Introduction to Bile Acids & Bile Salts Powder
Bile acids and bile salts are naturally occurring steroid acids derived from cholesterol in the liver and secreted into bile. Strictly speaking, bile acids are the protonated (non-ionized) forms, while bile salts are their deprotonated, conjugated forms (typically conjugated with glycine or taurine). In practice, the terms are often used interchangeably in physiology and clinical settings.
Bile salts are amphipathic molecules with a hydrophobic end (lipid-soluble) and a hydrophilic end (water-soluble), enabling them to act as biological detergents that emulsify lipids, aid digestion, and facilitate the absorption of fat-soluble vitamins. Conjugation with glycine or taurine significantly lowers the pKa of bile acids, ensuring their aqueous solubility within the enterohepatic circulation.
Bile Acids & Bile Salts Powder is a refined mixture of bile acids (primarily cholic acid, deoxycholic acid, chenodeoxycholic acid, and lithocholic acid) and their conjugated forms (glycocholic acid, taurocholic acid, glycodeoxycholic acid, and taurodeoxycholic acid). It is extracted under controlled conditions from purified fresh bovine or porcine bile, ensuring batch-to-batch consistency and uniformity.
Bile Acids & Bile Salts Powder supplied by Huilin is manufactured under strict quality control standards, complies with USP/EP pharmacopeia specifications where applicable, and is supported by full documentation including COA and batch traceability. We offer private label, OEM, and ODM services with competitive pricing and reliable supply chain support for bulk wholesale customers worldwide.
Certificate of Analysis (COA)
| Parameter | Specification | Typical Result |
|---|---|---|
| Appearance | Yellow to brownish-yellow powder | Complies |
| Total Bile Acid Content | ≥50.0% | 65.2% |
| Identification (TLC/HPLC) | Corresponds to the reference standard | Complies |
| Loss on Drying | ≤8.0% | 5.2% |
| Sulphated Ash | ≤22.0% | 18.5% |
| pH (2% solution in water) | 6.0 – 8.0 | 7.1 |
| Solubility (2% in water) | Clear solution | Complies |
| Heavy Metals | ≤20 ppm | Complies |
| Particle Size | As per customer specifications | D90 ≤180 µm |
| Microbial Limits | Meets pharmacopoeia requirements | Complies |
Note: Batch-specific COA is available upon request.
Process Flow
Bile Acids & Bile Salts Powder is produced from fresh bovine or porcine bile through a controlled extraction and purification process:
- Sourcing – Fresh bile is collected from healthy cattle or pigs from qualified sources
- Filtration – Bile is filtered to remove impurities and particulate matter
- pH Adjustment – Bile is adjusted to a neutral pH
- Extraction – Bile acids and bile salts are extracted under controlled conditions
- Purification – Multiple purification steps isolate the bile acid/salt mixture
- Drying – Low-temperature dehydration or spray drying ensures a uniform product
- Quality Control – Each batch is tested for total bile acid content, loss on drying, pH, solubility, and microbial limits
- Packaging – Powder is packaged under controlled conditions in moisture-proof containers
Bile Acids & Bile Salts Powder benefits
- Multi-component bile acid mixture – Contains a balanced blend of primary and secondary bile acids (cholic acid, deoxycholic acid, chenodeoxycholic acid, lithocholic acid) and their conjugated forms, providing a comprehensive bile acid profile
- Natural biological detergent – Bile salts act as natural surfactants, emulsifying lipids and facilitating the digestion and absorption of fats and fat-soluble vitamins
- Pharmaceutical and excipient applications – Bile acids can work as drug absorption enhancers with the property to act as both drug solubilizing and permeation-modifying agents. They can be utilized as absorption enhancers for oral drug delivery in both conventional dosage forms and polymeric micellar systems
- Microbiological selective agent – Bile salts are used as selective inhibitory agents in bacteriological culture media, enabling the isolation and identification of intestinal bacteria such as E. coli and other enteric pathogens by inhibiting Gram-positive bacteria
- Pharmaceutical-grade quality – Meets USP/EP specifications where applicable, with batch-to-batch consistency and full traceability
- Versatile applications – Suitable for pharmaceutical formulations, microbiological culture media, dietary supplements, research, and cosmetic applications
- Water-soluble formulation – Freely soluble in water and alcohol, facilitating easy incorporation into liquid and solid formulations
What is Bile Acids & Bile Salts Powder used for?
Pharmaceutical Applications:
- Active Pharmaceutical Ingredient (API): Used as an active ingredient in certain pharmaceutical formulations
- Pharmaceutical Excipient: Functions as a drug absorption enhancer, solubilizing agent, and permeation-modifying agent in oral drug delivery systems
- OTC and Nutraceutical Products: Used as an ingredient in over-the-counter and nutraceutical formulations
- Bile Acid Replacement Therapy: Used in conditions requiring bile acid supplementation
Microbiological Applications:
- Selective Culture Media: Bile salts are used as selective agents in bacteriological culture media to inhibit Gram-positive bacteria (such as Streptococci and Staphylococci) while allowing the growth of Gram-negative enteric organisms
- Bile Tolerance Testing: Oxgall powder (a type of bile salt powder) is commonly used to assess the bile tolerance ability of potential probiotic strains at a concentration of 0.3% (wt/vol)
- Microbiology Research: Used in studies investigating bacterial bile salt adaptation and metabolism
Dietary Supplement Applications:
- Digestive Health Supplements: Used in formulations supporting fat digestion and nutrient absorption
- Liver and Gallbladder Support: Used in supplements supporting liver detoxification and gallbladder function
Research Applications:
- Biochemical Research: Used in studies of bile acid metabolism, enterohepatic circulation, and cholesterol homeostasis
- Drug Delivery Research: Used in the development of bile acid-based drug delivery systems
Note: All applications must comply with local regulatory requirements.
Frequently Asked Questions (FAQ)
Q: What is the difference between bile acids and bile salts?
A: Bile acids are the protonated (non-ionized) forms, while bile salts are their deprotonated, conjugated forms (conjugated with glycine or taurine). Bile salts are more water-soluble and act as biological detergents.
Q: What is the total bile acid content of your product?
A: Our Bile Acids & Bile Salts Powder typically contains ≥50% total bile acids (minimum), with typical results ≥65%.
Q: What are the main components of Bile Acids & Bile Salts Powder?
A: It is a mixture of free and conjugated bile acids, primarily cholic acid, deoxycholic acid, chenodeoxycholic acid, lithocholic acid, and their glycine and taurine conjugates (glycocholic acid, taurocholic acid, glycodeoxycholic acid, taurodeoxycholic acid).
Q: Is your product water-soluble?
A: Yes, Bile Acids & Bile Salts Powder is freely soluble in water and alcohol.
Q: What pharmacopoeia standards does your product comply with?
A: Our product meets USP/EP specifications where applicable and is manufactured under strict quality control standards.
Q: What packaging options do you offer?
A: We offer 1 kg foil bags for samples, 5–10 kg bags for intermediate quantities, and 25 kg fiber drums for bulk shipments. Customized packaging and private labeling are available upon request.
Q: How should Bile Acids & Bile Salts Powder be stored?
A: Store in a cool, dry place at 10–30°C, in tightly sealed containers. Protect from moisture. Shelf life is 24–36 months under proper storage conditions.
Q: What documentation do you provide?
A: Each shipment includes a Certificate of Analysis (COA) showing total bile acid content, loss on drying, pH, solubility, and microbial limits. MSDS and additional regulatory documentation are available upon request.
Q: Can Bile Acids & Bile Salts Powder be exported globally?
A: Yes, we export to most regions worldwide with full export documentation and regulatory support.
Q: Is this product suitable for microbiological culture media?
A: Yes, it is widely used as a selective agent in bacteriological culture media to inhibit Gram-positive bacteria and isolate enteric organisms.
Q: What is the difference between bovine-derived and porcine-derived bile salts?
A: Both are effective and widely used. Bovine-derived (ox gall) products are more common in Western markets and are often used in microbiological applications. Porcine-derived products are more common in Asian markets and traditional medicine applications.
Q: What is the CAS number for Bile Acids & Bile Salts Powder?
A: The CAS number is 8008-63-7.
How to contact
Contact our sales team to discuss your requirements for Bile Acids & Bile Salts Powder.
Please get in touch with us at ella.zhang@huilinbio-tech.com.
References
Disclaimer
For manufacturing, pharmaceutical, and research use only. Not for direct human consumption. B2B info – not medical advice. Buyers must comply with regulations and obtain approvals. Specifications may change; verify current docs before ordering.
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