Punyasiri, P.A.N.Herath, N.L.Amarakoon, A.M.T.2015-06-192015-06-191990Sri Lanka Journal of Tea Science59(1)pp.24-28https://dl.nsf.gov.lk/handle/1/19579ChemistryPolyphenolsTeaAn improved procedure for the isolation of flavanols from tea leavesArticle