- Dac diem thtfc v|Lt
(HAI DONG BI, THICH DONG BI)
Erythrina orientalis (L.) Murr. Ho Dau - Fabaceac
- D ac d iem thufc v $ t
Cay go, cao 7-12m, than va canh co gai ngan. La moc sole gom 3 la chet hinh tam giac ; hai la chet hai ben co chieu rong ldn hon chieu dai. Hoa mau do tuoi moc thanh chum tCr 1 den 3 hoa. Qua gi£p den, dai trong co 5-8 hat. Hat hinh than mau nau hay hoi do.
Cay moc hoang va diipc trong de lam dau, lam canh va lam thuoc 0 hau het cac dia phi/dng trong nude ta, song cay ua moc 0 cac vung ven bien.
- Bp phan dung
La, vo than - Folium et Cortex Erythrinae
- Thanh phan hoa hoc
La va vo than deu chUa alcaloid : Erythranin, erythrinin, erythralin, erysotrin, erysonin, erysopin, erysovin, erysodin.
Ngoai ra con co flavonoid, saponin, tamin...
- Tac dung sinh hoc
+ Tac dung ha huyet ap
+ Tdc dung an than gay ngu, hiep dong vdi thuoc ngu hexobacbital (tren chuot thi nghiem)
+ Tac dung co ctfng co chan ech, co co hoanh cua chuot...
+ Alcaloid toan phan cd tac dung ufc che mot so vi khuan Staphylococcus aureus, Bacillus puminus, B.cereus, E.coli.
- Cong dung
Dung la vong uong trong cac triTdng hop mat ngu, tinh than bat an, hodc co the bon chon, dau dau tdng huy£t dp, phoi hpp vdi lac tien, cau ddng, tang ky sinh. Con dung chufa tri, uong nUdc sdc ld ; dong thdi lay ld vong bdnh te, ho nong vifa ap vao cdc mui tri. Ngoai
ra con di/oc dung de d&p vao vet thi/dng de chong len da non. Vo cay co the dung de chufa benh phong thap dau xudng khdp lifng goi, co the phoi hop vdi uy linh tien, cau ti'ch, ngi/u tat... Con dung vo de chufa benh ngoai da ; ngufa hdc lao.
- Chu y
Doi vdi la chi nen dung la banh te; phai am can, bo cuong va tri/dc gan la ; c&t doan. Neu dung nau canh an thi dung la non, cung di/a lai giac ngu ngon. Doi vdi vo cay, khi dung phai cao bo ldp vo ngoai, thai mong, phai kho. Khi dung sao vdi n/du.
+ Chat erythrin co tac dung doc cho nen doi vdi ngi/di bi viem loet da day ta trang dung vong nem phai than trong.