| Title: | Composition of the volatile fraction of a sample of Brazilian green propolic and its phytotoxic activity |
| Author(s): | Fernandes-Silva CC; Lima CA; Negri G; Salatino ML; Salatino A; Mayworm MA; |
| Address: | "Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of Sao Paulo, Sao Paulo, SP, Brazil. CEBRID, Department of Preventive Medicine, Federal University of Sao Paulo, Sao Paulo, SP, Brazil. University of Santo Amaro, Sao Paulo, SP, Brazil" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| Abstract: | "BACKGROUND: Propolis is a resinous material produced by honeybees, containing mainly beeswax and plant material. Despite the wide spectrum of biological activity of propolis, to our knowledge no studies have been carried out about phytotoxic properties of Brazilian propolis and its constituents. The aims of this study were to analyze the chemical composition and to evaluate the phytotoxic activity of the volatile fraction of a sample of Brazilian green propolis. RESULTS: Main constituents are the phenylpropanoid 3-prenylcinnamic acid allyl ester (26.3%) and the sesquiterpene spathulenol (23.4%). Several other sesquiterpenes and phenylpropanoids, in addition to linalool and alpha-terpineol (monoterpenes), were also detected. The activity of solutions of the volatile fraction at 1.0, 0.5 and 0.1% was tested on lettuce seeds and seedlings. The solution at 1% inhibited completely the seed germination and solutions at 0.1 and 0.5% reduced the germination rate index. The solution at 0.5% reduced the growth of the hypocotyl-radicle axis and the development of the cotyledon leaf. CONCLUSIONS: The chemical composition of the volatile fraction of this Brazilian green propolis is different from those previously described, and these results may contribute to a better understanding about the chemical variations in propolis. The volatile fraction of Brazilian green propolis influences both germination of seed lettuce and the growth of its seedlings, showing an phytotoxic potential" |
| Keywords: | Brazil Germination/*drug effects Lettuce/*drug effects Propolis/chemistry/*pharmacology Seedlings/*drug effects Seeds/*drug effects Volatile Organic Compounds/chemistry/*pharmacology Brazilian green propolis allelopathy phenylpropanoids phytotoxicity terp; |
| Notes: | "MedlineFernandes-Silva, Caroline C Lima, Carolina A Negri, Giuseppina Salatino, Maria L F Salatino, Antonio Mayworm, Marco A S eng Research Support, Non-U.S. Gov't England 2014/12/17 J Sci Food Agric. 2015 Dec; 95(15):3091-5. doi: 10.1002/jsfa.7045. Epub 2015 Jan 16" |
