DIBAF, University of Tuscia, Viterbo, Italy.
DAFE, University of Pisa, Pisa, Italy.
J Sci Food Agric. 2021 Nov;101(14):5813-5818. doi: 10.1002/jsfa.11232. Epub 2021 May 3.
Extracts of fresh wine grape seeds/skin or of grape pomace seeds were used to prepare antioxidant natural toothpastes.
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-picrilhydrazil antiradical activity was the highest in 10% of seed water extract toothpaste and, after 4 months, the activity was stable.
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.
新鲜葡萄种子/果皮或葡萄渣种子的提取物被用于制备抗氧化天然牙膏。
乙醇提取的多酚比水提取的多酚多两倍；超声处理对提取没有任何改善。将 2%和 10%的冻干乙醇提取物添加到商业牙膏中，显著增加了来自白葡萄种子和果皮以及红葡萄渣的多酚含量。对时间稳定性（保质期）的评估表明，在 4 个月后，水提取物中 5%和 10%的总多酚含量分别下降了 3.9%和 9.4%，但乙醇提取物没有下降。1,1-二苯基-2-苦基肼自由基清除活性在 10%的种子水提取物牙膏中最高，在 4 个月后，活性稳定。
乙醇和水是有效和安全的溶剂，可用于用葡萄或渣种子提取物创建具有抗氧化活性的天然牙膏。 © 2021 作者。《食品科学杂志》由 John Wiley & Sons Ltd 代表化学工业协会出版。
