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首页> 外文期刊>Food Chemistry >In vitro digestion of meat- and cereal-based food matrix enriched with grape extracts: How are polyphenol composition, bioaccessibility and antioxidant activity affected?
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In vitro digestion of meat- and cereal-based food matrix enriched with grape extracts: How are polyphenol composition, bioaccessibility and antioxidant activity affected?

机译:富含葡萄提取物的肉类和谷物类食品基质的体外消化:多酚成分,生物可及性和抗氧化活性如何受到影响?

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The aim of this study was to evaluate the effect of enriching a complex food matrix (FM) with grape extracts on polyphenol content, composition, bioaccessibility and antioxidant activity during digestion. The grape extracts and FM were separately tested under the same conditions as controls. The FM by itself contains a significant amount of phenolic acids and flavonols, influencing the final recovery of polyphenols from grape extracts. The FM significantly increased the total recovery of polyphenols after digestion of grape seed extracts compared to those digested without the FM; however, a low recovery of proantocyanidins and total flavonoids was observed. Digestive fluids and FM compounds significantly increased the total polyphenol content of grape digests and significantly contributed to their ABTS(center dot+) scavenging activity and ferrous-ion-chelating capacity. The present study suggested that enrichment of meat-and cereal-based products with grape polyphenol extracts could be a good strategy to formulate a healthier diet.
机译:这项研究的目的是评估富含葡萄提取物的复合食品基质(FM)对消化过程中多酚含量,组成,生物可及性和抗氧化活性的影响。在与对照相同的条件下分别测试了葡萄提取物和FM。 FM本身包含大量的酚酸和黄酮醇,影响了葡萄提取物中多酚的最终回收率。与不使用FM进行消化的葡萄相比,使用FM可以显着提高消化葡萄籽提取物后多酚的总回收率。然而,观察到原花青素和总黄酮的回收率低。消化液和FM化合物显着增加了葡萄消化物中总多酚的含量,并显着促进了其ABTS(中心点+)清除活性和亚铁离子螯合能力。本研究表明,用葡萄多酚提取物丰富肉类和谷物类产品可能是制定健康饮食的好策略。

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