Overview
Trihydroxycitric acid (HCA) is a naturally occurring organic acid found in certain tropical fruits, particularly Garcinia species. As a citrate analogue, it has attracted scientific and commercial interest for its potential metabolic effects. Chemically, HCA exists in several stereoisomeric forms, with (-)-hydroxycitric acid being the biologically active form most commonly used in supplements. The compound has been studied for its potential effects on lipid metabolism and appetite regulation.
Physical and Chemical Properties
Trihydroxycitric acid is a white crystalline powder with acidic properties similar to citric acid but with additional hydroxyl groups that modify its chemical behavior. Its molecular structure allows it to function as a competitive inhibitor of ATP-citrate lyase, an enzyme involved in fatty acid synthesis. The compound shows good water solubility, which makes it suitable for various formulations. Its stability depends on environmental factors, with decomposition occurring at elevated temperatures. Analytical methods such as HPLC are typically employed to assess purity in commercial samples.
Main Applications
The primary commercial use of trihydroxycitric acid is in the dietary supplement industry, where it is marketed for weight management support. Formulations often combine HCA with other ingredients in capsules, tablets, or powdered mixes. In food applications, HCA serves as an acidulant and flavor enhancer, though this use is less common than its supplement applications. Research continues into potential pharmaceutical applications, particularly in metabolic disorders, though clinical evidence remains limited.
Safety and Storage
Trihydroxycitric acid is generally considered safe when used appropriately. The FDA has granted GRAS (Generally Recognized As Safe) status for certain food applications. Typical dosages in supplements range from 500-1500 mg daily. Proper storage requires protection from moisture and excessive heat. Bulk material should be kept in sealed containers with desiccants. Manufacturers should provide material safety data sheets (MSDS) detailing handling procedures, though no special hazardous material precautions are typically required.
B2B Procurement Guide
When sourcing trihydroxycitric acid, buyers should prioritize suppliers who can provide certificates of analysis (CoA) verifying purity and stereochemical composition. Pharmaceutical-grade material commands premium pricing but offers greater consistency. Consider minimum order quantities and lead times, as production batches may be limited. Quality assurance should include testing for heavy metals and microbial contamination. Some buyers may prefer suppliers offering private label or custom formulation services for value-added products.
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