Overview
Taxus root, harvested from various yew tree species (Taxus spp.), is a critical botanical resource in both traditional medicine and modern pharmacology. The root bark and smaller roots contain taxanes, notably paclitaxel, a diterpenoid compound with significant anticancer properties. While the Pacific yew (Taxus brevifolia) was the original source of paclitaxel, Chinese yew species like Taxus chinensis are now cultivated for sustainable extraction. The root's importance stems from its role as a raw material for semi-synthetic paclitaxel production, a chemotherapy drug used to treat ovarian, breast, and lung cancers. Beyond pharmaceutical applications, it has been used in traditional Chinese medicine for centuries, though modern usage is strictly controlled due to toxicity concerns.
Physical and Chemical Properties
Taxus root presents as fibrous, woody material with a brownish exterior and lighter inner tissue. Its bioactive compounds are concentrated in the root bark, which contains complex mixtures of taxanes, lignans, and flavonoids. Paclitaxel (C47H51NO14) is the most clinically significant component, typically constituting 0.01%-0.05% of dry weight in wild specimens, though cultivated varieties may yield higher percentages. Extraction requires specialized solvents like methanol or dichloromethane due to the compounds' low water solubility. The root's density and composition vary by species, age, and growing conditions, necessitating standardized testing for pharmaceutical use. Notably, all Taxus species contain toxic alkaloids (e.g., taxine B) that require careful processing to isolate therapeutic compounds safely.
Main Applications
The primary industrial use of Taxus root is in the production of paclitaxel and its derivatives, which are key components in chemotherapy drugs such as Taxol and Abraxane. These medications work by stabilizing microtubules, inhibiting cancer cell division. Global demand exceeds 500 kg annually, driving cultivation programs in China and other regions. In traditional medicine (used under professional guidance only), preparations have been employed for conditions ranging from diabetes to rheumatism, though efficacy and safety lack modern clinical validation. Research continues into other potential applications, including anti-inflammatory and neuroprotective effects from lesser-studied compounds in the root matrix.
Safety and Storage
Raw Taxus root poses significant health risks due to taxine alkaloids, which can cause cardiac arrhythmias and respiratory failure if ingested. Proper handling requires gloves and masks to prevent skin absorption or inhalation of dust during processing. Facilities must comply with pharmaceutical-grade containment protocols during extraction. For storage, dried roots should be kept in airtight containers at 15-25°C with humidity below 60% to prevent mold or compound degradation. Shelf life typically ranges from 2-3 years when properly preserved. Regulatory compliance is essential, as many countries control yew material trade under CITES or medicinal substance laws.
B2B Procurement Guide
Pharmaceutical buyers should prioritize suppliers with certifications for sustainable cultivation (e.g., CITES permits) and analytical reports quantifying paclitaxel content (HPLC verified). Key purchasing metrics include extraction yield (target >0.03% paclitaxel), absence of heavy metals, and documentation of species origin (preferably Taxus chinensis or T. yunnanensis). Bulk pricing often follows a tiered structure based on purity, with GMP-grade material commanding premiums. Lead times can extend to 3-6 months due to cultivation cycles. Alternative sourcing options include tissue culture-derived biomass or fermented production methods, which may offer more consistent quality than wild-harvested roots.
Related Manufacturers
- 主营：按方抓药超细粉加工、甘遂大戟芫花、南星半夏松香、酸枣树根、金雀根、藤梨根、芫花根、川乌、草乌、曼陀罗花、輕粉、白降、巴豆、三分三、黄荆子、金雀花、柿蒂、天仙藤、墓头回、马兜铃
- 主营：中药材、冷背药材、矿石类、根茎类、全草类、白芨、人参
- 主营：珍珠粉、地骷髅、猫爪草、钱一条、杭白菊、车前草、蒲公英、鸡骨草、四宝片、广藿香、柯子肉、小茴香、香樟木、威灵仙、血余碳、覆盆子、胆南星、毒鱼藤、金果榄、白马骨、灯盏花、紫河车、吴茱萸、海风藤、黑蜘蛛
- 主营：珍珠粉、金虫草、赤小豆、千斤拔、猫爪草、浙贝母、鸡血藤、钱一对、吴茱萸、石斛粉、玛咖片、白梅花、银杏叶、甜瓜子、桑寄生、四宝片、太子参、粉防己、女贞子、香加皮、使君子、法半夏、苏合香、覆盆子、鹿含草
- 主营：夜来香、钱一条、大皂角、茉莉根、银杏叶、白檀香、黄药子、桑寄生、鸡骨草、两头尖、伸筋花、马兜铃、金锁匙、绞股蓝、连钱草、使君子、金铁锁、血余碳、覆盆子、灯盏花、红参片、一口钟、西红花、三七粉、竹节参
- 主营：一条根、臭梧桐根、中药材、黄瓜子
- 主营：刺嫩芽苗、刺老包苗、五味子苗、红豆杉苗、红豆杉树苗、红豆杉小苗、东北红豆杉、红豆杉树、红豆杉基地、刺五加苗、黄菠萝苗、蒙古栎苗、大榛子苗、东北椴树苗、黄菠萝树苗、冷杉苗基地、云杉苗木基地、黄柏苗、冷杉苗、云杉苗
- 主营：花曲柳、假色槭、银杏树、红豆杉、红松苗、五角枫、沼泽枫、水曲柳、九角枫、五角槭、海松苗、大乔木、茶条枫、茶条槭、大叶梣、冷杉树、行道树、蒙古栎、庭院绿篱、假青云杉、松科云杉、三花槭苗、耐寒冷杉、造景绿植、观赏苗木
- 主营：绣花针、马蹄草、积雪草、刺梨根、中药材、花生衣、通经草、锦灯笼、桃树皮、猪鞭草、巴豆霜、白附子、羊耳藤、松花粉、灯芯草、柏子仁、冷水七、羊角丝、安息香、断肠草、无头藤、藏红花、鸡骨香、盘龙参、红升丹
- 主营：棕榈子、兔耳风、三七花、中药材、山楂豆、菊三七、大就架、雪莲子、西洋参、刺五加皮、冬虫夏草、头顶一颗珠、七叶一枝花