juglans nigra shell extract

Juglans nigra shell extract is a natural botanical extract obtained from the shells of the black walnut tree, Juglans nigra L., a member of the Juglandaceae family. It is characterized by its brown coloration and a distinct flavor profile described as roasted, bitter, and earthy. Commonly referred to as black walnut hull extract or Juglans nigra hull extract, this extract is utilized in both cosmetic and flavor industries. It acts as an astringent and emollient in topical formulations, and as a flavoring component providing unique sensory notes. The extract is linked to PubChem (SID 135306394) for its chemical reference and is sourced primarily from the shells or hulls of Juglans nigra trees, harvested from regions where these native trees grow. This raw material supports multiple industrial uses due to its organoleptic and functional properties.

Juglans nigra shell extract originates from the black walnut tree, prevalent in North America. Its natural occurrence is confined to the hulls and shells of Juglans nigra fruits. The extract finds applicability as a flavor agent imparting brown roasted bitter earthy notes and as a cosmetic ingredient valued for its astringent and emollient effects in skin conditioning. According to FEMA (US) evaluation, it is approved as a flavoring substance under FEMA number 3111. Beyond flavoring, it is incorporated into cosmetic products for skin conditioning purposes and fragrance. Its multifunctional nature also makes it suitable for use in formulations where mild astringency or emollient effects are desired, capitalizing on the botanical properties inherent to the source material.

The extract typically displays a brown coloration associated with roasted and bitter sensory attributes, reflecting the chemical constituents derived from Juglans nigra shells. These properties suggest the presence of polyphenolic compounds and tannins, known to confer astringency and influence the texture and stability of topical formulations. The bitterness and earthiness characteristic of its flavor profile indicate aromatic complex molecules capable of affecting organoleptic perception. Its physical state as an extract enables incorporation into various matrices such as emulsions and aqueous solutions, though specific solubility and stability parameters depend on extraction methods and formulation context. Controlled concentration levels are essential, especially in flavoring applications, to balance desired sensory impact with formulation compatibility.

FDA Substances Added to Food (formerly EAFUS):	View
Export Tariff Code:	1302.19.0000
Wikipedia:	View

Safety information

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:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
cosmetic and flavor agents
Recommendation for juglans nigra shell extract usage levels up to:
	not for fragrance use.
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 3
Click here to view publication 3
		average usual ppm	average maximum ppm
baked goods:		100.00000	130.00000
beverages(nonalcoholic):		43.00000	90.00000
beverages(alcoholic):		-	-
breakfast cereal:		-	-
cheese:		-	-
chewing gum:		-	-
condiments / relishes:		-	-
confectionery froastings:		-	-
egg products:		-	-
fats / oils:		-	-
fish products:		-	-
frozen dairy:		100.00000	170.00000
fruit ices:		100.00000	170.00000
gelatins / puddings:		-	-
granulated sugar:		-	-
gravies:		-	-
hard candy:		-	130.00000
imitation dairy:		-	-
instant coffee / tea:		-	-
jams / jellies:		-	-
meat products:		-	-
milk products:		-	-
nut products:		-	-
other grains:		-	-
poultry:		-	-
processed fruits:		-	-
processed vegetables:		-	-
reconstituted vegetables:		-	-
seasonings / flavors:		-	-
snack foods:		-	-
soft candy:		-	-
soups:		-	-
sugar substitutes:		-	-
sweet sauces:		-	-

Safety references

Daily Med:search

AIDS Citations:Search

Cancer Citations:Search

Toxicology Citations:Search

EPA ACToR:Toxicology Data

EPA Substance Registry Services (SRS):Registry

National Institute of Allergy and Infectious Diseases:Data

juglans nigra l. shell extract

Chemidplus:0096690561