Overview
Rosemary extract is derived from the leaves of Rosmarinus officinalis, an evergreen shrub native to the Mediterranean region. It contains potent bioactive compounds like carnosic acid, rosmarinic acid, and camphor, which contribute to its antioxidant and preservative properties. The extract is obtained through solvent extraction (commonly ethanol or CO2) followed by concentration. Historically used in traditional medicine, modern applications leverage its ability to delay oxidation in fats and oils. Unlike synthetic antioxidants like BHA/BHT, rosemary extract meets clean-label demands while offering comparable efficacy in food systems. The global market has grown steadily due to rising demand for natural preservatives.
Physical and Chemical Properties
Rosemary extract's efficacy stems from its phenolic diterpenes, primarily carnosic acid (constituting 20-50% of active components). These compounds exhibit radical-scavenging activity, with ORAC (Oxygen Radical Absorbance Capacity) values ranging from 50,000-100,000 μmol TE/g. The extract is stable at high temperatures (up to 180°C), making it suitable for baked goods and fried foods. Its solubility profile allows formulation versatility: oil-soluble fractions are ideal for lipid-rich products, while water-dispersible versions (achieved via emulsifiers) work in beverages. UV-Vis spectroscopy typically shows peak absorption at 230 nm and 280 nm, useful for quality control. Batch-to-batch variation in active compound content necessitates standardized testing.
Main Applications
In food technology, rosemary extract delays rancidity in meats, snacks, and cooking oils at usage levels of 0.02-0.2%. It synergizes with tocopherols, reducing required dosages. The cosmetics industry incorporates it (0.5-2%) in anti-aging creams for its collagen-protective effects and natural fragrance. Pharmaceutical applications include hepatoprotective supplements, often combined with milk thistle. Emerging research explores its potential in animal feed to replace synthetic antioxidants. Notably, EU regulations (E392) and FDA GRAS status (21 CFR 182.20) approve its use, though maximum limits vary by application.
Safety and Storage
Rosemary extract is non-mutagenic (Ames test negative) with an LD50 >5,000 mg/kg in rodents. However, its high phenol content may irritate mucous membranes during handling. Proper PPE (gloves, goggles) is recommended for bulk processing. Storage requires protection from oxidation: nitrogen-flushed bags or amber glass containers are ideal. Shelf life is typically 24 months when stored below 25°C with <60% humidity. Manufacturers often add carrier oils (e.g., sunflower oil) to liquid extracts to prevent crystallization.
B2B Procurement Guide
Industrial buyers should prioritize: 1) Certificate of Analysis showing carnosic acid content (minimum 5% for food grade), 2) Residual solvent reports (EU limits ethanol residues to 50 ppm), and 3) Organic certifications (e.g., USDA, EU) if required. Bulk pricing tiers usually start at 100 kg, with discounts of 15-30% for metric ton quantities. Consider powder forms for shipping economy (5x more concentrated than liquids). Audit suppliers for ISO 22000 compliance and request shelf-life stability studies specific to your application matrix.
Related Manufacturers
- 主营：辣木叶提取物、人参粉、桑葚粉、迷迭香粉、陈皮提取物、藜麦肽、蓝莓粉、白芸豆提取物、甘草粉、枸杞提取物、沙棘粉、牡蛎肽、当归提取物、雪莲培养物、苹果粉、柑橘膳食纤维、淫羊藿提取物、肉苁蓉提取物、覆盆子粉、山药提取物、便秘果提取物、可水溶萃取粉、半边苏浓缩粉、半边苏提取物、甜石莲水提浸膏粉、淫羊藿双甙10%
- 主营：枸杞多糖、葛根提取物、猴头菇提取物、迷迭香粉、黑枸杞提取物、芒果粉、苹果粉、桑椹粉、火龙果粉、板蓝根提取物、酸枣仁肽、燕麦肽、丁香提取物、金银花提取物、百合提取物、茯苓提取物、赤小豆提取物、桑叶提取物、荷叶提取物、砂仁提取物、蔓越莓提取物、白桦茸提取物、樱桃粉
- 主营：丁香油、水精油、中药油、纯天然迷迭香纯露、茴香油、香叶油、香精油、桉叶素、能量油、桉叶油、洋甘菊、茶树油、皮傲宁、乙基醚、基础油、抗菌剂、蜂草油、护肤品、己二醇、当归油、鼠尾草、增补剂、玉米油、丝柏油、香薰油、提取液
- 主营：黄芪提取物、沙棘提取物、大枣多糖、迷迭香提取物、山楂提取物、山药提取物、枸杞提取物、甘草提取物、人参提取物、丹参提取物、柴胡提取物、牛蒡根提取物、薏苡仁提取物、白芍提取物、车前子提取物、益母草提取物、土茯苓提取物、百合提取物、决明子提取物、菊粉、大豆蛋白、胶原蛋白肽、大枣粉、山药粉、生姜提取物
- 主营：水果果粉、饲料原料、植物黄酮、迷迭香提取物、植物多糖、植物生物碱、化妆品原料、植物皂甙、水提提取物、植物提取物定制、植物浓缩汁、植物浸膏粉、党参提取物/党参粉、黄精提取物/黄精粉、桑葚粉/桑葚果粉、绞股蓝提取物/绞股蓝、甘草提取物 甘草、刺蒺藜提取物、丝兰提取物、杨树花提取物、金银花提取物、杜仲提取物、蓝莓粉 蓝莓、植物提取物
- 主营：油莎豆提取物、黄精多糖、山药粉、迷迭香粉、胡萝卜提取物、人参提取物、百合提取物、绿豆提取物、蚕蛹蛋白粉、蒲公英多糖、粉葛提取物、五指毛桃粉、覆盆子提取物、三七提取物、绣球菌速溶粉、枸杞提取物、甘草提取物、青苹果果粉、牛骨胶原蛋白肽、葛根提取物、银杏叶提取物、胖大海浸膏粉、海参多肽、绞股蓝浓缩粉、酸枣仁提取物、牛骨髓粉
- 主营：水果果粉、饲料原料、植物浓缩粉、迷迭香粉、植物提取物、花青素系列、原花青素提取物、鸡内金提取物、黄精提取物、白芸豆提取物、大麦芽提取物、黄芪提取物、三七提取物、肉苁蓉提取物、金银花提取物、桑椹提取物、甜叶菊提取物、杜仲提取物、山药提取物、甘草提取物、肉桂提取物、葡萄皮提取物、麦芽提取物、枸杞提取物
- 主营：藤茶提取物、枳椇子提取物、二氢槲皮素、迷迭香、槲皮素、地龙蛋白肽、马齿苋提取物、甘草提取物、黄芪粉、罗汉果粉、鱼腥草提取物、淡竹叶提取物、竹叶黄酮、葛根提取物、玉米低聚肽、酸枣仁提取物、荷叶提取物、人参提取物、蒲公英提取物、益智仁提取物、桑叶提取物、阿胶粉、麦芽提取物
- 主营：木糖醇、乳糖、木糖、迷迭香提取物、胍基乙酸、黄原胶、海藻酸钠、酪蛋白酸钠、酪蛋白/干酪素、甘氨酸、牛磺酸、瓜尔胶/瓜尔豆胶、果胶/苹果果胶、维生素CL-抗坏血酸、聚赖氨酸、苯丙氨酸、半胱氨酸、苯甲地那铵 苦精、蔗糖八乙酯 苦味剂、甘露糖醇/甘露醇、海藻糖、山梨糖醇/山梨醇、卡拉胶、蛋氨酸
- 主营：营养强化剂、抗氧化剂、增稠剂、迷迭香、酶制剂、酸味剂、食用色素、粉末香精、黄原胶
- 主营：植物提取物、提取物、固体饮料、迷迭香酸、果蔬粉、蔬菜粉、果汁粉、化妆品类提取物、食品原料、饮料原料、固体饮料原料、植物原料、提取物工厂、提取物加工、果蔬粉厂家、水溶粉、提取物定制、菌类提取物、植物浓缩粉、浓缩粉厂家、浓缩粉原料、果蔬粉定制、植物加工品、浓缩粉
- 主营：植物提取物、玉米胚芽粉、甘草提取物、迷迭香提取物、玉米低聚肽、山楂提取物、玉米胚芽浓缩粉、牡蛎肽粉、山药粉、枸杞子粉、蓝莓粉、黄精提取物、桑叶提取物、地龙蛋白、薏苡仁粉、仙人掌果粉、葛根提取物、酸枣仁提取物、沙棘提取物、人参提取物、黄芪提取物、决明子提取物、枳椇子提取物、桑葚果粉、沙棘粉、金银花提取物
- 主营：植物提取物、浓缩粉、茯苓提取物、迷迭香酸、荷叶粉、金银花提取物、菊花提取物、蛋白核小球藻、淫羊藿提取物、牡蛎肽、柑橘膳食纤维、巴西莓粉、蓝莓粉、白芸豆粉、葛根提取物、山药提取物、蓝莓果粉、陈皮提取物、洋车前子壳粉、蔓越莓果粉、硫酸软骨素、沙棘果粉、玉米须提取物、黄精提取物、蒲公英提取物、火龙果粉
- 主营：酪蛋白 干酪素、氯化胆碱、甜菜碱、迷迭香提取物厂家、酵母浸粉、低聚果糖、低聚木糖、甘露寡糖、菊粉、D-异抗坏血酸钠、ε-聚赖氨酸、ε-聚赖氨酸盐酸盐、乳酸链球菌素、丁基羟基茴香醚、阿拉伯胶、海藻酸钠、黄原胶、结冷胶、聚丙烯酸钠
- 主营：阿斯巴甜、低聚果糖、低聚木糖、迷迭香提取物厂家、甘露寡糖、结晶果糖、菊粉、纽甜、乳糖、乳糖醇、三氯蔗糖、水苏糖、甜菊糖、刺槐豆胶、瓜尔豆胶、果胶、海藻酸丙二醇酯、海藻酸钠、黄原胶、结冷胶、聚丙烯酸钠、魔芋粉、塔拉胶、琼脂、沙蒿籽胶、阿拉伯胶