Grapefruit, Extract

Grapefruit extract is derived from the grapefruit plant (Citrus × paradisi), typically obtained from the fruit, peel, seeds, or pulp through extraction processes. The extract contains naturally occurring compounds including flavonoids, limonoids, and other phytochemicals characteristic of citrus fruits. The CAS number 90045-43-5 identifies this specific substance in chemical databases.

While the precise function of grapefruit extract in food formulations is not clearly defined in available regulatory documentation, citrus extracts generally are used in the food industry for various purposes. Grapefruit extract may serve as a flavoring agent, antimicrobial preservative, or source of bioactive compounds in food and beverage products. Some manufacturers use grapefruit seed extract specifically for its potential antimicrobial properties, though such applications vary by jurisdiction and product type.

According to FDA records, there have been zero adverse events reported for grapefruit extract (CAS 90045-43-5), and no FDA recalls are associated with this ingredient. This suggests a benign safety profile in reported food applications. However, the lack of an FDA GRAS (Generally Recognized As Safe) designation indicates that formal safety review through FDA's GRAS process has not been completed for this specific substance.

Grapefruit as a whole food is widely consumed and considered safe by regulatory agencies. However, grapefruit is known to interact with certain medications by inhibiting cytochrome P450 enzymes, which affects drug metabolism. The relevance of these interactions to food-grade extracts used in products depends on concentration levels and intended consumption patterns.

Grapefruit extract does not currently hold FDA GRAS status, meaning it has not undergone formal FDA safety assessment through the voluntary GRAS notification program. Despite this, the ingredient appears in food products, which may be permitted under FDA regulations for substances with a history of safe use or other regulatory pathways.

The regulatory status varies internationally. The European Union maintains its own approval processes for food additives and natural extracts. Manufacturers using grapefruit extract must comply with applicable regulations in their target markets.

Scientific literature documents the chemical composition of grapefruit extracts and their bioactive compounds, but peer-reviewed research specifically addressing grapefruit extract as a food additive at typical use levels remains limited. Most published research focuses on whole grapefruit consumption or concentrated supplement forms rather than food-grade extracts.

The lack of adverse event reports and recalls suggests practical safety in real-world food applications, though this does not substitute for formal toxicological assessment. The gap between traditional food use and regulatory designation highlights the importance of manufacturers conducting appropriate safety documentation for their specific extract formulations and intended uses.