Effect of Storage of Stingless Bee Propolis on the Total Phenolic and Flavonoid Contents and Antiradical Activity
Keywords:
Propolis, Antiradical activity, Effect of StorgeAbstract
Propolis is a product that is produced by the stingless bee which consists of antioxidants, phenolic compounds and flavonoids. In the past, propolis has been used as traditional medicine for oral healing and healing. Currently, propolis is processed into many products for sale, such as dietary supplements and soaps. However, The optimum conditions for post-harvest storage have not been investigated on the antioxidant activity and the total phenolic and flavonoid contents of propolis stingless bee. In this study, the effects of different storage conditions, including packaging and temperature, of propolis stingless bee on total phenolic and flavonoid contents and antioxidant activity were studied. Before and after storages, the propolis of Geniotrigono thorocica was extracted by reflux method with the ethanol solvent and analyzed for total phenolic and flavonoid contents and antioxidant activity by Folin-Ciocalteu method, Aluminum Chloride Colorimetry method and DPPH (2,2-diphenyl-1-picrylhydrazyl) respectively, The results indicated that the vacuum packing and temperature at -15 to -10 °C is an optimum condition for storage. The data displayed that storage condition affected on the phytochemical contents and antioxidant activity.
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