title: A narrow-bore HPLC method for the identification and quantitation of free, conjugated, and bound polyamines.
abstract: A modified sensitive high-pressure liquid chromatography (HPLC) method, using a narrow-bore column (2.1 x 200 mm, C-18, 5-microns particle size) with a methanol:water gradient (55-84%, v/v), is described for direct analysis of benzoylated free (S), soluble-conjugated (SH), and insoluble-bound (PH) polyamines in plant tissues. Regression curves for each fraction of polyamines allow a precise quantitative determination of putrescine, cadaverine, spermidine, spermine, and agmatine in all fractions (S, SH, PH) of a crude extract. A comparison of the results to the corresponding values for dansylated polyamines separated by thin-layer chromatography and quantitated by fluorometry is also presented. S, SH, and PH polyamines as benzoylated derivatives from leaves of Vitis vinifera L. cv Dogridge were characterized and quantitatively determined with this improved sensitive HPLC method.
authors.affiliation: Department of Biology, University of Crete, Heraklion, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Kotzabasis
authors.forename: M D
authors.initials: MD
authors.lastname: Christakis-Hampsas
authors.forename: K A
authors.initials: KA
authors.lastname: Roubelakis-Angelakis
mesh_terms: D015317:Biogenic Polyamines / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods; D005470:Fluorometry; D012044:Regression Analysis; D015203:Reproducibility of Results; D012995:Solubility
chemical_list: D015317:Biogenic Polyamines