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- Title
ÉTUDES SUR L'EXTRACTION DE COMPOSES PHÉNOLIQUES DE VIGNE BAGUETTES.
- Authors
Roxana, FILIMON; V. R., FILIMON; Antoanela, PATRAŞ; Liliana, ROTARU
- Abstract
Since a high amount of unusable waste is produced annually by grapevine pruning, the aim of this study was to evaluate the potential of vine canes to be used as a natural source of bioactive compounds for food, pharmaceutical and cosmetic industries. For the optimization of phenolic extraction procedures, grape canes of Cabernet Sauvignon were extracted with various concentrations of ethanol (0, 50, 70, 90 and 96%) and 1N sodium hydroxide, in a plant material/solvent ratio of 1:10. For further purification on preconditioned C18 SPE cartridges, supernatants were concentrated to dry in a vacuum rotary evaporator. After determining the optimal solvent concentration, time (<300 min) and temperature (20, 40, 60 °C) required to maximize phenolic compounds extraction were tested. The highest polyphenol concentration was obtained when the extraction was performed on milled vine canes (<0.5 mm particle), with 70% ethanol, 4 hours at 60 °C. After applying high temperatures, antioxidant activity and the ferric reducing power of the extracts remained high (94.01% scavenged DPPH). The research results indicated that Vitis vinifera L. canes, are sustainable sources of polyphenolic compounds with sanogenous function, currently unexploited at the real technological and economic potential.
- Publication
Lucrari Stiintifice, Universitatea de Stiinte Agricole Si Medicina Veterinara Ion Ionescu de la Brad Iasi, Seria Horticultura, 2018, Vol 61, Issue 2, p421
- ISSN
1454-7376
- Publication type
Article