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  • Title: Use of water and ethanol extracts from wine grape seed pomace to prepare an antioxidant toothpaste.
    Author: Emmulo E, Ceccantoni B, Bellincontro A, Mencarelli F.
    Journal: J Sci Food Agric; 2021 Nov; 101(14):5813-5818. PubMed ID: 33792066.
    Abstract:
    BACKGROUND: Extracts of fresh wine grape seeds/skin or of grape pomace seeds were used to prepare antioxidant natural toothpastes. RESULTS: Ethanol extracted twice more polyphenols than water; ultrasound did not provide any improvement in the extraction. The addition of freeze-dried ethanol extracts of seeds or skin, at 2% and 10%, to the commercial toothpaste significantly increased the polyphenol content, both from white grape seeds and skin and from red grape seed pomace. The evaluation of time stability (shelf life) revealed a decrease, after 4 months, of 3.9% and 9.4% in total polyphenol content, in 5% and 10% water extracts, but not for ethanol extracts. 1,1-Diphenyl-2-picrilhydrazil1 antiradical activity was the highest in 10% of seed water extract toothpaste and, after 4 months, the activity was stable. CONCLUSION: Ethanol and water are efficient and safe solvents to create natural toothpaste with grape or pomace seed extract with antioxidant activity. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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