干燥工艺对宜红茶品质及抗氧化能力的影响
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现代农业产业技术体系专项(CARS–19);中央引导地方科技发展专项(2018ZYYD009);湖北省科技创新项目(2016–620–000–001– 032);湖北省农业科学院青年基金项目(2016NKYJJ22)


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    摘要:

    以福鼎大白鲜叶为原料,比较热风干燥和滚炒干燥处理对宜红茶感官品质、理化品质和抗氧化能力的影响。结果表明:热风干燥处理的宜红茶感官得分较高,茶汤的色相值(a、b)以及茶黄素、茶红素含量均显著高于滚炒干燥,水浸出物、游离氨基酸、茶多酚含量及酚氨比极显著高于滚炒干燥处理,但滚炒处理的可溶性糖含量显著高于热风干燥处理;热风干燥处理宜红茶的甜香型香气成分如苯乙醛、癸醛、芳樟醇、反–2–辛烯–1–醇、1–庚醇和水杨酸甲酯含量相对较多;热风干燥处理的茶汤对DPPH的抗氧化能力优于滚炒干燥处理。

    Abstract:

    We applied two drying treatment, hot air and heated roller, to the fresh tea leaves collected from the Fudingdabai region. The sensory quality, tea brew color, main chemical components and antioxidant activity were analyzed. The sensory score by hot air treatment was higher than that by heated roller treatment, with higher hue of tea brew color (a and b), content of theaflavins, thearubigins, content of water extract, free amino acids, tea polyphenol and the ratio of polyphenol to amino acids. While the content of soluble sugar in heated roller treatment was greater than that of the hot air treatment. The main aroma substances like hyacinthin, decanal, linalool, trans–2–octen–1–ol, 1–heptanol and methyl salicylate etc in hot air treatment showed sweet flavor, the antioxidant capacity of hot air drying were better than hot roller treatment.

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叶飞,高士伟,龚自明,罗军武,黄建安.干燥工艺对宜红茶品质及抗氧化能力的影响[J].湖南农业大学学报:自然科学版,2018,44(6):.

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  • 在线发布日期: 2018-12-25
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