Históricos e principais usos da própolis apícola

Propolis is classified as an opotherapeutic medicine due to its complex chemical composition of organic secretions from bees. The chemical composition of propolis is greatly influenced by the honeybee species, botanical source and extraction techniques. Within this frame, we compared the same propolis’ polyphenol contents and antioxidant activities prepared with different techniques. Four types of extracts were prepared. The first type was prepared classically by ethyl alcohol (POH). The second and third types were extracted by sterile distilled water kept as both sterilised (PS) and non-sterilized (PN). The fourth one was prepared with full vacuumed and dried propolis with honey (PH). The antioxidant activity of extracts were evaluated with DPPH radical scavenging, ABTS radical cation scavenging, Cupric ion reducing antioxidant capacity, total phenolic content and total flavonoid content assays. POH extract showed significantly high content of total phenol and flavonoids which followed by PN, PS and PH. POH showed approximately two times much higher activity on DPPH radical (IC50=12.24 μg/mL) compared with quercetin as references. The lowest activity on DPPH is shown by PS with 56,72 μg/mL of IC50 value. The highest activity was shown by P0OH (271,75 mg GAE/g extract) which was followed by aquatic extracts and lowest value belonged to HP.The highest scavenging activity against ABTS radical cation was shown by POH (73,37 mg TE/g extract) and the lowest activity was shown by PS (34,21 mg TE/g extract). According to the results, the new aqueous extraction technique is promising with relatively high polyphenol contents and antioxidant activities. Also honey with propolis can be an alternative product, although it has relatively lower values.

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Comparison of the Biological Potential and Chemical Composition of Brazilian and Mexican Propolis

Silva-Beltrán

Umsza-Guez

Rodrigues

et al. 2021

Applied Sciences

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Propolis is a resinous substance collected by bees from plants and its natural product is available as a safe therapeutic option easily administered orally and readily available as a natural supplement and functional food. In this work, we review the most recent scientific evidence involving propolis from two countries (Brazil and Mexico) located in different hemispheres and with varied biomes. Brazil has a scientifically well documented classification of different types of propolis. Although propolis from Brazil and Mexico present varied compositions, they share compounds with recognized biological activities in different extraction processes. Gram-negative bacteria growth is inhibited with lower concentrations of different types of propolis extracts, regardless of origin. Prominent biological activities against cancer cells and fungi were verified in the different types of extracts evaluated. Antiprotozoal activity needs to be further evaluated for propolis of both origins. Regarding the contamination of propolis (e.g., pesticides, toxic metals), few studies have been carried out. However, there is evidence of chemical contamination in propolis by anthropological action. Studies demonstrate the versatility of using propolis in its different forms (extracts, products, etc.), but several potential applications that might improve the value of Brazilian and Mexican propolis should still be investigated.

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Históricos e principais usos da própolis apícola

Cited by 3 publications

References 63 publications

Hydroalcoholic extract of Brazilian green propolis modulates inflammatory process in mice submitted to a low protein diet

Hydroalcoholic extract of Brazilian green propolis modulates inflammatory process in mice submitted to a low protein diet

Evaluation of the Polyphenol Contents and Antioxidant Activity of Propolis Extracted With Different Techniques

Comparison of the Biological Potential and Chemical Composition of Brazilian and Mexican Propolis

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