Overview
Papaya leaf extract is derived from the leaves of Carica papaya, a tropical plant native to Central and South America. It is valued for its high concentration of bioactive compounds, including papain (a proteolytic enzyme), flavonoids, alkaloids, and phenolic acids. The extract has been traditionally used in folk medicine for treating dengue fever, digestive disorders, and skin conditions. Modern research highlights its potential in pharmaceuticals and nutraceuticals due to its enzymatic and antioxidant properties. Industrial applications extend to cosmetics, where it acts as a natural exfoliant, and agriculture, as a growth promoter in animal feed.
Physical and Chemical Properties
Papaya leaf extract is typically available as a fine powder or concentrated liquid. The powder form is hygroscopic, requiring careful storage to prevent clumping. Its color ranges from light green to brown, depending on processing methods and leaf maturity. Key components include papain (up to 6% by weight), chymopapain, and carpain, alongside vitamins A, C, and E. The extract exhibits pH-dependent stability, with optimal activity in mildly acidic to neutral conditions (pH 5–7). Thermal degradation occurs above 60°C, making low-temperature extraction critical for preserving enzymatic activity.
Main Applications
In pharmaceuticals, papaya leaf extract is formulated into digestive enzyme supplements and wound-healing ointments. Its proteolytic properties aid in protein digestion and anti-inflammatory responses. The nutraceutical industry incorporates it into immunity-boosting capsules and detox blends. Cosmetic formulations leverage its exfoliating and brightening effects in serums and masks. Agriculturally, it enhances livestock feed digestion and poultry growth rates. Emerging research explores its antiviral potential, particularly against dengue and other arboviruses, though clinical validation is ongoing.
Safety and Storage
While generally safe, excessive oral consumption may cause gastrointestinal irritation. Topical use should be patch-tested for allergic reactions, especially in sensitive skin types. Pregnant women should consult healthcare providers before use due to potential uterine-stimulating effects. Storage demands protection from oxidation and humidity. Powdered extract should be sealed in vacuum-packed bags with desiccants. Liquid forms require refrigeration and preservatives like potassium sorbate to prevent microbial growth. Shelf life ranges from 12–24 months under optimal conditions.
B2B Procurement Guide
Buyers should prioritize suppliers adhering to Good Manufacturing Practices (GMP) and organic certifications (e.g., USDA, EU Organic). Request Certificates of Analysis (CoA) for potency (papain activity ≥ 1,500 USP units/mg) and contaminants (heavy metals < 10 ppm). Extraction method impacts quality: freeze-dried extracts retain more bioactivity than spray-dried variants. Bulk orders (100+ kg) commonly attract 10–15% discounts. For international shipments, opt for temperature-controlled logistics to maintain stability.
Related Manufacturers
- 主营：人参粉、桑葚粉、陈皮提取物、辣木叶提取物、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：油莎豆提取物、黄精多糖、山药粉、银杏叶提取物、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、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：枸杞多糖、葛根提取物、猴头菇提取物、桑叶提取物、荷叶提取物、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、砂仁提取物、蔓越莓提取物、白桦茸提取物、樱桃粉
- 主营：苦参碱、氧化苦参碱、黑米花色苷、七叶皂苷钠、七叶皂苷、鬼臼树脂、鬼臼毒素、黑米花青素、龙胆苦苷、青蒿琥酯、青蒿素、吴茱萸碱、吴茱萸次碱、博落回总碱、鱼藤酮、二苯乙烯苷、丝肽粉、人参皂甙
- 主营：植物提取物、玉米胚芽粉、甘草提取物、桑叶提取物、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、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：青果粉、冬笋粉、甘草粉、木瓜叶提取物、山柰粉、汉菜粉、香薷粉、香榧粉、连翘粉、栀子粉、薏仁粉、榧子粉、丁香粉、小麦粉、印楝粉、菊花粉、蕨菜粉、地榆粉、糙苏粉、韭菜粉、黑麦粉、槐花粉、枸杞粉、黑木耳、刀豆粉、沙棘粉
- 主营：药食同源提取物、植物提取物、新资源食品、木瓜叶粉、大枣粉、浓缩粉、果蔬粉
- 主营：药食同源、新资源食品、果蔬粉、木瓜叶提取物、五谷杂粮、提取物、浓缩粉、浸膏
- 主营：枸杞粉、黑枸杞粉、青稞肽、食叶草粉、羊睾丸冻干粉、鹿鞭粉、沙棘浓缩汁、牛鞭粉、沙棘冻干粉、蔓越莓冻干粉、猪肾冻干粉、豌豆苗冻干粉、鹿血粉、浒苔粉、蒲公英粉、金银花粉、雷丸粉、鸡内金粉、葵花盘小分子肽
- 主营：蓝布正提取物、茶皂素、芡实提取物、荷叶提取物、艾叶提取物、覆盆子粉、槐米提取物、菊粉、鸡内金提取物、刺梨提取物、燕麦葡聚糖、当归提取物、西洋参提取物、枇把提取物、蛹虫草粉、金针菇粉、沙棘果粉、大豆异黄酮、百部提取物、连翘提取物、地黄提取物、杜仲提取物、菊苣粉、酸角粉
- 主营：甘草粉、当归提取物、枸杞粉、淡竹叶提取物、竹叶黄酮、辣木叶提取物、山药粉、沙棘果粉、玉竹提取物、桑葚粉、人参提取物、山楂提取物、决明子提取物、黄精提取物、罗汉果提取物、小麦低聚肽、鱼腥草提取物、蒲公英提取物、黑芝麻提取物、槐米提取物、草果提取物、桃仁提取物、鸡内金提取物、佛手提取物
- 主营：植物提取物、新资源食品饮料原料、藜麦肽、木瓜叶粉、浸膏、果粉、化妆品类提取物、植物性饲料原料、五谷杂粮粉、蔬菜粉、食品饮料原料
- 主营：苦瓜提取物、黄精提取物、枸杞提取物、杜仲叶提取物、甘草提取物、肉苁蓉提取物、苹果粉、雪梨粉、人参皂甙、苦参提取物、桑葚粉、沙棘粉、猴头菇速溶粉、荞麦粉、黄芪提取物、蛹虫草提取物、果蔬五谷杂粮粉、药食同源类
- 主营：蛇床子提取物、使君子提取物、刺五加提取物、桑叶粉、泽泻提取物、苍术提取物、雨生红球藻粉、虾青素、甘草提取物、倒提壶提取物、无患子提取物、葛根速溶粉、杜仲提取物、薄荷提取物、何首乌提取物、菟丝子提取物、淫羊藿提取物、黄连提取物、人参皂甙、香蕉皮粉、猪肝粉、酸枣仁肽、玉米肽
- 主营：刀豆粉、茴香粉、八角粉、木瓜叶粉、浓缩粉、丁香粉、小蓟粉、大枣粉、刀豆提取物、大枣提取物、小蓟提取物、丁香提取物、茴香提取物、八角提取物、喷雾干燥工艺