卡瓦提取物-卡瓦內(nèi)酯
【英文名稱】Kava Extract
【C A S 號(hào)】9000-38-8
【產(chǎn)品規(guī)格】卡瓦內(nèi)酯(Kavalactones)≥30%50% 70%
【檢測方法】HPLC
【產(chǎn)品性狀】棕黃色精細(xì)粉末
【產(chǎn)品包裝】1kg/包；25kg/桶；或可根據(jù)客戶需求包裝
【理化性質(zhì)】不溶于水，易溶于有機(jī)溶劑。
【產(chǎn)品保存】貯存在清潔、干燥、陰涼、通風(fēng)、無異味的專用倉庫中
【藥理作用】具有鎮(zhèn)靜、催眠、抗菌、止痛等多方面的藥理作用，在歐美等地廣泛應(yīng)用于營養(yǎng)補(bǔ)充劑和草藥制劑。
原料說明：
【來 源】胡椒科植物卡瓦Piper methysticum的干燥根提取物。
【產(chǎn) 地】分布于南太平洋島國：斐濟(jì)、瓦努阿圖、玻利尼西亞等地.
【性 狀】主根直徑1cm，側(cè)根5-8枝，深褐色，帶毛根，根體長度大于8cm，氣辛辣，味略酸。
【性味歸經(jīng)】不是中藥，所以無性味
【化學(xué)成分】卡瓦內(nèi)酯，卡瓦吡喃酮等。具體6種卡瓦胡椒內(nèi)酯 ：即醉椒素、二氫醉椒素、醉椒苦素、二氫醉椒苦素、甲氧基醉椒素和去甲氧基醉椒素。
卡瓦是kavakava英文譯名( 卡哇、卡瓦、咔瓦、佳華、咔哇、洋哥那、揚(yáng)格納等）。
卡瓦是一種胡椒科類植物，屬多年生灌木，主要生長于南太平洋島嶼。當(dāng)?shù)厝藢⑵湔ブ鳛榍榫w飲料。
卡瓦胡椒（Piper methysticum Forst）生長期2-5年，高2-4米，根莖8厘米，卡瓦植物野生或栽培，根和莖入藥，卡瓦根莖藥食兼用，卡瓦胡椒的主要藥效成分：醉椒素、二氫醉椒素、醉人素、二氫醉人素、羊高寧以及去甲羊高寧等，此外還有含有少量的生物堿和酰胺類物質(zhì)，另外還有卡哇酸、胡椒酸、等十八種有機(jī)酸和多種醇類。還含鈉、鉀、鈣、鎂、鋁、鐵、硅等無機(jī)元素，葡萄糖類及15種氨基酸，含多種維生素。
飲用卡瓦根莖生理效應(yīng)：鎮(zhèn)靜催眠、安定情緒、緩解壓抑感等多種生理效應(yīng)，且未觀察到藥物依賴性。
What is kava?
Kava (Piper methysticum) is a shrub belonging to the pepper family,Piperaceae. The root or stump of the shrub contains kavalactones, which have sedative and muscle-relaxant effects.
Other names
Kava is also known as "kava kava",kawa(Fiji),waka(Fiji),lewena(Fiji),yaqona(Fiji),grog(Fiji),sakau(Pohnpei),'awa(Hawaii),'ava(Samoa) andwati(New Guinea).
What does it look like?
Kava can be in the form of a brown powder, in capsules, extracts, drops or mixed as a brownish-coloured drink.
How and why is it used?
Kava drinking in the Pacific Islands
Traditionally, Pacific Islanders crushed, chewed and ground the root and stump of the shrub, then soaked it in cold ** to produce a drink for use in ceremonies and other cultural practices. Kava-drinking rituals helped to strengthen ties among groups, to reaffirm status and rank in the community, and to communicate with the spirits.
Many Pacific Islanders who have settled in Australia continue their cultural practice of drinking kava, and in recent decades other Australians have taken up kava drinking, or using products containing kava extracts.
Kava drinking in Australia
In the 1980s, kava was introduced to Australian Indigenous communities in the north of Australia. It was thought that substituting alcohol with kava would reduce alcohol consumption and alcohol-related harms.
These days, kava drinking is not limited to ceremonies and traditional use. It is often used more heavily and for its sedative, hypnotic and muscle-relaxant effects, in much the same way that alcohol is used.
Herbal preparations
Kava extract is used in some herbal preparations. These manufactured tablets and preparations are sold as over-the-counter medicines to treat insomnia and to relieve stress and anxiety.
Effects of kava
The effects of any drug (including kava) vary from person to person. How kava affects a person depends on many things including their size, weight and health, also whether the person is used to taking it. The effects of kava, as with any drug, also depend on the amount taken.
There is no safe level of drug use.Use of any drug always carries some risk—even medications can produce unwanted side effects. It is important to be careful when taking any type of drug.
Physical effects
Moderate doses
Kava acts as a sedative and muscle relaxant. Drinking it in moderate amounts can make a person feel happy, sleepy and relaxed. It can also numb the mouth and throat and reduce the person's appetite.
Higher doses
Drinking large amounts of kava may result in sleepiness, nausea and loss of muscle control.
Excessive use of kava has been associated with a number of health-related problems. Some of the unpleasant side effects include:
bloodshot eyes
dry, scaly skin
malnutrition and severe weight loss
increased susceptibility to infections
loss of muscle control
shortness of breath
chest pains
high blood pressure.
Psychological effects of kava
Excessive use of kava has been associated with mood swings and a general state of apathy. Psychological problems such as depression and schizophrenia may be complicated by excessive use of kava.
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