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首页> 外文期刊>International journal of food science & technology >Autochthonous white grape pomaces as bioactive source for functional jams
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Autochthonous white grape pomaces as bioactive source for functional jams

机译：作为功​​能堵塞的自动加速的白葡萄部分作为生物活性源

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摘要

Seeds and skins from grape pomaces of Pecorello and Mantonico cv underwent extraction (ultrasound-assisted or maceration), in order to obtain added-value ingredients for the production of a functional pear jam. The antioxidant features of the extracts were tested by in vitro colorimetric assays. Among seeds, Mantonico by maceration (MSC) showed the best results, as well as Mantonico by ultrasound-assisted extraction (MBs) among skin extracts. The selected extracts were fully characterised by NMR and MS techniques, confirming the presence of many polyphenols, flavonoids and tannins among others. Pectin was then derivatised by the grafting procedure with the active molecules of MBs and MSC. The latter produced the best antioxidant polymer also without toxicity evaluated using Caco-2 cells and was used for the jam preparation. The functional pear jam showed improved antioxidant performances in comparison with its non-functional counterparts as well as its maintenance over time (15 days).
机译：来自磷酸葡萄葡萄和曼特罗族CV的葡萄片的种子和皮肤接受萃取（超声辅助或浸渍），以获得用于生产功能梨堵塞的添加值成分。通过体外比色测定测试提取物的抗氧化特征。在种子中，通过浸渍（MSC）的Mantonico显示出最好的结果，并且通过皮肤提取物中的超声辅助提取（MBS）和Mantonico。所选择的提取物通过NMR和MS技术完全表征，确认存在许多多酚，黄酮类化合物和单宁等的存在。然后通过接枝程序与MBS和MSC的活性分子衍生果胶。后者生产的最佳抗氧化聚合物也没有使用Caco-2细胞评估的毒性，并用于Jam制备。与其非功能性对应物相比，功能梨果酱表现出改善的抗氧化性能以及随时间（15天）的维护。

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