Overview
Dried Longan Extract is derived from the fruit of Dimocarpus longan, a tropical tree native to Southeast Asia. The extract is obtained through processes such as water or alcohol extraction, followed by concentration and drying. It is valued for its rich content of bioactive compounds, including polysaccharides, polyphenols, and flavonoids, which contribute to its potential health benefits. Historically, longan has been used in traditional Chinese medicine for its purported properties to nourish blood, calm the mind, and improve energy. Today, the extract is widely used in modern applications such as functional foods, dietary supplements, and cosmetic formulations.
Physical and Chemical Properties
Dried Longan Extract typically appears as a brown to light yellow powder, depending on the extraction method and concentration. It is soluble in water and alcohol, making it versatile for various formulations. The extract contains a complex mixture of bioactive compounds, including polysaccharides (e.g., longan polysaccharide), polyphenols (e.g., gallic acid), and flavonoids (e.g., quercetin). These compounds are responsible for the extract's antioxidant and anti-inflammatory properties. The extract is stable under normal storage conditions but may degrade if exposed to excessive heat or moisture. Analytical techniques such as HPLC and UV-Vis spectroscopy are commonly used to quantify its active components.
Main Applications
Dried Longan Extract is primarily used in the nutraceutical and functional food industries. It is incorporated into dietary supplements, energy drinks, and health tonics for its potential to enhance immunity, reduce fatigue, and support cardiovascular health. The extract is also used in cosmetic formulations for its antioxidant properties, which help protect skin from oxidative stress. In traditional medicine, it is often combined with other herbs to create formulations aimed at improving sleep quality and reducing anxiety. Additionally, the food industry utilizes the extract as a natural flavor enhancer and nutritional additive in products like teas, soups, and confectionery.
Safety and Storage
Dried Longan Extract is generally recognized as safe (GRAS) for consumption when used in appropriate amounts. However, excessive intake may cause mild gastrointestinal discomfort in sensitive individuals. It is recommended to follow dosage guidelines provided by manufacturers or healthcare professionals. For storage, the extract should be kept in a cool, dry place away from direct sunlight to prevent degradation of its active compounds. Sealed containers are preferable to minimize exposure to moisture and air. Suppliers typically provide a shelf life of 2-3 years when stored under optimal conditions.
B2B Procurement Guide
When sourcing Dried Longan Extract, B2B buyers should prioritize suppliers with certifications such as ISO, GMP, or organic certifications to ensure product quality and safety. Requesting third-party lab test reports for heavy metals, microbial contamination, and active compound content is essential for verification. Buyers should also consider the extraction method (e.g., water vs. alcohol extraction) and concentration of active compounds, as these factors influence the extract's efficacy and price. Bulk purchases may qualify for discounts, but it is advisable to start with smaller orders to evaluate quality before committing to large volumes.
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