What is Gum Myrrh?
Gum myrrh (CAS Number 9000-45-7) is a natural oleogum resin extracted from trees of the Commiphora genus, primarily Commiphora myrrha. This substance has been harvested and used for thousands of years, with historical applications dating back to ancient Egypt, where it was valued for both culinary and medicinal purposes. The resin is obtained through natural exudation from tree bark or by making incisions in the trunk, allowing the aromatic resin to flow and harden into droplets or irregular masses.
The chemical composition of gum myrrh is complex, containing volatile oils (2-8%), resins (23-40%), and gum polysaccharides. The volatile oil fraction contains primarily sesquiterpenes and other aromatic compounds that contribute to its characteristic flavor profile and aroma.
Common Uses
In the food industry, gum myrrh functions primarily as a flavoring agent and flavoring adjuvant. It is used in small quantities in various food applications including:
- Alcoholic beverages, particularly spirits and liqueurs
- Non-alcoholic beverages and soft drinks
- Confectionery and chocolate products
- Baked goods and grain-based products
- Seasoning blends and spice formulations
The bitter, warm, and slightly astringent taste profile makes it particularly useful in formulations seeking to enhance complexity or add traditional warm spice notes without using whole spices. The typical usage levels are quite low, generally in the range of parts per million (ppm) in finished food products.
Safety Assessment
Gum myrrh has a long history of use in food and traditional medicine contexts. According to available FDA data, there have been zero reported adverse events and zero recalls associated with this additive, suggesting a good safety record in commercial food applications at typical use levels.
The additive is not listed on the FDA's Generally Recognized as Safe (GRAS) list, meaning it has not undergone the formal GRAS notification process. However, this classification does not necessarily indicate safety concerns; rather, it reflects that the ingredient may not have been formally submitted for GRAS review or the review process is ongoing.
Toxicological studies on myrrh extracts in animal models have generally shown low acute toxicity. The European Food Safety Authority (EFSA) has evaluated myrrh-containing preparations, and essential oils derived from Commiphora species are recognized in various pharmacopeias. At the low levels used for flavoring purposes, exposure is minimal and represents a small fraction of typical consumption patterns.
Individuals with known allergies or sensitivities to plants in the Burseraceae family should exercise caution, though allergic reactions to gum myrrh at food-use levels are rare.
Regulatory Status
The regulatory status of gum myrrh varies internationally. In the European Union, myrrh oleogum resin is listed in the register of flavoring substances and is permitted for use in food. In the United States, while not GRAS-listed, gum myrrh may be used under the FDA's flavor ingredient regulations if it meets specifications for identity and purity.
Many countries recognize myrrh-derived ingredients as food-acceptable flavoring agents, reflecting its long history of safe use. The ingredient remains subject to standard food safety regulations and labeling requirements wherever it is used.
Key Studies
Research on gum myrrh has primarily focused on its traditional medicinal applications rather than food safety per se. However, phytochemical analyses have well-characterized the volatile and non-volatile components. Studies examining the antimicrobial and antioxidant properties of myrrh extracts suggest biological activity that may contribute to preservative effects at higher concentrations, though food-use levels are typically much lower.
The lack of adverse event reports and recalls in the FDA database, combined with centuries of traditional use and the low exposure levels in modern food applications, indicates a favorable safety profile for use as a flavoring agent.