Antioxidant Activity of Brazilian Organic Propolis and Its Relation to Seasonal Variation
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2016, Vol 11, Issue 6
Abstract
Propolis is a non-toxic, brownish resinous mixture of organic constituents and volatiles compounds collected from the plant buds and exudates by Apismellifera bees. It has a variety of biological effects, such as antiviral, antimicrobial, anti-inflammatory, anticancer, and antioxidant activities. Propolis is a rich source of phenolic compounds, as well astheenvironmental clues influence its chemical composition. In thispresent study, the evaluatedpropoliswasacertified organicone produced and collectedfrom south Brazil. The aim of the research was to analyze the antioxidant activity of the propolis samples collected in different times during summer, autumn, and spring. The organic propolisethanolicextracts (OPEE) were subjected to chemical analysis in order to verify their phenolic and flavonoid compounds content and, their antioxidant activities wereassayed by synthetic free radical scavengers. In addition, the volatile composition was analyzed by CG-MS. For flavonoid content, summer was the season that presented the most varied values. For total phenolic content as well as for the antioxidant activity, autumn was the season which showed the highest values. The volatiles found in this type of propolis brought glimpses about its biological activities. In conclusion, certified organic propolis shows a high potential of use by the pharmaceutical and food industry, as well as on functional food manufacturing.
Authors and Affiliations
Risia Cristina Coelho Lacerda, Ana Paula Tiverona, ,Maria da Conceição Freitas, de Faria Tandel, Pedro Luiz Rosalen, MasaharuI kegakid, Severino Matias de Alencar
Keywords
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