Product Overview
Galacto-oligosaccharides (GOS) are produced from lactose through the transglycosylation of β-galactosidase. They are generally a mixture of oligosaccharides consisting of 1-7 galactose groups linked to galactose or glucose molecules. They are a naturally occurring functional oligosaccharide and one of the prebiotics that most closely resembles human milk oligosaccharides. They are not easily digested in the upper digestive tract and can be utilized by certain intestinal microorganisms, making them an important ingredient in prebiotic foods and nutritional formulations.
Qingdao Oriental Tongxiang can supply both GOS powder and GOS liquid.
Key Product Specifications
|
Product Name |
Galacto-oligosaccharides (GOS) |
||
|
CAS No. |
6587-31-1 |
||
|
EC No.: |
218-362-5 |
||
|
Molecular Formula |
C₁₈H₃₂O₁₆ |
||
|
English Synonyms |
4'-Galactosyllactose, 4'-O-β-D-Galactopyranosyllactose |
||
|
Item |
Standard |
||
|
Syrup |
Powder |
||
|
Appearance |
Light yellow viscous liquid without the impurity |
White without the impurity |
White without the impurity |
|
Odor |
Slightly sweet, No unusual odor |
Slightly sweet, No unusual odor |
Slightly sweet, No unusual odor |
|
Moisture, % |
-- |
≤4.0 |
≤4.0 |
|
Solids, % |
73-76 |
-- |
-- |
|
Ph |
3.0-4.0 |
2.8-6.0 |
4.0-6.5 |
|
GOS content (dry substance), % |
≥57 |
≥57 |
≥27 |
|
Lactose Anhydrous (dry substance), % |
≤23 |
≤23 |
≤45 |
|
Dextrose Anhydrous (dry substance), % |
≤22 |
≤22 |
≤30 |
|
Sulfated Ash, % |
≤0.3 |
≤0.3 |
≤0.3 |
|
As, mg/kg |
≤0.5 |
≤0.5 |
≤0.5 |
|
Pb, mg/kg |
≤0.5 |
≤0.5 |
≤0.5 |
|
Total Bacterial, cfu/g |
≤1000 |
≤1000 |
≤1000 |
|
Coliforms, cfu/100g |
Negative |
Negative |
Negative |
|
Pathogen |
Negative |
Negative |
Negative |
The above information is for reference only. Before purchasing, please contact Oriental Tongxiang to obtain applicable product specifications, analysis certificates, testing methods, allergen declarations, GMO declarations, organic certifications, and relevant regulatory documents.
Key Benefits of GOS
1. Prebiotic Formulation Potential
Galacto-oligosaccharides (GOS) can be used to design formulations targeting selective utilization by beneficial gut microbes. Any health claims for the finished product should be evaluated based on relevant evidence regarding specific ingredients, dosage, and target market requirements.
2. Powder and Syrup Dosage Formulation Selection
Compare powder and syrup dosage forms based on your process, delivery system, and finished product dosage form. Request specific grade ingredient data, rather than assuming the GOS concentration is the same for both dosage forms.
3. Processing Flexibility
Published research reports indicate that GOS formulations have good thermal and acid stability. Actual retention still needs to be validated under your formulation's pH, processing temperature, incubation time, and storage conditions.
4. Compatibility with Dairy and Nutritional Supplement Applications
GOS supplied by Oriental Tongxiang is widely used in dairy products and infant nutrition products, and can also be used in functional foods and dietary supplements.
Application Selection Guide
|
Application |
Illustrative Addition Basis |
Role in the Formulation |
Formulation Considerations |
|
Functional Beverages |
For a 250 g serving targeting 2 g active GOS: approximately 1.14% of a 70%-as-supplied ingredient |
Introduces a prebiotic ingredient into a beverage format |
Validate acidity, thermal processing, taste and permitted use |
|
Dairy Products |
For a 150 g serving targeting 2 g active GOS: approximately 1.90% of a 70%-as-supplied ingredient |
Supports prebiotic dairy positioning |
Check interaction with cultures, fermentation and finished-product storage |
|
Powdered Supplements |
Approximately 2.86 g of a 70%-as-supplied ingredient per serving to provide 2 g active GOS |
Enables serving-based GOS delivery |
Verify blend uniformity, moisture protection and the evidence supporting the selected daily intake |
|
Bakery & Nutrition Bars |
For a 50 g serving targeting 2 g active GOS: approximately 5.71% of a 70%-as-supplied ingredient |
Adds GOS to a solid food format |
Validate texture, moisture balance, browning and post-process composition |
|
Gummies & Confectionery |
Calculate from the confirmed GOS concentration and intended serving size |
Incorporates GOS into selected confectionery formats |
Check serving size, residual sugars, texture and market-specific permission |
|
Infant & Young-Child Nutrition |
Product- and market-specific; no generic addition rate recommended |
Established GOS application in selected infant nutrition products |
Requires suitable ingredient documentation and compliance with specific formula requirements |
The above formulas are for reference only. Please adjust them according to the formulas of your end products.
Certifications & Compliance
Oriental Tongxiang International can provide other documents as required by the client's audit, such as Kosher certification, Halal certification, Non -GMO, ISO certification, FSSC certification, etc.
Packaging and Supply
Standard Packaging
GOS Powder is packaged in multi-layer craft paper bag with food grade PE inner bag, net 25kg/bag, 16-18MT per 20 ft container;
GOS Syrup is packaged in net 30-35kg plastic drum, 18-20MT per 20 ft container
(Other packaging types are available on requests).
The main loading port is in Qingdao China, other Chinese ports such as Shanghai, Tianjin, Guangdong can be discussed subject to order terms and logistics availability.
Loading method:
GOS Powder usually put 800kg on pallet, and load 16-18MT with pallet in 20' FCL.Minimum order quantity: MOQ is 25kg,
GOS syrup usually 18-20MT in 20' FCL.
Delivery time: Prompt supply may be available for stock items.
Terms: EXW, FOB, CFR, CIF, or other Incoterms may be discussed according to the shipment requirement.
Storage Conditions: Should be stored in a cool and dry place with airtight container.
Frequently Asked Questions
1,What is the difference between GOS 57 and GOS 70?
In published syrup specifications, these numbers refer to the minimum dry basis GOS content: ≥57% or ≥70%. They do not necessarily represent the GOS concentration in the supplied liquid. Please compare the dry matter, residual sugar, and analytical methods with the grade name.
2, Is GOS powder better than GOS syrup?
Both forms have their advantages and disadvantages; there is no absolute superiority. The choice depends on your production process, the required GOS supply, and the confirmed ingredients.
3, What is the difference between GOS and FOS?
GOS usually refers to galactooligosaccharides derived from lactose, while FOS refers to fructooligosaccharides. Both are prebiotic ingredients, but their carbohydrate structures and compositions differ. When choosing, specific evidence regarding the ingredient, the expected intake, processing requirements, and relevant allergen information should be considered, rather than simply assuming one is better than the other.
4,Can you provide a Certificate of Analysis (COA) and technical specifications?
Oriental Tongxiang can provide a COA.
5,what is your MOQ?
The MOQ is 25kg.
Request a GOS Sample or Bulk Quotation
Please inform us of your target grade, application area, market, and expected order quantity. Oriental Tongxiang supplier will recommend a suitable grade and provide corresponding specifications, sample terms, and a quotation.
Hot Tags: gos(galacto-oligosaccharide), China gos(galacto-oligosaccharide) manufacturers, suppliers, factory
