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flouve absolute

Flouve absolute is a fragrance extract obtained from Anthoxanthum odoratum, known for its sweet coumarin and herbal hay aroma used mainly in perfumery.

General Material Description

Flouve absolute is an essential fragrance extract derived from the plant species Anthoxanthum odoratum, commonly known as sweet vernal grass. This material appears as a viscous liquid with a distinct odor characterized by sweet, coumarin-like notes combined with herbal and mown hay nuances. It is known under various synonyms such as anthoxanthum odoratum absolute, vanilla grass absolute, and sweet vernal grass absolute. The compound's distinct olfactory signature makes it valuable in fragrance formulations that require fresh, natural grassy or hay-like nuances. This raw material is typically obtained through solvent extraction processes from the flowering grass, aligning with controlled-vocabulary databases like PubChem for chemical reference and verification.

Occurrence, Applicability & Potential Uses

Flouve absolute originates biologically from Anthoxanthum odoratum, a perennial grass widespread in temperate regions. Its unique natural scent has found extensive application as a fragrance agent in perfumes, offering amber, beeswax, and fresh meadow notes. It contributes nuanced green, tobacco-like, and mossy facets in complex fragrance blends. Standards such as IFRA (Global) provide usage restrictions for its components to ensure safe application. These guidelines support formulating with flouve absolute while managing constituents like coumarin under recommended limits.

Physico-Chemical Properties Summary

The solubility of flouve absolute is noted to be high in alcohol solvents, facilitating its integration into alcoholic fragrance compositions, while it shows negligible solubility in water due to its hydrophobic nature. This property influences formulation choices, as the absolute disperses well in ethanol-based carriers but requires emulsification or other incorporation techniques in aqueous systems. Its chemical constituents include natural coumarin derivatives, which contribute to its sweet and herbal aroma profile, and these substances impose certain safety considerations, especially concerning sensitization potential.

FAQ

What is flouve absolute and how is it characterized?
Flouve absolute is an aromatic extract obtained from Anthoxanthum odoratum, known as sweet vernal grass. It is recognized for its sweet, coumarin-like odor combined with herbal and freshly mown hay notes. The material is a viscous liquid used primarily in perfumery. It goes by several synonyms including vanilla grass absolute and anthoxanthum odoratum absolute.
How is flouve absolute used and where does it occur naturally?
Flouve absolute is naturally derived from the perennial grass Anthoxanthum odoratum, commonly found across temperate climates. In use, it serves as a fragrance ingredient to impart amber, tobacco, meadow, moss, and herbal hay nuances in perfumes and scented products. It dissolves well in alcohol solvents, facilitating its inclusion in various fragrance formulations.
What safety regulations and limitations apply to flouve absolute?
Safety assessments classify flouve absolute as harmful if swallowed and recommend wearing protective clothing during handling. Usage restrictions under IFRA (Global) limit the maximum concentration in fragrance formulations to 0.5% to control sensitization risks, particularly due to coumarin content. It is not approved for flavor use. Regulatory data can be referenced through sources like EPA and RIFM for comprehensive safety information.

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Literature & References

anthoxanthum odoratum l. absolute
Canada Domestic Sub. List:68916-09-6
Pubchem (sid):135273495
Publications by PubMed
Sublingual or subcutaneous immunotherapy for seasonal allergic rhinitis: an indirect analysis of efficacy, safety and cost.
Effects of species evenness and dominant species identity on multiple ecosystem functions in model grassland communities.
Variability of stomata and 45S and 5S rDNAs loci characteristics in two species of Anthoxanthum genus: A. aristatum and A. odoratum (Poaceae).
The acceptability of meadow plants to the slug Deroceras reticulatum and implications for grassland restoration.
Increased plant carbon translocation linked to overyielding in grassland species mixtures.
Contrasting patterns of pollen and seed flow influence the spatial genetic structure of sweet vernal grass (Anthoxanthum odoratum) populations.
Glycoproteins are species-specific markers and major IgE reactants in grass pollens.
Within season and carry-over effects following exposure of grassland species mixtures to increasing background ozone.
Selection pressures have caused genome-wide population differentiation of Anthoxanthum odoratum despite the potential for high gene flow.
Community genetics: resource addition has opposing effects on genetic and species diversity in a 150-year experiment.
Relative effects of elevated background ozone concentrations and peak episodes on senescence and above-ground growth in four populations of Anthoxanthum odoratum L.
Specific immunotherapy for common grass pollen allergies: pertinence of a five grass pollen vaccine.
Evolution in closely adjacent plant populations X: long-term persistence of prereproductive isolation at a mine boundary.
Effect of elevated tropospheric ozone on the structure of bacterial communities inhabiting the rhizosphere of herbaceous plants native to Germany.
Soil nutrient heterogeneity interacts with elevated CO2 and nutrient availability to determine species and assemblage responses in a model grassland community.
Growth and nutritive quality of Poa pratensis as influenced by ozone and competition.
Surface-enhanced Raman spectroscopy of bacteria and pollen.
Reinforcement of reproductive isolation between adjacent populations in the Park Grass Experiment.
Preferential uptake of soil nitrogen forms by grassland plant species.
Dicoumarol toxicity in nenonatal calves associated with the feeding of sweet vernal (Anthoxanthum odoratum) hay.
Dicoumarol toxicity in neonatal calves associated with the feeding of sweet vernal (Anthoxanthum odoratum) hay.
Dicoumarol toxicity in cattle associated with ingestion of silage containing sweet vernal grass (Anthoxanthum odoratum).
Aero-allergens in canine atopic dermatitis in southeastern Australia based on 1000 intradermal skin tests.
The type of sensitization to pollens in allergic patients in Eskisehir (Anatolia), Turkey.
IgE antibodies to recombinant pollen allergens (Phl p 1, Phl p 2, Phl p 5, and Bet v 2) account for a high percentage of grass pollen-specific IgE.
A comparison of stable caesium uptake by six grass species of contrasting growth strategy.
Grass pollen immunotherapy induces highly cross-reactive IgG antibodies to group V allergen from different grass species.
Recombinant pollen allergens from Dactylis glomerata: preliminary evidence that human IgE cross-reactivity between Dac g II and Lol p I/II is increased following grass pollen immunotherapy.
Variability of crossreactivity of IgE antibodies to group I and V allergens in eight grass pollen species.
Ecological and evolutionary importance of neighbors in the grass Anthoxanthum odoratum.
Haemorrhagic syndrome of cattle associated with the feeding of sweet vernal (Anthoxanthum odoratum) hay containing dicoumarol.
Metal tolerance in tissue cultures of anthoxanthum odoratum.
RAST, skin and nasal tests and the history in grass pollen allergy.
[Vernal grass, Anthoxanthum odoratum L].

Other Information

Export Tariff Code:3301.90.5000
Wikipedia:View

General Material Information

Preferred name flouve absolute
Trivial Name Oils, Anthoxanthum odoratum
Short Description anthoxanthum odoratum absolute
CAS Number 68916-09-6
FDA UNII Search
Synonyms
  • anthoxanthum odoratum absolute
  • anthoxanthum odoratum var. altissimum absolute
  • anthoxanthum pilosum absolute
  • anthoxanthum villosum absolute
  • flouve odorante absolute
  • vanilla grass absolute
  • sweet vernal grass absolute
  • sweet vernalgrass absolute
  • xanthonanthos odoratum absolute
  • anthoxanthum odoratum l. absolute
  • Oils, Anthoxanthum odoratum
  • Flouve oil
  • Vernal grass

PhysChem Properties

Material listed in food chemical codex No
Solubility
alcohol Yes
water No

Organoleptic Properties

Odor Type: Tonka
sweet, coumarinic, herbal, hay
General comment At 10.00 % in triacetin. sweet coumarin herbal hay

Occurrences

Safety Information

Safety information

European information :
Most important hazard(s):
Xn - Harmful.
R 22 - Harmful if swallowed.
S 36 - Wear suitable protective clothing.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
oral-rabbit LD50 5000 mg/kg
Food and Cosmetics Toxicology. Vol. 16, Pg. 757, 1978.

oral-rat LD50 4100 mg/kg
Food and Cosmetics Toxicology. Vol. 16, Pg. 757, 1978.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
contains the following IFRA (Annex) restricted components: (non-analysis max. level reference only)
coumarin Max. Found: 2.00 % and Reason: Sensitization
benzyl benzoate Max. Found:
Recommendation for flouve absolute usage levels up to:
0.5000 % in the fragrance concentrate.
Recommendation for flouve absolute flavor usage levels up to:
not for flavor use.

Safety references

EPA Substance Registry Services (TSCA):68916-09-6
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
anthoxanthum odoratum l. absolute
Chemidplus:0068916096