Coagulant Compounds from Rhizomes of Polygonum bistorta (Linn.)

^*Tayyebe Partovi^a, Maasoume Zabihi^a

^aChemistry Department, Faculty of Science, Payam-e-Noor University, Lashkarak Highway, Nakhl street, Tehran 19569, Iran.Po. Box: 19395-4697. Fax:+982122455429; Tel: +982122640152; E-mail: partovi135@gmail.com.

Corresponding author Email: partovi135@gmail.com

Accepted 6 September 2012

Abstract

The flour of rhizomes of Polygonum bistorta L. was analyzed for its coagulant compounds. These compounds were separated from the flour and identified chemically for the first time. Several spectral methods such as ¹³C NMR, ¹HNMR and FTIR were used to elucidate the structures of coagulant compounds found chemically. Two of these were identified as flavonol of flavonoids. They were 2,3’,4’,4,6-pentahydroxy flavone and 2,5’,6-trihydroxy-4,2’-dimethoxy flavone, which had not been previously reported in these species.

Keywords: Coagulant compound, Rhizomes, Polygonum Bistorta