leaves of Helichrysum ibityense R.Vig. & Humbert (Asteraceae)

Razafiarimanga¹,

Judicael²,

Randriamampianina³

et al. 2021

GSC Biol. and Pharm. Sci.

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“…The current study collected and tested oven‐dried tissues in November (winter); the previous work evaluated fresh tissues in June (summer). Chemical composition, in particular secondary metabolities, or allelochemicals, of plant tissues is known to vary between different environments, season, region and even time of day (Ralijerson et al ., 2005; Randrianalijaona et al ., 2005; Sousa et al ., 2010). The variation in chemical composition among the cultivars, and throughout a growing season, would affect biological activity.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of differential antitermitic activities of Lantana camara oven-dried tissues against Reticulitermes virginicus (Isoptera: Rhinotermitidae)

Yuan

2011

Insect Science

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Chemical‐treated soil or physical barriers have been the most commonly used approach for termite management. We hypothesized that a barrier of soil incorporated with oven‐dried Lantana camara L. tissues could prevent termite infestation. We first examined the antitermitic effects of the dried tissues from two cultivars (‘Mozelle’ and ‘New Gold’) on the subterranean termite, Reticulitermes virginicus (Banks) (Isoptera: Rhinotermitidae). Results show that all of the tissues of Mozelle had greater antitermic activity than corresponding tissues of New Gold, and leaves had greater termiticidal effects than flowers and stems. When termites were exposed to the test materials in a no‐choice bioassay, the 24‐day test resulted in a significant reduction of survival (52.5%–88.6%), running speed (18.2%–37.3%), live weight (21.8%–53.5%) and body water content (33.2%–56.2%) compared to the control. The consumption of leaves and flowers was exiguous. When used as 25% tissue mulch‐barrier, the oven‐dried lantana tissues decreased termite tunneling and wood consumption and increased termite mortality. The decreased survival, vigor, and low consumption indicate a toxic and anti‐feeding property of the materials tested. The results therefore support our hypothesis that the dried lantana tissues possess antitermitic activities.

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Chemical composition and insecticidal activity of the essential oil from Helichrysum faradifani endemic to Madagascar

Benelli

Pavela

Rakotosaona

et al. 2017

Natural Product Research

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Helichrysum faradifani (Asteraceae) is a perennial shrub growing in rocky and sandy places of Madagascar. The plant is used in the Malagasy traditional medicine as a wound-healing agent, disinfectant and for the treatment of syphilis, diarrhea, cough and headache. In the present work, we analysed the chemical composition of the essential oil distilled from the aerial parts of H. faradifani by GC-MS and evaluated its insecticidal activity against 2nd, 3rd and 4th instar larvae of the lymphatic filariasis vector Culex quinquefasciatus by acute toxicity assays. The most sensitive were 2nd instar (LC = 85.7 μL L) larvae. For the 3rd and 4th instar larvae, the estimated LC were 156.8 and 134.1 μL L, respectively. Monoterpene hydrocarbons (51.6%) were the major fraction of the essential oil, with the bicyclic α-fenchene (35.6%) as the predominant component. Sesquiterpene hydrocarbons (34.0%) were the second major group characterising the oil, with γ-curcumene (17.7%) as the most abundant component.

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Comparison Between the Fresh and Dry Essential Oil ofHelichrysum faradifaniScott Elliot from Madagascar

Cited by 6 publications

References 4 publications

Chemical composition and antimicrobial properties of the essential oil from the leaves of Helichrysum ibityense R.Vig. & Humbert (Asteraceae)

Chemical composition and antimicrobial properties of the essential oil from the leaves of Helichrysum ibityense R.Vig. & Humbert (Asteraceae)

Evaluation of differential antitermitic activities of Lantana camara oven-dried tissues against Reticulitermes virginicus (Isoptera: Rhinotermitidae)

Chemical composition and insecticidal activity of the essential oil from Helichrysum faradifani endemic to Madagascar

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