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首页> 美国卫生研究院文献>Antioxidants >Enhancement of Minor Ginsenosides Contents and Antioxidant Capacity of American and Canadian Ginsengs (Panax quinquefolius) by Puffing
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Enhancement of Minor Ginsenosides Contents and Antioxidant Capacity of American and Canadian Ginsengs (Panax quinquefolius) by Puffing

机译：膨化提高美国和加拿大人参（Panax quinquefolius）的次要人参皂苷含量和抗氧化能力

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摘要

The effects of puffing on ginsenosides content and antioxidant activities of American and Canadian ginsengs, , were investigated. American and Canadian ginsengs puffed at different pressures were extracted using 70% ethanol. Puffing formed a porous structure, inducing the efficient elution of internal compounds that resulted in significant increases in extraction yields and crude saponin content. The content of minor ginsenosides (Rg2, Rg3, compound K) increased with increasing puffing pressure, whereas that of major ginsenosides (Rg1, Re, Rf, Rb1, Rc, Rd) decreased, possibly due to their deglycosylation and pyrolysis. Furthermore, 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activity, total phenolic content, total flavonoid content, amount of Maillard reaction products, and acidic polysaccharides content increased with increasing puffing pressure, but 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity did not. There was no substantial difference in the results between puffed American and Canadian ginsengs. Consequently, these results suggest that puffing can be a promising novel technology for processing to achieve higher levels of minor ginsenosides and obtain value-added products.
机译：研究了膨化对美国和加拿大人参的人参皂苷含量和抗氧化活性的影响。使用70％乙醇提取在不同压力下膨化的美国和加拿大人参。膨化形成多孔结构，可有效洗脱内部化合物，从而显着提高提取率和粗皂苷含量。少量人参皂苷（Rg2，Rg3，化合物K）的含量随膨化压力的增加而增加，而主要人参皂苷（Rg1，Re，Rf，Rb1，Rc，Rd）的含量降低，这可能是由于它们的去糖基化和热解作用所致。此外，随着膨化压力的增加，2,2'-叠氮基双（3-乙基苯并噻唑啉-6-磺酸）（ABTS）的自由基清除活性，总酚含量，总黄酮含量，美拉德反应产物的量和酸性多糖的含量均增加，但2,2-二苯基-1-吡啶并肼基（DPPH）自由基清除活性没有。膨化的美国人参和加拿大人参之间的结果没有实质性差异。因此，这些结果表明，膨化可以是一种有前途的新颖技术，用于加工以获得更高含量的次要人参皂苷并获得增值产品。

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