Overview
Patchouli extract is obtained from the leaves of Pogostemon cablin, a bushy herb native to tropical regions of Asia. The extract has been valued for centuries in traditional medicine and perfumery due to its distinctive earthy, woody aroma and therapeutic properties. The extraction process typically involves steam distillation or solvent extraction of the dried leaves. The resulting product contains a complex mixture of sesquiterpenes, particularly patchoulol, which accounts for its characteristic scent and biological activity.
Physical and Chemical Properties
Patchouli extract is a viscous liquid ranging from dark brown to greenish in color, depending on the extraction method and plant source. Its density is slightly less than water, and it exhibits good solubility in alcohol and oils but poor water solubility. The extract's chemical composition includes patchoulol (about 30-40%), along with other sesquiterpenes like α-bulnesene, α-guaiene, and seychellene. These compounds contribute to both its aromatic profile and biological activities. The extract is relatively stable when stored properly but may oxidize over time.
Main Applications
In perfumery, patchouli extract serves as a base note in many oriental and woody fragrances, valued for its fixative properties that help other scents last longer. It's a key component in many high-end perfumes and incense products. The extract also finds use in aromatherapy for its purported calming effects and in traditional medicine systems like Ayurveda and Chinese medicine for digestive and skin conditions. Additionally, it's incorporated into some cosmetic formulations for its antimicrobial properties.
Safety and Storage
Patchouli extract is generally considered safe for topical and aromatic use when properly diluted. However, some individuals may experience skin irritation or allergic reactions, so patch testing is recommended before widespread application. For storage, the extract should be kept in amber or dark glass bottles in cool conditions (15-25°C) away from direct sunlight and heat sources. Properly stored, high-quality extract can maintain its properties for 2-3 years. Suppliers should provide certificates of analysis including microbiological safety data.
B2B Procurement Guide
When sourcing patchouli extract commercially, buyers should verify the botanical source (Pogostemon cablin), as inferior substitutes are sometimes offered. The extraction method (steam distilled vs. solvent extracted) significantly affects the final product's characteristics and price. Request detailed specifications including patchoulol content (typically 30-40% for quality extracts), residual solvent levels (if applicable), and microbial limits. Consider requesting samples to evaluate aroma profile and consistency before large orders. Reputable suppliers should provide full traceability from farm to final product.
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