Ardra produces natural leaf aldehyde using fermentation and it is an essential flavour and perfumery ingredient.

In the food and beverage industry, leaf-aldehyde is employed to replicate flavours such as green apple, berry, citrus, and tomato. Within the fragrance industry, lead-aldehyde imparts a fresh green top-note to floral and fruity fragrances.

Leaf-aldehyde also serves as a natural preservative with antimicrobial and antifungal functions. 

Close up view of a lettuce leaf

The Molecule

trans-2-hexen-1-al, Natural
CAS Number 6728-26-3
Formula weight 98.15 g/mol

Molecule Illustration

When you mow your lawn, the cut grass smell is due to leaf-aldehyde. The scent is commonly associated with freshness and is refreshing.


Green Juice

Flavour ingredient in beverages and food applications


Perfume Bottle

Perfumery ingredients


Dental oral care

Oral care formulations


Air Freshener

Air fresheners


Batch of preserved pickles

Post-harvest preservation of fruits


75% of all leaf-aldehyde produced is used in flavour applications

Food colouring spectrum


  • Natural
  • Kosher
  • Halal
  • Vegan
  • GMO-free
  • GRAS

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Vegetable green juice