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Type: Article

Section: Fragrance > Ingredients

iso-Valeric acid makes a subtle, but very useful, contribution to hazelnut flavors at 100 ppm.

iso-Valeric Acid in Dairy, Brown, Nut, Savory, Alcoholic Drink & Fruit Flavors

The profile of iso-valeric is very much stereotypical of the primary cheese odor, without any hint of the faint goaty character that starts to creep into the series of aliphatic acids from six carbon atoms upwards.

HESP—A New Essential Oil From the Acid Hydrolysate of Spent Sandal Heartwood

In the present study, the utilization of the spent (exhausted) sandalwood powder from steam distillation as a source of an acid hydrolysate oil is examined. It has been found that hydrolysis of the non-volatile portion of an acetone extract of the spent sandalwood powder with methanolic hydrochloric acid followed by steam distillation gave rise to a new essential oil (1.2% yield) which we have called HESP, the acronym for hydrolyzed exhausted sandalwood powder.

Resin Acid in Tree Moss Extract

Lichens are symbiotic organisms of fungi and algae. The biological significance of lichens and their metabolites has been reviewed by Huneck, who even stated that “good perfumes require lichen extracts.”

Aleuritic Acid in Perfumery and Pheromones

The brief account given above indicates the vast potential which aleuritic acid holds in the synthesis of numerous useful organic compounds possessing olfactory properties. With a steady and substantial availability of threo aleuritic acid, its utility is expected to increase enormously.

Fragrant Esters of 3-Cyclohexylbutanoic Acid

Thus, the acid is not too easily available, but remarkable fragrant properties of its esters raise the interest in its production. The first four stages of its synthesis have been described previously. Prin’s reaction of α-methylstyrene with formaldehyde yields 4-methyl-4-phenyl-1,3-dioxane.

Natural Aroma Chemicals: Nothing New Under the Sun?

The resurgence of naturals and ongoing innovations in organic chemistry.

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New Natural Aroma Chemicals

Sigma-Aldrich® brand aroma chemicals naturally impart the perfect notes for your formulation.

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Editor's Note: Natural Matters

Perhaps, the definition of natural may never be finite. Maybe, just like humans, science, technology and the world at large, the definition will continue to evolve.

Comparing Notes: Perfectly Natural

From violet leaf to Periploca sepium, traditional and emerging naturals alike drive creativity in perfumery

Narcissus poeticus: The Heart Note

Olfactive aspects, chemical composition, extraction, economics and ethnobotany

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Editor's Note: A Natural Debate

As the demand for naturals grow, the industry is challenged with balancing an authentic natural product with sustainable and safe processes.

New Sources of Natural Safrole

Safrole is a phenylether (Figure l) which occurs as a component of the volatile oil in many plant species. In its pure form, it is a mobile liquid with a camphoraceous aroma at ambient temperature.

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Editor's Note: A Natural Conversation

As the muse of F&F, naturals are the headliner on the product label. In the last issue, we explored the safety, sustainability and efficiency of synthetics. This issue features creativity in research and application inspired by naturals.

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Editor's Note: Nature’s Sensory Bounty

One of the most valuable aspects of the F&F industry is its close proximity to the natural world and the hands that cultivate, distill and formulate its essences. How are you telling these stories to the world?

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New in Niche: White-Space Citrus

Why are current trends in niche perfumery placing citrus notes at the forefront of innovation?

Travel Notes: Natural Aroma Chemicals

Axxence expands its ingredient range.

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Editor's Note: What’s Old is New

As the climate crisis puts the natural world in peril, much of humanity feels more aligned with it than ever before.

2014 World Perfumery Congress Exhibition News & Notes

Photos and company news gathered from the exhibition floor.

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