Xi'an Huilin Bio-Tech Co., Ltd. is one of the leading manufacturers and suppliers of pregelatinized starch in China. With abundant experience, we are committed to providing high quality natural products with competitive price. Please feel free to wholesale bulk pure pregelatinized starch for sale here from our factory.
What "Pregelatinized" Means on a Specification
Pregelatinized starch (CAS 9005-25-8) is native starch whose granule structure has been opened by heat and moisture, then dried fast enough that the molecules cannot re-order into their original crystalline form. The result disperses in cold water; ordinary starch needs cooking first.
That is a physical change, and it has a consequence buyers run into early: the word describes a treatment, not a fixed set of numbers. Two suppliers can both ship "pregelatinized starch" and deliver materials that behave differently in the same mixer, because three variables sit underneath the name - the source starch, how completely it was gelatinized, and the particle size after milling.
A specification that names none of the three has not described the product. This page names all three, and states where the limits come from.
Release Data
| Item | Specification | Method |
| Starch source | Corn, cassava, potato or wheat - declared per lot | Declared, with iodine staining on request |
| Degree of pregelatinization | Fully or partially pregelatinized - selected at order | Cold-water solubility and swelling behaviour |
| Appearance | White to off-white powder | Visual |
| Odour | No foreign odour | Sensory |
| Moisture | ≤ 12.0 % | GB 5009.3, oven drying |
| Ash | ≤ 0.5 % | Gravimetric, 550 °C |
| Fineness | ≥ 95 % passes 100 mesh; mesh selected at order | Sieve test |
| Cold-water solubility | ≥ 95 % fully pregelatinized; 40 – 70 % partially | Dispersion and centrifugation |
| pH of slurry, 1 % | 4.5 – 7.0 | Potentiometric |
| Hydrogen cyanide, cassava lots only | ≤ 10 mg/kg | GB 5009.35 |
| Moulds and yeasts | ≤ 1 000 CFU/g | GB 4789.15 |
| Total plate count / coliforms | Reported per batch on request | Plate count |
| Conclusion | Conforms to the agreed specification when tested by the stated methods | / |
Three of these limits come from the national food safety standard for edible starch, which sets moisture for pregelatinized starch at 12.0 %, caps moulds and yeasts at 1 000 CFU/g, and holds cassava material to 10 mg/kg hydrogen cyanide. The same standard removed aerobic plate count and coliforms from its own list of indicators, so a buyer who still requires them should say so at enquiry - we report them per batch rather than pretend the national standard sets them.
The remaining rows are working limits rather than statutory ones: ash, fineness, pH and solubility are supplied to what this grade normally delivers. They are the numbers to challenge at quotation, and they are the ones that differ most between suppliers.
The Two Grades Buyers Confuse
Under one name there are two products, and the difference shows up at the bench rather than on the label.
Fully pregelatinized. The granule structure is largely gone. The powder disperses in cold water to a smooth paste and is used where instant viscosity is the point - cold-prepared sauces, instant mixes, binders in industrial systems.
Partially pregelatinized. Part of the granule survives. The powder swells but does not fully dissolve cold, which gives it compressibility and flow - the reason this variant is the one specified for tablet and capsule work.
Buying one when the formula was written for the other produces a batch that either thickens too fast or will not compress. We ask which one is intended before quoting, because the name does not tell us.
Source Starch Changes the Behaviour
Corn, cassava, potato and wheat starches are not interchangeable bases. They differ in granule size, in the amylose-to-amylopectin ratio, and in the trace protein and lipid they carry, so the same pregelatinization treatment yields different viscosity, different clarity, and different gel texture.
For a buyer the practical questions are three: which source the specification names, whether that source can be held constant across shipments, and what happens if it cannot. Cassava and potato sources in particular move with harvest and with regional supply, and a supplier who will not name the source is usually a supplier who cannot guarantee it next quarter.
We declare the source on every certificate. Where a customer needs the source fixed for a validated formula, we say at quotation whether that is supportable rather than after the first shipment.
Regulatory and Grade Position
Food use. Pregelatinized starch is a physically modified starch, not a chemical derivative and not a food additive. It carries no E number and no INS number; it is declared as starch on an ingredient list. In China the product falls under starch and starch products manufacture and requires that production licence; there is a national standard for the product category, and we test against its methods rather than quoting its limits as our own.
Pharmaceutical use is a different route. A pharmaceutical excipient is qualified by the buyer, against their own audit and their own filing, and in China it additionally requires excipient registration tied to a marketed drug. We do not supply this page's grade as a registered pharmaceutical excipient and the page should not be read as offering one. Where a customer needs an excipient for a regulated drug product, the material has to come with a manufacturer that can be audited and a file that can be referenced - that is a different supply conversation, not a different SKU.
Other markets. Labelling and permitted use differ; the determination is the buyer's.
Where It Is Used
Carrier in powder blends. Holds a small-dose active evenly through a bulk powder and keeps the blend free-flowing.
Instant thickener. Viscosity in cold-prepared systems where a cook step is not available.
Filler and binder in capsule and tablet blends. As a food-grade excipient, in products that are not regulated medicines.
Binder in agglomerated and granulated products. Where compressibility matters more than cold-water clarity.
Questions Buyers Ask
Q: Is partially pregelatinized starch the same product as fully pregelatinized?
A: No. Same name, different material. Partially pregelatinized retains part of the granule and is specified for compression; the fully pregelatinized grade disperses cold and is used for instant viscosity. They are not interchangeable in a formula.
Q: Which starch source should I specify?
A: Whichever your validated formula names. Corn is the most widely available and the most consistent; cassava and potato give different viscosity and clarity but move with harvest. The source is declared per lot on the certificate.
Q: Why is there no single viscosity figure on this page?
A: Because viscosity depends on the concentration, the temperature and the source starch, and a figure quoted without those conditions cannot be reproduced. We report cold-water solubility per batch and will quote viscosity at stated conditions on request.
Q: Is this material a food additive?
A: No. It is a physically modified starch, declared as starch. It has no E number and no INS number.
Q: Can you supply it as a pharmaceutical excipient?
A: Not from this page's grade. A regulated drug product needs a registered excipient route with a manufacturer that can be audited and a referenceable file. We will say plainly whether that is available for a given enquiry rather than let the question sit.
Q: What arrives with a batch?
A: Certificate of analysis covering the items in the table above, the agreed specification sheet, and the safety data sheet. Additional statements for labelling are prepared on request.
Supplier
Pregelatinized starch is supplied by Xi'an Huilin Bio-Tech Co., Ltd. in food grade, with the starch source declared per lot and the numerical limits agreed at order rather than copied from a template.
Lead time and freight terms are quoted with the order; FOB, CIF and DDP are workable by destination.
This page describes a raw material for manufacturing use. It is not a finished consumer product, and nothing here is a statement about the effect of any product on any person. Regulatory status differs by market and is the buyer's determination; we supply the documentation a filing requires.
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