Overview
Lemon Myrtle (Backhousia citriodora) is an evergreen tree native to subtropical rainforests of Australia. Its leaves contain up to 90% citral, the highest concentration of any plant, giving it a potent lemon aroma. Traditionally used by Indigenous Australians, it now holds commercial significance in global markets for its essential oil and dried leaves. The plant thrives in warm climates and is cultivated for sustainable harvesting. Its oil is extracted via steam distillation, while dried leaves are used whole or ground. The industry adheres to strict quality standards to ensure high citral content and purity, critical for B2B buyers in food, pharmaceutical, and cosmetic sectors.
Physical and Chemical Properties
Lemon Myrtle essential oil is pale yellow with a density of approximately 0.89 g/cm³. Its primary component, citral (a mix of geranial and neral), boasts a boiling point of 229°C and is insoluble in water but miscible with alcohols and carrier oils. The oil’s antimicrobial and antifungal properties are attributed to citral’s aldehyde structure. Dried leaves retain much of their fragrance and are rich in polyphenols, contributing to antioxidant effects. The oil’s stability depends on storage conditions; exposure to light or heat accelerates degradation. Analytical methods like GC-MS are used to verify citral content, a key metric for commercial grading.
Main Applications
In the food industry, Lemon Myrtle is a natural flavoring for teas, desserts, and savory dishes, often replacing synthetic lemon flavors. Its oil is favored in gourmet products for its intensity and clean label appeal. The cosmetic industry uses it in perfumes, soaps, and skincare formulations for its fragrance and antimicrobial benefits. Therapeutic applications include aromatherapy for stress relief and as an ingredient in disinfectants. Recent studies explore its potential in pharmaceuticals for its anti-inflammatory properties. B2B buyers should note niche demands, such as organic certification for health products or food-grade purity for culinary uses.
Safety and Storage
Lemon Myrtle oil is generally recognized as safe (GRAS) but should be diluted for topical use to avoid skin irritation. Inhalation of concentrated vapors may cause respiratory discomfort. Proper storage in amber glass or aluminum containers, away from direct sunlight, preserves its shelf life of 2-3 years. Bulk procurement requires compliance with transportation regulations for essential oils, classified as hazardous materials in certain jurisdictions. Suppliers should provide Material Safety Data Sheets (MSDS) detailing flammability (flash point ~75°C) and handling precautions. Allergen labeling is advised for consumer products.
B2B Procurement Guide
B2B buyers should prioritize suppliers who provide lab-tested certificates of analysis (CoA), confirming citral content (typically 85-95%) and absence of contaminants like pesticides. Organic certification (e.g., USDA, EU) adds value for premium markets. Pricing varies by volume, with discounts for contracts exceeding 100 kg. Logistics considerations include climate-controlled shipping for oils to prevent degradation. Sample testing is recommended to assess sensory qualities (e.g., freshness, color). Establish long-term partnerships with Australian growers or certified distilleries to ensure consistent supply and traceability, crucial for brand reputation in natural product sectors.
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