What is Petrolatum?
Petrolatum (CAS Number 8009-03-8) is a semi-solid mixture of hydrocarbons derived from crude petroleum. Also known as mineral oil or petroleum jelly, petrolatum is colorless to light yellow and odorless. It is composed primarily of saturated hydrocarbons with carbon chains typically ranging from C15 to C50. The substance is insoluble in water and soluble in non-polar solvents, making it useful in various industrial and consumer applications.
Common Uses
Petrolatum serves multiple functional roles in food manufacturing:
**Masticatory Substance**: Petrolatum is widely used as a base ingredient in chewing gum formulations. It provides the necessary texture and elasticity that allows gum to be chewed without immediately dissolving or becoming sticky.
**Lubricant and Release Agent**: In food processing, petrolatum acts as a lubricant on machinery and a release agent to prevent food products from sticking to equipment surfaces. This reduces product loss and maintains equipment efficiency.
**Solvent and Vehicle**: Petrolatum can serve as a carrier or solvent for other food additives and flavorings, helping to distribute them uniformly throughout products.
**Surface-Active Agent**: Its hydrophobic properties allow it to function as a surface-active substance in certain food formulations.
Safety Assessment
Petrolatum has an extensive history of use in food and cosmetic products. The FDA has received zero adverse event reports and zero recall reports associated with petrolatum in food products, according to available data.
Biologically, petrolatum is poorly absorbed through the gastrointestinal tract. When ingested, the vast majority passes through the digestive system essentially unchanged. Studies have demonstrated that petrolatum does not accumulate in body tissues and is excreted largely intact.
The low bioavailability and non-toxic profile of petrolatum in food applications has been established through decades of use. Food-grade petrolatum meets specific purity standards to minimize potential contaminants such as polycyclic aromatic hydrocarbons (PAHs) that may be present in crude petroleum. Manufacturers are required to use highly refined grades meeting strict specifications.
Petrolatum is recognized as Generally Recognized as Safe (GRAS) by the FDA for specific food applications, though it is not formally approved as a food additive under all possible uses. This distinction is important: while petrolatum has not undergone the formal FDA approval process as a direct food additive, it has a long history of safe use in food manufacturing.
Regulatory Status
In the United States, petrolatum is subject to FDA regulations under Title 21 CFR. The regulatory status varies by intended use:
- **Chewing Gum Base**: Petrolatum is permitted as a component of chewing gum bases under FDA guidelines
- **Processing Aid**: As a processing aid or lubricant, petrolatum may be used during food manufacturing with the expectation that it does not remain in appreciable quantities in the final food product
- **Direct Addition**: Direct addition to food products for consumption purposes is more restricted
The European Food Safety Authority (EFSA) has also reviewed mineral oil and petrolatum in food applications, maintaining similar safety conclusions based on minimal absorption and lack of systemic toxicity.
Key Studies
Scientific literature on petrolatum safety includes:
- Absorption and excretion studies demonstrating minimal GI tract penetration and rapid fecal excretion
- Toxicological evaluations showing no evidence of carcinogenicity at food-relevant exposure levels
- Long-term safety data from decades of use in chewing gum and food processing
- Purity and contaminant specification studies establishing quality standards for food-grade petrolatum
Regulatory agencies worldwide have maintained that food-grade petrolatum, when used according to specifications and intended purposes, does not present a safety concern at exposure levels from food consumption.