What is Lime Juice, Dehydrated?
Dehydrated lime juice is produced by removing water from fresh lime juice through drying processes such as spray drying, freeze drying, or drum drying. The resulting product is a concentrated powder or granule that retains the flavor compounds and acidic properties of fresh lime juice. The CAS Number 977091-78-3 identifies this specific substance in chemical registries. As a dehydrated natural ingredient, it contains the same basic chemical compounds found in fresh limes, including citric acid, ascorbic acid, and volatile flavor compounds like limonene and citral.
Common Uses
Dehydrated lime juice is utilized across multiple food and beverage applications. It appears in dry seasoning blends, taco seasonings, spice mixes, and flavor powders where fresh juice would add unwanted moisture. The food industry employs it in beverage formulations, including powdered drink mixes, energy drinks, and flavored water products. It's also found in snack foods, processed meats, condiments, and baked goods where a concentrated lime flavor is desired without the liquid component. In some regions, it's used as a flavor adjuvant in pharmaceutical and nutraceutical products.
Safety Assessment
According to FDA records, dehydrated lime juice has generated zero reported adverse events and zero product recalls, indicating a strong safety profile in commercial use. The ingredient derives from a whole food source (limes), which contributes to its general recognition as safe by consumers and manufacturers. Lime juice itself is a common culinary ingredient with centuries of human consumption history.
While dehydrated lime juice does not hold explicit FDA GRAS (Generally Recognized as Safe) status, this designation is not required for all food additives. Many ingredients, particularly those derived from whole foods and with long histories of use, function in the food supply without formal GRAS affirmation. The absence of adverse event reports and recalls suggests practical safety in the food supply.
Like all citric acid-containing products, dehydrated lime juice maintains the natural acidity of fresh limes. Individuals with citrus sensitivities or specific allergies should be aware of its presence in products. The drying process itself does not introduce known hazardous compounds when conducted under standard food manufacturing protocols.
Regulatory Status
Dehydrated lime juice is permitted for use in food products in the United States under FDA regulations governing flavoring agents. It falls under the category of natural flavoring substances derived from fruits. The ingredient is not listed on the FDA's Color Additives Status List or among prohibited substances. In the European Union, similar dehydrated citrus juice products are permitted under food additive and flavoring regulations, though specific approvals may vary by member state.
The ingredient's regulatory pathway differs from synthetic additives due to its natural origin and established history of safe use. Manufacturers including dehydrated lime juice in products must still comply with general food manufacturing regulations, labeling requirements, and good manufacturing practices (GMP).
Key Studies
Scientific literature on dehydrated lime juice specifically remains limited, as the ingredient is typically evaluated as part of broader lime or citrus research. Studies on fresh lime juice document its composition, including citric acid (approximately 5-6%), vitamin C content, and antimicrobial properties. Research on citrus-derived dehydrated products generally confirms that drying processes preserve the chemical composition with minimal degradation of beneficial compounds.
Toxicological assessments of citrus products have not identified safety concerns at consumption levels typical of flavoring applications. The EFSA (European Food Safety Authority) has evaluated various citrus-derived ingredients without raising specific safety concerns for dehydrated lime juice applications at standard usage levels.