Bitter Orange Peel Extract Powder

Bitter orange peel, the thick, aromatic rind of the sour orange Citrus aurantium used in marmalade, bitters and Chinese herbal practice, is the only plant material behind this extract. The peel is extracted in water, concentrated and dried to a yellow-orange powder. Flesh, flowers and leaves are not part of the material.

This bitter orange peel extract is a 10:1 ratio extract with no marker assay and no flavonoid or synephrine figure. The powder is milled to 80 mesh and disperses in water. A sweet orange peel extract and a milled peel powder of the same kind of rind are listed as separate products.

Citrus aurantium Peel Source & Identity

The botanical entity is Citrus × aurantium L., the sour or Seville orange, a thorny evergreen tree of the rue family, Rutaceae, grown around the Mediterranean and in Asia for its fruit, blossom and leaves. The part used here is the peel of the fruit. The flesh, the blossoms and the leaves are separate raw materials and are not part of this bitter orange peel extract.

Sweet orange, Citrus sinensis, is a different taxon with a milder, sweeter peel, and the two are often confused on ingredient lists. Chinese texts also use the whole immature fruit of bitter orange, called zhishi, and a differently prepared peel, called chenpi or zhiqiao, so the part and the ripeness should be stated on a specification.

Flavanone glycosides such as naringin and neohesperidin, a protoalkaloid called synephrine, pectin and the volatile peel oil are the constituent families of the rind.

Bitter Orange Peel Extract vs Related Forms

FormWhat It IsChoose It When
10:1 Bitter Orange Peel ExtractWater extract of the bitter orange rind, ratio-definedA peel extract profile without a marker figure is needed
Bitter Orange Extract Powder10:1 extract of the whole fruit of the same speciesThe fruit, not the peel, is named
Orange Peel Extract Powder10:1 extract of the sweet orange peelA sweet orange source is wanted
Bitter Orange Flower Extract Powder10:1 water extract of the bitter orange flowerThe flower, not the peel, is the requirement

It is not a flavonoid or synephrine assay. The 10:1 ratio measures peel going into the extract, and the volatile peel oil is largely lost when the extract is made with water and dried.

The rows differ in species and part. A peel extract and a whole-fruit extract share a tree, while a bitter orange peel and a sweet orange peel share a part, and the name on the specification decides which is the correct match.

Typical Specifications

Specification ItemProduct Information
Latin NameCitrus aurantium
Plant PartFruit & Berry
ProcessingWater Extraction
Common NameBitter Orange Peel, Sour Orange Peel, Seville Orange Peel
Ingredient TypeRatio Extract
Extract Ratio10:1
AppearanceYellow-Orange powder
Solubility / DispersibilityWater Dispersible
Quality Parameters
Moisture (LOD)≤5.0%
Total Ash≤5.0%
Particle Size80 mesh
Heavy MetalsLead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
MicrobiologyTPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life24 months in unopened original packaging, cool and dry storage

Application Areas

Capsules for a Peel Extract

Bitter orange peel extract fills hard capsules after a flow check at 80 mesh. The pectin in the rind makes the powder take up moisture, so fill in a controlled-humidity room and keep the hopper covered. Check the fill weight of early capsules, and add a glidant if the powder arches.

Tablets with Moisture Barrier

Pectin-bearing peel extracts soften as they absorb water. Build strength with a dry binder, add the lubricant last and finish with a barrier film coat, then recheck hardness after a week in the finished pack.

Citrus-Bitter Drink Sticks

Bitter orange peel extract disperses in water to a yellow-orange, lightly hazy liquid, and the bitter citrus character fits tonic, tea and soda-style drinks. Sweetener balance matters because the peel is bitter, so test taste at the planned dose before fixing the stick fill weight.

Carrier-Blended Sachets

Sachets carry bitter orange peel powder in a flavoured carrier. Sieve the extract into the carrier before filling, and run a dose-uniformity check at the start, middle and end of the filling run, since pectin-bearing powders form soft lumps when poured.

Gummy and Bar Premixes

In gummies, blend the extract into the dry sugar portion before cooking, and trial the texture after a week because pectin and acid influence gel set. In bars, a ginger, cocoa or honey base balances the bitter note.

Formulation Notes

Bitter orange peel extract is a yellow-orange powder with a mild citrus smell and a clearly bitter taste. In water it forms an orange-tan dispersion with a light haze, and the pectin fraction adds a little body. Most of the peel oil is lost in water extraction, so a finished drink needs a citrus flavour for aroma.

Bitterness is the main sensory variable, so taste work belongs at the finished dose and in the real base. Let the liquid rest for several minutes before judging haze and thickness.

Feed the powder into a vortex or wet it with a little liquid first. For dry mixes, sieve it with part of the carrier before blending. Reseal opened drums with the air pressed out and store them cool and dry, away from steam.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply ItemGeneral Information
SampleAvailable upon request for formulation, testing, and supplier evaluation
Order Quantities100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead TimeTypically 5–7 days after sample confirmation
Production Lead TimeTypically 15–30 days after order and specification confirmation
PackagingSuitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
StorageStore in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
DocumentationCOA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.

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