Classification
Product TypeIngredient
Product FormPowder
Industry PositionFood Additive (Antioxidant)
Market
Propyl gallate (INS 310; E 310) is a globally traded synthetic antioxidant used to slow oxidation (rancidity) in fat- and oil-containing foods, with its use governed primarily by food-additive regulations and maximum-use provisions rather than agricultural seasonality. Codex GSFA lists propyl gallate as an antioxidant with specified maximum levels across multiple food categories, supporting international alignment for use conditions. In the European Union it is authorised as a food additive and has been safety re-evaluated by EFSA, while in the United States it is affirmed for direct addition to food and subject to good manufacturing practice limits tied to fat/oil content. Market dynamics are therefore driven by regulatory acceptance, formulation performance in lipid systems, and periodic safety re-evaluations that can shift permitted uses, limits, and buyer preferences toward alternative antioxidants.
Specification
Physical Attributes- Fine white to creamy-white crystalline powder (food additive / chemical form)
- Molecular formula C10H12O5 (n-propyl ester of 3,4,5-trihydroxybenzoic acid)
Compositional Metrics- Identified as propyl 3,4,5-trihydroxybenzoate (propyl gallate); CAS 121-79-9
- Food-use specifications referenced to Food Chemicals Codex in U.S. regulation
- International numbering: INS 310 (Codex/WHO JECFA) and E 310 (EU additive identifier)
Grades- Food-grade: must meet applicable additive specifications (e.g., Food Chemicals Codex; EU additive specifications; JECFA specifications)
ProcessingUsed as an antioxidant in fat/oil systems; compliance commonly managed via maximum permitted levels and total-antioxidant limits tied to fat/oil content (jurisdiction-dependent)
Supply Chain
Value Chain- Gallic acid + propyl alcohol sourcing -> esterification -> purification/removal of excess alcohol (e.g., distillation) -> food-grade quality control to applicable specifications -> distribution to food manufacturers and premix/blend formulators
Demand Drivers- Need to protect fat- and oil-containing foods from oxidative deterioration (shelf-life/quality preservation)
- Regulatory authorisations and maximum-use provisions in major markets (Codex GSFA provisions; EU and U.S. food-additive frameworks)
- Reformulation and buyer preferences influenced by safety re-evaluations and labeling/consumer perception of synthetic antioxidants
Risks
Regulatory Compliance HighPropyl gallate’s market access is highly sensitive to regulatory conditions (authorised uses and maximum permitted levels) and periodic safety re-evaluations; changes in acceptable daily intake (ADI), exposure conclusions, or permitted-use lists can trigger rapid reformulation, delisting by retailers, or non-compliance risk (including recalls) if specifications/limits are not met across jurisdictions.Maintain jurisdiction-by-jurisdiction compliance dossiers (Codex/EU/U.S.), verify additive identity/specs via qualified suppliers, and implement formulation controls to ensure use-level limits are met (including total-antioxidant constraints where applicable).
Food Safety MediumExposure assessments and ADI derivations differ across authoritative bodies (e.g., EFSA re-evaluation and WHO/FAO JECFA evaluations), creating potential compliance and perception risk if buyers apply the most conservative benchmarks or if new data prompt revised conclusions.Track updates from EFSA and WHO/FAO JECFA and align customer documentation to the most current opinions, including exposure assumptions and any category-specific restrictions.
Market Acceptance MediumAs a synthetic antioxidant (E-numbered additive), propyl gallate can face negative consumer perception and clean-label pressures, which may reduce usage even when legally permitted and technically effective.Develop validated alternative antioxidant systems (e.g., tocopherols/rosemary extracts where feasible) and provide performance and stability data to support customer reformulation choices.
Sustainability- Chemical manufacturing footprint (energy/solvent use and waste management) and the need for robust impurity/contaminant control under food-additive specifications
Labor & Social- Worker health and safety risks in chemical manufacturing and handling (process chemicals, dust exposure controls, and occupational safety management)
FAQ
What is propyl gallate used for in food?Propyl gallate is used as an antioxidant to help protect foods—especially those containing fats and oils—from oxidative deterioration (such as rancidity). This function is recognized in Codex (INS 310) and in U.S. regulation as an antioxidant used in food.
Is propyl gallate naturally occurring or manufactured?U.S. regulation describes propyl gallate as commercially prepared by esterifying gallic acid with propyl alcohol (followed by removal of excess alcohol), and notes that natural occurrence has not been reported.
What are the main international identifiers for propyl gallate?Propyl gallate is identified as INS 310 in the Codex/WHO system and as E 310 in the European Union; it is also commonly referenced by CAS number 121-79-9.
How do use limits typically work for propyl gallate?Limits are set through food-additive rules and category-specific maximum levels. For example, U.S. regulation ties good manufacturing practice to a maximum total antioxidant content of 0.02% of the food’s fat or oil content, and Codex GSFA lists maximum levels by food category for propyl gallate (INS 310).