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Results for Stage 1 |
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The research activities performed in this stage of the project conducted to: ¨ Establishing the analysis method for the total polyphenols content (Folin-Ciocâlteu spectrophotometric method); ¨ Obtaining the optimal method for the extraction of the total polyphenols content from sea buckthorn and sea buckthorn groats; from the tested extraction techniques, the most efficient extraction technique regarding the total polyphenols content was the refluxing (720.05 and 402.48 mg gallic acid / 100 g dry plant grit sea buckthorn groats and sea buckthorn, respectively); ¨ Establishing the spectrophotometric method for the analysis of the total anthocyanins content (pH differential method) ¨ Determining the effect of temperature on antioxidant activity and color of the extracts of buckthorn; these parameters remained stable below 100°C; ¨ The extracts showed antimicrobial activity against Staphylococcus aureus. ¨ The best antimicrobial activity presented a meal of buckthorn extract, obtained by sonication for 1 hour at 80°C. |
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Contact: INCDTIM Cluj-Napoca Dr. Maria-Loredana SORAN itim@itim-cj.ro Loredana.Soran@itim-cj.ro |
