Overview
Perilla Leaf Extract is derived from the leaves of Perilla frutescens, a plant native to East Asia and widely cultivated for its medicinal and culinary uses. The extract is rich in bioactive compounds, particularly rosmarinic acid, which accounts for its therapeutic properties. It has been traditionally used in Chinese and Japanese medicine for treating allergies, asthma, and digestive disorders. In modern industries, Perilla Leaf Extract is valued for its antioxidant and anti-inflammatory effects, making it a popular ingredient in nutraceuticals, skincare products, and functional foods. The extract is available in various forms, including powders, liquids, and standardized extracts with specific rosmarinic acid concentrations.
Physical and Chemical Properties
Perilla Leaf Extract is typically a brownish-yellow powder or liquid with a characteristic herbal aroma. Its primary active component, rosmarinic acid, is a polyphenol with a molecular formula of C18H16O8 and a molecular weight of 360.31 g/mol. The extract is soluble in water, ethanol, and glycerin, which makes it versatile for formulation in different products. The antioxidant capacity of Perilla Leaf Extract is attributed to its ability to scavenge free radicals and chelate metal ions. Its anti-inflammatory properties are linked to the inhibition of pro-inflammatory cytokines. These properties are highly dependent on the concentration of rosmarinic acid, which can range from 10% to 98% in commercial extracts.
Main Applications
Perilla Leaf Extract is widely used in the pharmaceutical industry for its potential to treat inflammatory conditions, allergies, and respiratory disorders. It is also a common ingredient in dietary supplements aimed at boosting immune function and reducing oxidative stress. In the cosmetics industry, the extract is incorporated into skincare products for its anti-aging and soothing effects. Its antimicrobial properties make it useful in natural preservatives. Additionally, the food industry utilizes Perilla Leaf Extract as a natural flavoring agent and preservative, particularly in functional foods and beverages.
Safety and Storage
Perilla Leaf Extract is generally considered safe for consumption and topical use, with no significant adverse effects reported at recommended doses. However, individuals with allergies to Lamiaceae family plants (e.g., mint, basil) should exercise caution. Proper storage is essential to maintain the extract's efficacy. It should be kept in a cool, dry place, away from direct sunlight and moisture. Sealed containers are recommended to prevent oxidation and degradation of active compounds. Shelf life typically ranges from 12 to 24 months, depending on the form and storage conditions.
B2B Procurement Guide
When procuring Perilla Leaf Extract, businesses should prioritize suppliers who provide detailed certificates of analysis (CoA) specifying rosmarinic acid content and purity. Reputable suppliers often adhere to Good Manufacturing Practices (GMP) and may offer organic or non-GMO certifications. Bulk purchases should be accompanied by batch testing to ensure consistency in quality. Pricing varies based on concentration, form, and supplier location, with higher purity extracts commanding premium prices. Long-term contracts with suppliers can secure favorable terms and ensure a steady supply chain.
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