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  • Title: Free phenolic acids in Ruta graveolens L. in vitro culture.
    Author: Ekiert H, Szewczyk A, Kuś A.
    Journal: Pharmazie; 2009 Oct; 64(10):694-6. PubMed ID: 19947176.
    Abstract:
    Eight phenolic acids were determined using HPLC method in methanolic extracts of Ruta graveolens L. (Rutaceae) shoots cultured in vitro on four variants of Linsmaier and Skoog (LS) medium differing in contents of growth regulators, NAA and BAP (ranging between 0.1-3.0 mg/l). Four compounds: protocatechuic, vanillic, syringic and p-coumaric acid were detected and quantified. The total content of metabolites was dependent on LS medium variants. The contents of protocatechuic acid, quantitatively dominating on all tested LS medium variants, were considerable (from 67.15 to 93.24 mg/100 g d.w.) in comparison with its contents in the plant material under analysis (46.36 to 218.27 mg/ 100 g d.w.). This is the first report of the isolation of protocatechuic acid from an in vitro plant culture.
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