Overview
Osmanthus extract is obtained from the fragrant flowers of Osmanthus fragrans, an evergreen shrub native to East Asia. The extraction process typically involves steam distillation or solvent extraction to capture the plant's volatile compounds and active constituents. This natural extract has been used for centuries in Chinese culinary traditions and herbal medicine. Modern applications leverage its distinctive apricot-like floral notes and therapeutic properties, making it a versatile ingredient across multiple industries.
Physical and Chemical Properties
The extract's characteristic golden hue and intense fragrance result from a complex mixture of terpenes (particularly linalool and ionone derivatives), phenolic acids, and flavonoids. These compounds contribute to both its sensory qualities and functional benefits. Quality indicators include refractive index (1.330-1.350), specific gravity, and optical rotation. The extract demonstrates good stability in acidic conditions (pH 3-6) and retains its aromatic profile when heated below 180°C, making it suitable for baked goods and processed foods.
Main Applications
In the food industry, osmanthus extract serves as a premium flavoring agent for teas, wines, confectionery, and traditional desserts like osmanthus cake. Its floral notes pair exceptionally well with green tea and honey-based products. The cosmetics industry values it for natural fragrance formulations, skincare products (for its antioxidant properties), and hair care preparations. Pharmaceutical applications include traditional remedies for coughs and digestive disorders, though clinical evidence remains limited.
Safety and Storage
As a plant-derived substance, proper storage is crucial to maintain quality. Suppliers typically recommend amber glass or food-grade plastic containers with nitrogen flushing to prevent oxidation. Shelf life ranges from 12-24 months when stored correctly. While generally safe, users should conduct patch tests for topical applications due to potential allergic reactions. Food-grade extracts must comply with local food additive regulations, with typical usage levels between 0.01-0.1% in final products.
B2B Procurement Guide
Industrial buyers should specify extraction methodology: CO2 extracts offer superior fragrance profiles but command premium prices, while hydrodistilled versions are more economical for large-scale food applications. Certificates of Analysis should confirm absence of pesticides, heavy metals, and synthetic diluents. For consistent quality, establish long-term relationships with suppliers who control the entire supply chain from flower cultivation to extraction. Minimum order quantities typically range from 5-25kg, with bulk discounts available. Consider seasonal availability - harvest periods (September-November) may affect pricing and lead times.
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