Chinese Yam (Shan Yao) Extract Powder for Beverages and Powder Blends: Formulation Checks
Formulator’s summary: Chinese yam (Shan Yao; Dioscorea polystachya) standardized extract powder is a fine off-white powder from tuber, with an extraction ratio of 100:1. It is water-soluble and is suited to beverages, chocolates, desserts and dry or wet food and supplement systems. The powder can clump with heat or moisture, so blend it under dry conditions and check dispersion in the target system.
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Quick facts for formulators
- Physical form: fine off-white powder, characteristic odour
- Botanical part: tuber of Dioscorea polystachya
- Extraction ratio: 100:1, green-biotechnology extraction, spray-dried
- Solubility: water-soluble
- pH and moisture: pH 4–6; moisture below 10%
- Dosage entry in the bulk guide: 200–500 mg, or quantum satis
- Storage: 24 months sealed, cool and dry, below 25°C, relative humidity below 65%
- Pack sizes: 1 kg, 5 kg, 20 kg
What does the specification state?
The bulk guide describes the powder as a 100:1 extract of Dioscorea polystachya tuber, produced by green-biotechnology extraction and spray-dried into a fine, free-flowing off-white powder with a characteristic odour. It is water-soluble, with pH 4–6 and moisture below 10%. Each lot is supplied with its own certificate of analysis (COA), and the lot COA is the record to check against the specification.
The extraction ratio describes the tuber-to-extract ratio. It is not an assay figure, and this item’s specification is read from the extraction method, appearance, solubility, pH, moisture and storage entries above.
How should a formulator plan a powder-blend trial?
Begin with the target blend’s physical properties, the intended addition sequence and the downstream use. Record the extract lot, blend composition, mixing equipment, mixing duration and environmental conditions. Include a control blend without the extract where useful for comparing flow, uniformity and appearance. Set the trial inclusion levels from the product brief and the bench trial; the 200–500 mg dosage entry in the bulk guide is a dosage figure and is not a blend percentage.
Assess blend uniformity, segregation, powder flow and dissolution or dispersion in the final system. Retain the selected trial basis with the batch record.
Solubility and dispersion
The bulk guide describes the powder as water-soluble. For reconstituted products, evaluate wetting, lump formation, visible residue and dispersion under defined conditions. Record the water-to-powder ratio, temperature, mixing method and observation time in the development notebook. For dry blends, check that the extract stays evenly distributed after mixing and handling.
Moisture, heat and storage
The powder can clump with heat or moisture. Store it sealed in a cool, dry place below 25°C at relative humidity below 65%, and keep it away from sunlight. The shelf life is 24 months when sealed under these conditions. Control exposure to ambient humidity and document the handling interval between opening the pack and blending. Set processing temperature and humidity limits from the pilot trial under the actual process conditions.
- Record the extract lot and the current specification revision.
- Set trial inclusion levels for the specific blend from the product brief.
- Document mixing order, equipment and conditions.
- Evaluate uniformity, flow, caking and reconstitution behaviour as relevant to the application.
- Keep the blend’s stability assessment separate from the ingredient’s storage statement.
Food and drink applications
The catalogue describes the ingredient for food, beverage and supplement applications. The bulk guide lists beverages, chocolates, desserts and dry or wet food and supplement systems. An opaque matrix tolerates visible suspension differently from a clear ready-to-drink beverage, so set the target appearance and dispersion criteria before the pilot. The bulk guide’s water-solubility and off-white appearance support initial screening; the pilot determines the processing result.
Supplying Chinese yam extract powder and related ingredients in bulk
The catalogue lists Shan Yao (Chinese Yam) standardized extract powder, the subject of this guide, and three related ingredients, each a distinct product:
- Carrot Standardized Extract Powder, a root colour and flavour powder with a 20:1 extract ratio.
- Jackfruit (Artocarpus heterophyllus) Standardized Extract Powder, a sweet fruit powder for beverage and bakery use.
- Durian (Durio) Standardized Extract Powder, a spray-dried fruit powder for the same dispersion uses.
Bulk supply, a certificate of analysis per lot, supporting documentation and packing options are arranged through the quotation for each item. The bulk buyer guide for this ingredient is the Chinese Yam / Shan Yao bulk buyer guide.
Frequently asked questions
What inclusion level should be used in a powder blend? Set the blend level from the target product brief and a bench trial. The 200–500 mg dosage entry in the bulk guide is a dosage figure, not a blend percentage.
Is Chinese yam extract powder water-soluble? The bulk guide describes it as water-soluble. Confirm the dispersion in the intended blend and reconstitution system with a bench test.
How should processing stability be assessed? Store the powder sealed in a cool, dry place below 25°C at relative humidity below 65%. Evaluate it under the heat and humidity conditions planned for the blend, and set the limits from the pilot trial.
What does the 100:1 figure specify? It is the tuber extraction ratio given in the bulk guide, produced by green-biotechnology extraction and spray-dried. It is not an assay figure.
Request the specification sheet and the lot certificate of analysis for Shan Yao (Chinese Yam) standardized extract powder.
