Bilin and Bilinone Chlorophyll Catabolite Content in the Hamamelidaceae Autumnal Leaves
2022
Nina, D.
In order to facilitate the quantification in autumnal Hamamelidaceae leaves, a HPLC method was used for the determination of two chlorophyll catabolites and their isomers: bilin-type (1) and bilinone-type (2) ones. The separation was done on a RP-C4 column with a gradient solvent system of 0.1% trifluoroacetic acid aqueous-methanol at the flow-rate of 0.2 mL/min and detected at 244 nm. The quantity of bilin-type (1) and bilinone-type (2) chlorophyll catabolite isomers from ten species of Hamamelidaceae autumnal leaves methanol extracts: Corylopsis pauciflora, Corylopsis spicata, Forthergilla major, Hamamelis intermedia, Hamamelis japonicum, Hamamelis japonicum var. flavopurpurscens, Hamamelis virginiana, Parrotiopsis jacquemontiana, Parrotia persica and X Sycoparrotia semidecidua were from 0.85 mg/g ~ 57.50 mg/g for bilin-type isomers (1) and 3.40 mg/g ~ 49.30 mg/g for bilinone-type isomers (2). The results obtained gave insight in quantitative bilintype (1) and bilinone-type (2) chlorophyll catabolite composition of the Hamamelidaceae plant species autumnal leaves.
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