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Pharmaceutical name:
英文藥名﹕
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Arillus
Euphoriae Longanae
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Botanical name:
學名﹕
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Dimocarpus longans
Lour.
Euphoria longans (Lour.) Steud.
Pometia pinnata
Forst. (long yan of Eastern Taiwan 臺東龍眼 )
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Pron. in Japanese:
日語發音﹕
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ryuganniku
(long yan rou 龍眼肉)
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Pron. in Korean:
韓語發音﹕
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yonganyuk
(long yan rou 龍眼肉)
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Pron. in Cantonese:
粵音﹕
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lung4
ngaan5 yuk6
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Other Names:
別名﹕
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gui yuan 桂圓，yuan yan
圓眼 ，yi zhi
益智，mi pi 蜜脾，long yan gan
龍眼乾
tava
(Fijian, Taongan, Samoan name), acai (native
name)
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Common Name:
英文名﹕
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longan
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Distribution:
產地﹕
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Guangdong,
Guangxi, Fujian, Taiwan, Sichuan provinces of China, and also Philippines,
Pacific Islands, Southeast Asia.
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Properties
(characteristics)﹕
性味﹕
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1. root: slightly bitter, neutral.
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2. leaves: slightly bitter, neutral.
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3. meat (long yan rou):
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4. seeds: slightly bitter, tart, neutral.
1. 根：微苦，平。
2. 葉：微苦，平。
3. 假種皮(龍 眼 肉 )：
甘，平。
4. 種子：微苦，澀，平。
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Channels (meridians) entered:
歸經﹕
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Long
yan rou: heart and spleen
龍 眼 肉
﹕ 歸 心 ﹐ 脾 經 。
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| Medical functions:
藥理﹕
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fungus
inhibition: water extract of long yan rou (1:2), inhibits Microsporon
Audouini in test tube.
抑菌試驗：龍眼肉的水浸劑(1：2)，
在試管內對奧杜盎氏小芽胞癬菌有抑制作用。
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Actions
& Indications:
主治﹕
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Root:
for Chyluria , leucorrhea, rheumatoid arthritis.
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Leaves:
prevents epidemic influenza, epidemic meningitis,
influenza, enteritis, eczema of the scrotum.
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Long
yan rou (edible part of the fruit): as tonic after illnesses, neurasthenia,
forgetfulness, palpitation, insomnia.
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Seeds:
stomachache, scalding, bleeding from cut,
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根：
乳糜尿，白帶，風濕關節痛。
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葉：
預防流行性感冒，流行性腦脊髓膜炎，感冒，腸炎；外用治陰囊濕疹。
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假種皮(龍
眼肉)：
，病後體虛，神經衰弱，健忘，心悸，失眠。
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種子(龍
眼核)：
胃痛，燒燙傷，刀傷出血，疳氣痛；外用治外傷
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Chemical
ingredients:
化學成份﹕
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meat
(long yan ruo) contains:
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假種皮(龍
眼肉)
含
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vitamin
A, B1,
B2 , P, C
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維生素A，B1﹐
B2 P, C
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glucose
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葡萄糖
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cane
sugar
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蔗糖
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tartaric
acid
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酒石酸
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seed
contain
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種子含
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saponin
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皂貳
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pigments
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色素
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animo
acid
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氨基酸
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2-amino-4-hydroxymet-hylhex-5-ynoic
acid
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2-氨基-4-羥
基甲基-己-5-炔
酸
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2-am-ino-4-hydroxyhept-6-ynoic
acid
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2-氨基-4-羥
基-庚-6-炔
酸
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fat
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脂肪油
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tannin
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鞣質
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oil
from seeds contain:
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種子油含
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dihydrosterulic acid
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二氫蘋婆酸
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leaves
contain:
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葉含:
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quercetin
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槲皮素
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quercitrin
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槲皮貳
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friedelin,C30H50O
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無羈帖
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16-hentriacontanol,C31H64O
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16-三十一醇
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epifriedelinol,C30H52O
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表無羈帖醇
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β-sitosterol
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β-谷
甾醇
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sigmateryl-D-glucoside
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豆甾醇及豆甾醯-D-葡
萄糖式
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Dosage:
用量﹕
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long
yan rou: 6 to 15 g.
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Samples of formulae:
處方舉例﹕
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For insomnia caused by heart, spleen and blood deficient:
Prescription: long yan rou 30 g,
da zao 5 pieces,
rice 60 g.
Add water to make into porridge at night and take
before bed time.
治心脾血虚引起的失眠﹕
龍眼肉30克，
大棗5枚
，粳米60克
加 水。 晚上 睡前煮成 粥
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Modern
Research:
現代研究﹕
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antifatigue effects
of longan [1]
抗疲倦作用 【1】
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Toxicity
& Cautions:
毒素與禁忌﹕
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do not
use long yan rou in cases of phlegm-fire (damp heat in the middle jiao
/ burner)
內有痰火，中焦濕滯停飲者忌服
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