Products Description

Galactooligosaccharides (GOS) is a class of non-digestible functional oligosaccharides synthesized via enzymatic transgalactosylation of lactose. Its molecular structure follows the chain formula Gal-(Gal)n-Glc/Gal with polymerization degree n ranging from 0 to 6, consisting of 2–8 galactose and glucose monomer units.

As an indigestible carbohydrate, GOS cannot be hydrolyzed and absorbed by human gastric and small intestinal digestive enzymes. It directly reaches the large intestine and serves as a selective carbon source for endogenous beneficial microflora such as Bifidobacteria and Lactobacilli. It modulates gut microbiota composition by proliferating probiotics and inhibiting the colonization of harmful bacteria.

Structurally stable under neutral pH and high-temperature processing conditions, GOS features low calorific value (20%-40% sweetness of sucrose) and does not trigger blood glucose spikes. It naturally exists in trace amounts in mammalian milk and is abundant in human breast milk, acting as a key prebiotic substrate for establishing intestinal flora in infants. Daily safe intake range is scientifically defined as 2.5–15.0g for adults.

Technical Specification

Item	Specification	Test Standard
GOS Purity	≥90.0%	Ion Chromatography
Moisture	≤5.0%	GB 5009.3
Ash Content	≤1.0%	GB 5009.4
Glucose + Galactose	≤5.0%	HPLC
Lactose Content	≤3.0%	HPLC
Polymerization Degree (DP3-DP6)	≥70%	Ion Chromatography
Lead (Pb)	≤0.5mg/kg	Atomic Absorption
Arsenic (As)	≤0.3mg/kg	Atomic Absorption
Total Plate Count	≤1000 CFU/g	GB 4789.2
Coliform	≤3 MPN/g	GB 4789.3
Yeast & Mold	≤50 CFU/g	GB 4789.15
Pathogenic Bacteria	Negative	GB 4789 Series

Safety Profile & Certifications

Safety Profile

Acute oral toxicity test shows LD50 >5000mg/kg, no acute toxic reaction in experimental animals.

Subchronic toxicity test confirms NOAEL ≥1000mg/kg/day, no organ toxicity or pathological changes.

Non-allergenic, free of bovine specific gene residues, suitable for infant and sensitive population applications.

No side effects within the recommended daily intake; excessive intake may cause mild transient gastrointestinal flatulence.

Compliant with EU Novel Food regulations and US FDA GRAS safety recognition.

Authoritative Certifications

ISO9001 Quality Management System
FSSC22000 Food Safety System
GMP Production Certification
HALAL / KOSHER Certificate
FDA GRAS Notification
EU Novel Food Approved
GB1903.27-2022 National Food Standard Compliance

Galactooligosaccharides GOS Powder White Functional Prebiotic Raw Material

Application

As a prebiotic, galactooligosaccharides generally have effects and functions such as promoting intestinal health, enhancing immunity, improving digestion and absorption, lowering cholesterol, and preventing constipation.
1. Promote intestinal health
Oligogalactose can be utilized by beneficial bacteria in the gut, increasing their population and thereby improving the balance of gut microbiota.
2. Enhance immunity
By regulating intestinal flora, galactooligosaccharides help enhance the body's immune ability and reduce the risk of infection.
3. Improve digestion and absorption
Oligogalactose can promote the absorption of nutrients in the intestine and enhance digestion efficiency.
4. Lower cholesterol
Research indicates that galactooligosaccharides can help reduce cholesterol levels in the blood, which is beneficial to cardiovascular health.
5. Prevent constipation
Due to its positive impact on intestinal function, galactooligosaccharides can help soften stools and reduce the occurrence of constipation.
Oligogalactose is a natural ingredient beneficial to health. Adding oligogalactose in moderation to daily diet can help improve intestinal health and overall health status. It is recommended to combine it reasonably in the diet to achieve the best results.

Why Choose Us

Standardized GMP Production Base: Covers 25,000 square meters, fully closed dust-free production workshop, equipped with full-process automatic extraction, enzymatic hydrolysis and drying equipment, stable batch quality.
Strict Full-Process Quality Control: Implements ISO9001 and FSSC22000 dual system management, each batch undergoes third-party testing for physical and chemical indicators, heavy metals and microorganisms to meet international export standards.
Customized Support: Provide 57%–90% different purity GOS powder, support OEM/ODM powder packaging and formula customization.
Global Supply Network: Products exported to more than 50 countries in Europe, America, Southeast Asia and South America, with mature customs clearance and logistics service system.
Professional Technical Team: Provide formula application guidance, dosage standard consultation and global regulatory compliance technical support for customers.
Flexible Logistics & Fast Delivery: 1kg/bag small package and 25kg/drum industrial package in stock; sample delivery within 3 days, bulk order lead time 7 days.

Modernized Production Base

Approximately 25,000 square meters, equipped with advanced production and testing equipment, and a GMP-compliant production environment.

Strict Quality Control

Implementation of ISO9001 and FSSC22000 standards throughout the entire process ensures product compliance with international standards.

Global Partnership Network

Products are exported to over 50 countries across Europe, America, South America, and Southeast Asia.

Frequently Asked Questions

What is the purity grade you can supply?

We provide 57%, 70%, 90% three mainstream purity grades, and support customized polymerization degree and content adjustment.

Is your GOS safe for infant formula use?

Yes. Our GOS has passed FDA GRAS and EU Novel Food certification, meets infant food additive standards, and is widely used in infant formula and complementary foods.

What are the storage and shelf life conditions?

Seal and store in cool dry dark place, shelf life is 24 months under normal storage; avoid high temperature and humid environment.

Does GOS have side effects?

No toxic side effects within the recommended daily intake (2.5–15g). Excessive intake may cause slight flatulence, which is a normal adaptive reaction of intestinal flora.

What certifications can you provide?

We can offer ISO9001, FSSC22000, GMP, HALAL, KOSHER, FDA GRAS and third-party test reports.