Hexyl Hexanoate (CAS 6378-65-0/FEMA:2572) – Comprehensive Flavor Applications
Sensory Profile
Sweet fruity, green apple, pear, banana-like, pineapple-like, tropical fruit, juicy fruit flesh, fruit skin, mildly waxy, wine-like fruity.
Technical Characteristics
| Property | Description |
|---|---|
| Odor Strength | Medium–strong |
| Volatility | Moderate |
| Stability | Good |
| Flavor Function | Fruity body builder |
| Note Position | Upper heart note |
| Natural Occurrence | Apple, pear, pineapple, guava, passionfruit, strawberry, wine |
Primary Functions
Adds juiciness, fruit flesh, fruit skin realism, natural sweetness, orchard freshness, body, volume, and persistence while reducing thin, artificial, or overly sharp fruit profiles.
Applications by Flavor Type
| Flavor | Function | Typical Level in Flavor |
|---|---|---|
| Apple | Fresh-cut apple, apple skin, juicy flesh, orchard freshness | 0.2–3.0% |
| Pear | Juicy pear flesh, Williams pear realism, sweetness | 0.1–2.0% |
| Pineapple | Natural fruit flesh, ripe body, reduced candy character | 0.05–1.0% |
| Banana | Green peel freshness, natural banana complexity | 0.02–0.5% |
| Strawberry | Fruit skin realism, juicy top note, natural freshness | 0.02–0.3% |
| Peach | Juicy flesh, natural fruit body | 0.05–0.5% |
| Apricot | Sweet flesh, ripe fruit body | 0.05–0.5% |
| Mango | Juicy ripe fruit, tropical sweetness, volume | 0.02–0.5% |
| Guava | Tropical flesh, juicy center | 0.1–1.0% |
| Passionfruit | Tropical fruit body, sweet flesh | 0.05–0.5% |
| Honeydew Melon | Juicy flesh, sweetness, body | 0.02–0.3% |
| Hami Melon | Fruit flesh realism, juiciness | 0.02–0.3% |
| Cantaloupe | Sweet ripe melon body | 0.02–0.3% |
| Grape | Natural grape flesh, juicy realism | 0.02–0.2% |
| Raspberry | Juicy berry body | 0.01–0.2% |
| Blackberry | Sweet berry flesh | 0.01–0.2% |
| Blueberry | Fruit volume, sweetness | 0.01–0.2% |
| Mixed Berry | Berry flesh and juiciness | 0.01–0.2% |
| Papaya | Ripe tropical flesh | 0.05–0.5% |
| Lychee | Juicy fruit body | 0.01–0.1% |
| Longan | Sweet fruit flesh | 0.01–0.1% |
| Dragon Fruit | Body and juicy center | 0.02–0.2% |
| Plum | Flesh realism and sweetness | 0.02–0.5% |
| Cherry | Natural fruit body | 0.02–0.5% |
| Nectarine | Juicy stone-fruit flesh | 0.02–0.5% |
Citrus Applications
| Flavor | Function | Typical Level |
|---|---|---|
| Orange | Sweet orange flesh, juice realism | 0.01–0.1% |
| Mandarin | Juicy segments, natural sweetness | 0.02–0.2% |
| Tangerine | Fruit body and juiciness | 0.02–0.2% |
| Lemon | Softens harsh acidity, adds sweetness | 0.005–0.05% |
| Lime | Rounds acidity and sharpness | 0.002–0.03% |
| Grapefruit | Softens bitterness, adds flesh note | 0.005–0.05% |
Beverage Applications
| Application | Function | Finished Product Level |
|---|---|---|
| Carbonated Soft Drinks | Juice realism, fruit body, persistence | 0.05–3 ppm |
| Juice Drinks | Aroma restoration after processing | 0.1–10 ppm |
| Energy Drinks | Softens aggressive acid systems | 0.1–5 ppm |
| Sports Drinks | Increases perceived juiciness | 0.05–2 ppm |
| Functional Beverages | Improves fruit authenticity | 0.05–5 ppm |
| Flavored Waters | Adds fruit flesh and volume | 0.05–2 ppm |
Dairy Applications
| Application | Function | Finished Product Level |
|---|---|---|
| Yogurt | Fresh fruit preparation note | 0.5–15 ppm |
| Drinkable Yogurt | Juicy fruit character | 0.5–15 ppm |
| Ice Cream | Fruit body and realism | 0.5–20 ppm |
| Milk Drinks | Fresh fruit aroma | 0.1–10 ppm |
| Dairy Desserts | Fruit volume and persistence | 0.5–20 ppm |
Confectionery Applications
| Application | Function | Finished Product Level |
|---|---|---|
| Gummies | Long-lasting fruit release | 1–30 ppm |
| Hard Candy | Heat-stable fruity character | 2–50 ppm |
| Chewing Gum | Sustained fruity release | 5–100 ppm |
| Fruit Chews | Fruit flesh realism | 2–50 ppm |
| Jelly Candy | Juiciness enhancement | 1–30 ppm |
Bakery Applications
| Application | Function | Finished Product Level |
|---|---|---|
| Fruit Fillings | Fresh fruit body | 1–20 ppm |
| Pastries | Fruit authenticity | 1–15 ppm |
| Cakes | Sweet fruit enhancement | 1–10 ppm |
| Cookies | Fruit top-note reinforcement | 1–10 ppm |
Alcoholic Beverage Applications
| Application | Function | Finished Product Level |
|---|---|---|
| Hard Seltzer | Fruit flesh realism | 0.1–5 ppm |
| Fruit Wine | Natural fruit enhancement | 0.1–10 ppm |
| Cider | Orchard fruit authenticity | 0.1–10 ppm |
| RTD Cocktails | Juicy fruit volume | 0.1–10 ppm |
| Low-Alcohol Beverages | Fruit body builder | 0.1–5 ppm |
Savory Applications
| Application | Function | Finished Product Level |
|---|---|---|
| BBQ Sauce | Fruit lift and sweetness | 0.05–2 ppm |
| Teriyaki Sauce | Fruit rounding effect | 0.05–2 ppm |
| Fruit Chutney | Fresh fruit enhancement | 0.05–2 ppm |
| Sweet Marinades | Tropical fruit character | 0.05–2 ppm |
| Asian Sauces | Juicy fruit top note | 0.05–2 ppm |
Major Synergists
Hexyl acetate (apple skin), ethyl 2-methylbutyrate (fresh apple), ethyl butyrate (juiciness), allyl hexanoate (pineapple), ethyl hexanoate (tropical fruit), cis-3-hexenol (fresh green fruit), trans-2-hexenal (fresh-cut fruit), furaneol (sweet fruit flesh), gamma-decalactone (peach body), gamma-undecalactone (stone fruit), ethyl decadienoate (pear).
Practical Flavorist Usage Guide
| Problem | Hexyl Hexanoate Contribution |
|---|---|
| Flavor is too thin | Adds body and volume |
| Flavor is too artificial | Adds natural fruit realism |
| Flavor lacks juiciness | Builds juicy flesh character |
| Flavor is too sharp | Softens profile and rounds acids |
| Flavor lacks persistence | Extends fruity perception |
| Flavor lacks fruit skin note | Provides orchard-fruit realism |
| Tropical flavor feels hollow | Adds sweet fruit center |
| Berry flavor lacks flesh | Builds ripe fruit body |
Commercial Rule of Thumb
For most fruit flavors, 0.05–0.50% in the flavor concentrate is often sufficient to noticeably improve fruit flesh, juiciness, sweetness perception, realism, and overall natural character without creating excessive ester candy notes.
More details
1. Fruit Flavors (General & Specific)
This is the dominant category for hexyl hexanoate.
Apple (All types)
- Function: Imparts characteristic green apple skin, juicy pulp, and waxy peel notes. Essential for a "fresh-picked" realism. Blends well with ethyl-2-methylbutyrate and hexyl acetate.
- Typical Dosage: 1.0 - 15.0 ppm in final product
Pear (especially Williams/Bartlett)
- Function: Provides the distinctive fresh, green, juicy body and peel character. Synergistic with (E,Z)-2,4-decadienoate esters.
- Typical Dosage: 2.0 - 20.0 ppm in final product
Peach & Apricot
- Function: Adds green, fruity under-notes and a "fuzzy" skin sensation, enhancing overall complexity and preventing a flat, candy-like profile. Acts as a blender for lactones.
- Typical Dosage: 0.5 - 8.0 ppm in final product
Tropical Fruits (General)
- Function: Contributes to a generic "tropical" green back-note, adding freshness and lift.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Banana
- Function: Reinforces the fresh, green, slightly woody aspect of unripe or just-ripe bananas, complementing the dominant isoamyl acetate.
- Typical Dosage: 1.0 - 10.0 ppm in final product
Grape (Concord/Vitis labrusca)
- Function: Enhances the musty, foxy, and winey character with a fresh green, slightly waxy nuance.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Strawberry (Wild/Fraise des bois)
- Function: Imparts a green, sappy, stem-like character and a waxy seed note, adding depth to wild strawberry profiles.
- Typical Dosage: 0.2 - 5.0 ppm in final product
Pineapple
- Function: Adds a green, fruity complexity and a slightly woody, stemmy nuance.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Kiwi
- Function: Provides the fresh, green, waxy skin character and juicy flesh note.
- Typical Dosage: 1.0 - 10.0 ppm in final product
Lychee & Rambutan
- Function: Contributes a fresh, green, waxy, and slightly woody dimension, supporting the floral-rosy notes.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Plum & Greengage
- Function: Enhances the green skin, woody stone, and fresh juicy character, particularly in green plum varieties.
- Typical Dosage: 1.0 - 8.0 ppm in final product
Quince & Medlar
- Function: Adds waxy, green, and firm-flesh notes essential for authenticity in these less common flavors.
- Typical Dosage: 2.0 - 15.0 ppm in final product
Blueberry & Bilberry
- Function: Provides a subtle green, waxy skin nuance, adding complexity and a fresh-picked feel.
- Typical Dosage: 0.2 - 3.0 ppm in final product
Mango
- Function: Imparts a green, terpenic-fruity, and slightly woody peel note, balancing the creamy-sweet lactonic body.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Cherry (Sweet & Sour)
- Function: Adds a waxy skin, green stem, and fruity depth, especially useful in sour cherry profiles.
- Typical Dosage: 0.5 - 5.0 ppm in final product
Blackcurrant & Redcurrant
- Function: Contributes a green, catty (alongside thiols), and waxy bush note, enhancing the fresh, vegetal-fruity complexity.
- Typical Dosage: 0.2 - 4.0 ppm in final product
2. Beverages (Non-Alcoholic & Alcoholic)
Non-Alcoholic (RTD) Drinks
- Function: Provides a fresh, green, cloudy/juicy fruit character. Acts as a crucial flavor modifier in juice drinks (5-10% juice) to boost a "juicy" mouthfeel. Stable in typical beverage matrices.
- Typical Dosage: 0.5 - 8.0 ppm
Alcoholic Beverages (General)
- Function: Imparts fruity, winey, and fermented notes. Enhances the perception of body and smooths harsh ethanol notes. Acts as a fermentation congener.
- Typical Dosage: 0.5 - 20.0 ppm
Wine (Especially White, Rosé, & Sparkling)
- Function: Naturally occurring. Enhances varietal character in fruity wines (e.g., Riesling, Gewürztraminer, Albariño). Adds green apple, pear, and waxy notes. Used in wine coolers.
- Typical Dosage: 0.1 - 5.0 ppm
Beer (Specialty, Lambic, Fruit Beers)
- Function: Adds a green apple/pear top note typical of certain young beers or as a flavoring agent in fruit-forward ales and radlers.
- Typical Dosage: 0.2 - 4.0 ppm
Cider (Apple & Pear)
- Function: Crucial for building a fresh-pressed, "orchard" character. Intensifies the varietal fruit notes that can be lost during fermentation.
- Typical Dosage: 1.0 - 15.0 ppm
Spirits (Gin, Vodka, Flavored Liqueurs)
- Function: In fruit-flavored spirits, it provides naturalness and body. In gin, it can add a subtle fruity-waxy note to a contemporary style.
- Typical Dosage: 0.5 - 10.0 ppm
3. Dairy & Plant-Based Alternatives
Yogurt & Fermented Milk
- Function: Adds fresh, green fruit identity. Crucial in fruit preparations (10-30% fruit) for "green" apple, pear, or kiwi yogurts. Masks the sour, fermented base notes and adds juiciness.
- Typical Dosage: 1.0 - 15.0 ppm (in fruit prep, up to 50 ppm)
Ice Cream & Sorbet
- Function: Provides a fresh, cooling, green fruit perception that cuts through fat and sweetness. Effective in water ices and sorbets for a realistic, non-candy profile.
- Typical Dosage: 1.0 - 12.0 ppm
Cheese (Processed, Fresh, Flavored)
- Function: In fruit-flavored cream cheese or quark, it delivers the characteristic fruity note. Can also add a subtle fruity-waxy nuance to certain washed-rind cheese flavorings.
- Typical Dosage: 0.5 - 5.0 ppm
Plant-Based Milks & Desserts (Oat, Soy, etc.)
- Function: A powerful masking agent for beany, green-grassy off-notes typical of plant bases. Simultaneously imparts a positive fruity character, making it invaluable for fruit-flavored oat-based products.
- Typical Dosage: 0.5 - 8.0 ppm (can be higher for masking)
4. Confectionery & Bakery
Hard & Soft Candies
- Function: Provides a quick burst of fresh, green apple or pear on impact. Volatility must be compensated for in high-temperature processes. Often used with fixatives.
- Typical Dosage: 2.0 - 25.0 ppm (higher dosage due to flash-off)
Chewing Gum
- Function: Acts as a plasticizing flavor ester. Provides a long-lasting, fresh, green, and waxy mouthfeel. Its moderate tenacity ensures flavor duration during chewing.
- Typical Dosage: 50 - 500 ppm (in the gum base/dusting mix)
Chewy Sweets (Jellies, Gummies)
- Function: Imparts a fresh, juicy character that can be perceived as "wet" in a solid matrix, enhancing the consumer's perception of fruit juice content.
- Typical Dosage: 2.0 - 20.0 ppm
Baked Goods (Fillings, Jam, Biscuits)
- Function: In cold applications like fruit fillings and jams, it's highly effective. In baked matrices (e.g., biscuits), it's used in encapsulated form or in the filling post-bake to provide a fresh fruit top note, which is otherwise lost.
- Typical Dosage: 5.0 - 50.0 ppm (in jam/filling)
Chocolate & Compound Coatings
- Function: Used in fruit-flavored fillings (e.g., pear or apple truffle) to cut through the fat and provide a distinctly recognizable green-fruity character.
- Typical Dosage: 1.0 - 10.0 ppm (in the center)
5. Savory & Culinary Applications
Sauces & Dressings
- Function: In fruit-based sauces (apple sauce, chutney) or vinaigrettes, it restores the fresh, green, and waxy notes of the raw fruit that are diminished by cooking or acidity.
- Typical Dosage: 0.2 - 5.0 ppm
Snack Seasonings
- Function: Used in "green" fruit dustings for savory snacks (e.g., apple wood-smoked or pear and blue cheese flavor profiles) to provide an authentic, non-sweet fruit signature.
- Typical Dosage: 0.5 - 10.0 ppm (on finished snack)
6. Oral Care & Pharmaceutical
Toothpaste & Mouthwash
- Function: One of the most common pear/green apple flavoring agents. It provides a fresh, long-lasting fruity character that effectively masks the base notes of surfactants (SLS), humectants, and active ingredients (fluorides, CPC). Chemically stable in these high-pH environments.
- Typical Dosage: 5.0 - 50.0 ppm
Pharmaceuticals (Syrups, Chewable Tablets)
- Function: Excellent masking agent for bitter, chalky active ingredients. The green-fruity note provides a pleasant and familiar taste that improves pediatric compliance.
- Typical Dosage: 10 - 100 ppm (in syrup) / 5 - 50 ppm (in tablet)
Key Functional Summary Across All Applications:
- Primary Organoleptic Driver: Fresh, green, unripe fruit (apple/pear), waxy skin, herbaceous undertone.
- Blending/Modifying Agent: Smoothens harsh, sharp, or chemical top notes (like ethyl acetoacetate or hexyl acetate) and bridges to heavy lactonic base notes. Creates a "juicy" mouthfeel.
- Masking Agent: Covers bitter (caffeine, pharmaceuticals), beany/grassy (plant proteins), sour (fermented dairy), and soapy (surfactant) off-notes.
- Stability: Generally stable in most applications but can undergo transesterification in high-alcohol, high-acid media over long-term storage. Its high boiling point makes it moderately tenacious, but top-note flash-off is a consideration in hard candy manufacturing.
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