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Natural resistance of rose petals to microbial attack.
J Environ Sci Health B. 2011; 46(5):381-93.JE

Abstract

Petals of red, yellow and white roses (Rosa damascene Mill.) of the family Rosaceae were extracted with (1:1) methylene chloride/methanol and tested for their antimicrobial activities against four species of Gram-positive bacteria (Bacillus cereus, Bacillus subtilis, Micrococcus luteus and Staphylococcus aureus), five species of Gram-negative bacteria (Enterobacter aerogenes, Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa and Serratia marcescens) and five species of fungi (Penicillium notatum, Aspergillus niger, Rhizopus stolonifer, Saccharomyces cerevisiae and Fusarium oxysporum). All of the crude extracts showed a wide range of antimicrobial activities according to the tested organism and rose's type. Micrococcus luteus was found to be the most susceptible bacteria to all crude extracts. Red and yellow petal extracts showed much higher antibacterial activity than the white petals extract. Bacillus subtilis was found to be the least susceptible to all extracts. The fungus, Penicillium notatum was found to be the most susceptible with white petal extract being the most effective. Saccharomyces cerevisiae and Fusarium oxysporum were the least susceptible to all extracts. White roses extract showed much higher antifungal activities against Penicillium notatum than red or yellow roses, therefore, it was subjected to several bioassay guided chromatographic fractionations and purification to isolate the active chemical(s) responsible for the antifungal activity. Chemical structure of the isolated antifungal compounds were identified by spectroscopy techniques and found to be a γ-sitosterol and (Z,Z)-9,12-octadecadienoic acid. Antibacterial activity of the various types of rose extracts were due to complex mixtures of organic compounds which are still under chemical investigation and will be published later.

Authors+Show Affiliations

Department of Chemistry, Texas Southern University, Houston, Texas, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural

Language

eng

PubMed ID

21614712

Citation

Zhang, Wenluo, et al. "Natural Resistance of Rose Petals to Microbial Attack." Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, vol. 46, no. 5, 2011, pp. 381-93.
Zhang W, Abdel-Rahman FH, Saleh MA. Natural resistance of rose petals to microbial attack. J Environ Sci Health B. 2011;46(5):381-93.
Zhang, W., Abdel-Rahman, F. H., & Saleh, M. A. (2011). Natural resistance of rose petals to microbial attack. Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, 46(5), 381-93. https://doi.org/10.1080/03601234.2011.572502
Zhang W, Abdel-Rahman FH, Saleh MA. Natural Resistance of Rose Petals to Microbial Attack. J Environ Sci Health B. 2011;46(5):381-93. PubMed PMID: 21614712.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Natural resistance of rose petals to microbial attack. AU - Zhang,Wenluo, AU - Abdel-Rahman,Fawzia H, AU - Saleh,Mahmoud A, PY - 2011/5/27/entrez PY - 2011/5/27/pubmed PY - 2011/8/31/medline SP - 381 EP - 93 JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes JO - J Environ Sci Health B VL - 46 IS - 5 N2 - Petals of red, yellow and white roses (Rosa damascene Mill.) of the family Rosaceae were extracted with (1:1) methylene chloride/methanol and tested for their antimicrobial activities against four species of Gram-positive bacteria (Bacillus cereus, Bacillus subtilis, Micrococcus luteus and Staphylococcus aureus), five species of Gram-negative bacteria (Enterobacter aerogenes, Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa and Serratia marcescens) and five species of fungi (Penicillium notatum, Aspergillus niger, Rhizopus stolonifer, Saccharomyces cerevisiae and Fusarium oxysporum). All of the crude extracts showed a wide range of antimicrobial activities according to the tested organism and rose's type. Micrococcus luteus was found to be the most susceptible bacteria to all crude extracts. Red and yellow petal extracts showed much higher antibacterial activity than the white petals extract. Bacillus subtilis was found to be the least susceptible to all extracts. The fungus, Penicillium notatum was found to be the most susceptible with white petal extract being the most effective. Saccharomyces cerevisiae and Fusarium oxysporum were the least susceptible to all extracts. White roses extract showed much higher antifungal activities against Penicillium notatum than red or yellow roses, therefore, it was subjected to several bioassay guided chromatographic fractionations and purification to isolate the active chemical(s) responsible for the antifungal activity. Chemical structure of the isolated antifungal compounds were identified by spectroscopy techniques and found to be a γ-sitosterol and (Z,Z)-9,12-octadecadienoic acid. Antibacterial activity of the various types of rose extracts were due to complex mixtures of organic compounds which are still under chemical investigation and will be published later. SN - 1532-4109 UR - https://www.unboundmedicine.com/medline/citation/21614712/Natural_resistance_of_rose_petals_to_microbial_attack_ L2 - https://www.tandfonline.com/doi/full/10.1080/03601234.2011.572502 DB - PRIME DP - Unbound Medicine ER -