Overview
Pterostilbene is a natural dimethylated analog of resveratrol, primarily found in blueberries, grapes, and certain tree barks. It has gained attention for its enhanced bioavailability and potent biological activities compared to resveratrol. The compound is synthesized in plants as a phytoalexin, offering protection against pathogens and environmental stress. Industrially, pterostilbene is extracted from plant sources or chemically synthesized for use in nutraceuticals, pharmaceuticals, and cosmetic formulations. Its stability and lipophilic nature make it suitable for encapsulation and topical applications. Research highlights its potential in managing oxidative stress, inflammation, and metabolic disorders.
Physical and Chemical Properties
Pterostilbene is characterized by its white crystalline form and moderate solubility in organic solvents. Its molecular structure includes two methoxy groups, which contribute to its higher lipophilicity and membrane permeability than resveratrol. This property enhances its absorption and retention in the human body. The compound exhibits strong UV absorption, making it useful in sunscreen formulations. Its melting point ranges between 89-92°C, and it degrades at higher temperatures. Stability studies recommend protection from light and oxidation during storage to maintain efficacy.
Main Applications
In the dietary supplement industry, pterostilbene is marketed for its anti-aging and cognitive health benefits. It is often combined with other antioxidants like coenzyme Q10 or curcumin to enhance synergistic effects. Clinical studies explore its role in cardiovascular health and glucose metabolism. Pharmaceutical applications include investigational drugs for cancer prevention and neurodegenerative diseases. Cosmetics leverage its antioxidant properties to formulate anti-wrinkle creams and serums. Functional foods, such as fortified beverages, incorporate pterostilbene to appeal to health-conscious consumers.
Safety and Storage
Pterostilbene is generally safe for consumption at doses up to 250 mg/day, though higher doses may require medical supervision. Animal studies indicate low toxicity, but human data remain limited. Always adhere to recommended guidelines and regulatory limits for specific applications. Proper storage involves airtight containers with desiccants to prevent moisture absorption. Temperature should be maintained below 25°C, and exposure to direct sunlight must be avoided. Bulk quantities should be stored in palletized, climate-controlled warehouses to ensure longevity.
B2B Procurement Guide
When sourcing pterostilbene, prioritize suppliers with transparent quality control processes. Request certificates of analysis (CoA) detailing purity, heavy metal content, and residual solvents. Ethically sourced raw materials, such as USDA-certified organic blueberries, may command premium pricing. Consider partnering with manufacturers offering custom formulations (e.g., water-soluble variants or nanoemulsions) to meet specific product requirements. MOQs (minimum order quantities) typically start at 1 kg for lab-scale purchases, with discounts available for bulk orders exceeding 100 kg. Lead times vary but average 2-4 weeks for standard batches.
Related Manufacturers
- 主营：对照品、标准品、当归酸酐、假白藜芦碱、佛手柑内酯、新当归内酯、补骨脂甲素、补骨脂乙素、羟基芍药苷、阿魏酸松柏酯、水合氧化前胡素、豆甾醇葡萄糖苷
- 主营：中药标准品、标准品对照品、天然化合物、假白藜芦碱、标准品、分析试剂、细胞实验、动物实验、中药提取物、单体化合物、科研实验用
- 主营：精萃宝对照品、一叶萩碱、三叶豆紫檀苷、羟基红花黄色素A、苍术素、苍术酮、盐酸血根碱、盐酸白屈菜红碱、药根碱、藁本内酯、欧当归内酯A、高丽槐素、松果菊苷、马钱苷、莫诺苷
- 主营：中药对照品、药物杂质标准品、中药农产空白基质、假白藜芦碱中药对照品、分析标准品、药典标准溶液、标准物质、标准品、对照品
- 主营：标准溶液/试液、指示液、中药对照药材、中药对照品、2025药典、滴定溶液、化学分析标准品、杂质对照品、空白基质、硝酸银滴定溶液、氯化钙试液、缓冲液、稳定同位素化合物、稀甘油、高氯酸滴定溶液、稀醋酸、碘化钾碘试液、氯化钠溶液