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7624332 
Journal Article 
Antimicrobial activity of the extracts from fruits of Rumex L. species 
Wegiera, M; Kosikowska, U; Malm, A; Smolarz, HD; , 
2011 
Yes 
Central European Journal of Biology
ISSN: 1895-104X
EISSN: 1644-3632 
DE GRUYTER POLAND SP ZOO 
WARSAW 
1036-1043 
WOS:000297363300018 
This study was designed primarily to investigate the antibacterial and antifungal activity of the extracts from fruits of six Rumex L. species: R. acetosa L., R. acetosella L., R. confertus Willd., R. crispus L., R. hydrolapathum Huds. and R. obtusifolius L. The 7 Grampositive and 7 Gram-negative bacteria strains and 5 fungal ones were tested by agar and broth dilution method. Determination of minimal inhibitory concentration (MIC) revealed that the extracts from R. confertus, R. crispus, R. hydrolapathum and R. obtusifolius exerted differential inhibitory effect on the growth of Gram-positive bacteria - staphylococci (MIC=62.5-125 A mu g/mL) and Gramnegative bacteria - Escherichia coli ATCC 3521, Proteus mirabilis, Pseudomonas aeruginosa (MIC=125 -> 500 A mu g/mL); MIC values determined by agar dilution method were somewhat higher. The same extracts inhibited also the growth of fungi - Candida spp. or Trichophyton mentagrophytes ATCC 9533 (MIC=250-500 A mu g/mL), as found by agar dilution method. The total content of polyphenols (11.66-78.36 mg/g), anthracene derivatives (0.26-12.93 mg/g) and tannins (4.00-11.16%) was also determined.