Ziziphus jujuba Polysaccharide Powder

Water-extracted from the fruit of Ziziphus jujuba, this polysaccharide powder holds the pectic fraction of the jujube, separated from the large share of fruit sugars that makes the dried date sweet. It is purified, dried and milled to a fine light yellow powder that dissolves in water.

Polysaccharide content is ≥30% by UV-Vis (phenol–sulfuric, as glucose), moisture and total ash are each ≤5.0%, and the powder is milled to 80 mesh. It is supplied for dietary supplements, functional beverages and functional foods, with the percentage stated beside its method.

Ziziphus jujuba Polysaccharide Identity

Ziziphus jujuba polysaccharide powder is made from the fruit of Ziziphus jujuba Mill., the Chinese jujube or red date. Ziziphus jujuba fruit flesh is the only part used. The seed, sold as suanzaoren and taken from the variety Ziziphus jujuba var. spinosa, is a separate material, and the Indian jujube, Ziziphus mauritiana, is a different species with different fruit.

Ziziphus jujuba fruit is a drupe with a thin skin, a sugary flesh and a hard, pointed stone. When dried, the flesh turns dark red and wrinkles into the familiar red date. Free sugars make up a large share of the dry weight of the fruit, so a crude water extract is mostly sugar, and the polysaccharides are a smaller, more valuable fraction that has to be separated from it.

The polysaccharides of Ziziphus jujuba flesh are described as pectic heteropolysaccharides, with galacturonic acid in the backbone and arabinose, galactose and rhamnose in the side chains, plus smaller neutral glucan and arabinogalactan fractions. Hot-water extraction pulls them out, and ethanol precipitation keeps the large polymers and leaves most of the small sugars in the supernatant.

Related jujube products differ in nature. Jujube Powder is the dehydrated fruit, Freeze-Dried Jujube Powder is a freeze-dried fruit powder, and Jujube Fruit Extract Powder is a ratio extract. None of these is specified by a carbohydrate assay.

Polysaccharide Content & Test Method

Ziziphus jujuba is a sugar-rich fruit, so the content figure, polysaccharides ≥30% by UV-Vis, needs careful reading. The method measures total carbohydrate: hot sulfuric acid hydrolyses polymers and also reacts directly with free sugars, phenol turns everything into a colored product, and absorbance is compared with glucose.

The consequence for jujube is large. Free glucose, fructose and sucrose are abundant in the fruit and react exactly like polymer-bound sugar, so a crude extract can read very high with only a small polymer fraction. Ethanol precipitation removes most small sugars before drying, and the 30% value applies to the finished powder, not to the extract before precipitation.

Uronic acids raise a second point. Galacturonic acid gives a weaker color than neutral sugar in this reaction, so a pectin-rich fraction can look lower than its true carbohydrate mass. Treat the number as a lot-to-lot comparison for one process and not as a mass of pectin.

Gravimetric ethanol-precipitate weights would include protein and tannin, and enzymatic assays are not used for this grade. Compare the value only with other UV-Vis results.

Typical Specifications

Specification ItemProduct Information
Latin NameZiziphus jujuba
Plant PartFruit & Berry
ProcessingWater Extraction & Purification
Common NameJujube (red date)
Ingredient TypePolysaccharide Extract
Polysaccharide TypePectic-type heteropolysaccharides
ContentPolysaccharides ≥30% (UV-Vis, as glucose)
AppearanceLight Yellow powder
Solubility / DispersibilityWater Soluble
Quality Parameters
Moisture≤5.0% (LOD)
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

Ziziphus jujuba Polysaccharide Solution Behavior

Ziziphus jujuba polysaccharide dissolves in water to a pale yellow, clear to slightly hazy solution. The pectic chains hydrate into a moderate viscosity that rises with concentration and is highest at slightly acidic pH, where the carboxyl groups are partly protonated and neighboring chains associate. Warm water shortens dissolution, and sifting into a vortex keeps lumps from forming.

Calcium has the strongest effect. Divalent cations bridge the galacturonic acid groups of pectin and can thicken the solution, cloud it, or in a concentrated system form a soft gel, so mineral-fortified bases need a trial. Juice and fruit-acid bases are compatible and often give a smoother body than neutral ones.

Standard pasteurization leaves the backbone intact, while long boiling at low pH breaks the pectin down and thins the liquid. Heating with amino compounds drives Maillard browning, and residual sugars make the powder more prone to it than a pure glucan would be. The aroma is faint, slightly sweet and date-like.

The powder is hygroscopic and cakes in open air. No viscosity values are stated for this grade.

Storage color is worth watching. A solution of Ziziphus jujuba polysaccharide slowly deepens from pale yellow toward amber with heat, light and iron, a typical change for fruit extracts that retain sugars. Ziziphus jujuba polysaccharide is best kept sealed and cool, and demineralized water avoids iron-driven darkening in clear drinks.

Application Areas

Date-Flavored Drink Powders

Ziziphus jujuba polysaccharide dissolves in water and carries a faint date-like sweetness, so it suits jujube and tea-style drink powders. Acidic fruit bases give a smooth body, and hot holding is kept short because residual sugars encourage browning. The drink is checked for color after a week in the cold.

Sweet Syrup Concentrates

Added to syrup concentrates, the powder contributes soluble solids and gentle viscosity. Acidic syrups keep it stable, while dairy-based versions need a trial for calcium-driven haze, and viscosity is compared with a control after a week at room temperature. Calcium level is fixed before the polysaccharide dose is set.

Capsule and Tablet Cores

The purified powder is less sticky than milled fruit, which is rich in sugar, and fills capsules more cleanly. Tablets need dry granulation or a controlled drying endpoint, because the pectic surface turns tacky on wetting. Fill weight and hardness are checked at both ends of the run.

Fruit Paste and Jelly Binders

In jujube pastes, fruit jellies and spoonable preparations, the pectic polymer integrates with the gelling system and adds body. Texture is governed by calcium and pH, which are fixed before the polysaccharide level is chosen. Fruit pieces stay suspended better as the pectic level rises.

Sachets with Fruit Powders

Dry sachets that pair the polysaccharide with fruit powders disperse evenly and dissolve without lumps. A moisture-barrier laminate prevents caking, and a flow check before filling avoids bridging of the fine powder in the sachet hopper. Dose weight is verified on samples from throughout the run.

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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