Changes in physicochemical characteristics and antioxidant activities of Jerusalem artichoke tea infusions resulting from different production processes

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• 作者：Young-Jun Lee (1)
  Myoung-gi Lee (1)
  Seok-Yeong Yu (1)
  Won-Byong Yoon (1)
  Ok-Hwan Lee (1)
  
• 关键词：Jerusalem artichoke (Helianthus tuberosus L.) ; physicochemical property ; different production process ; tea infusion ; antioxidant activity
• 刊名：Food Science and Biotechnology
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：23
• 期：6
• 页码：1885-1892
• 全文大小：926 KB
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• 作者单位：Young-Jun Lee (1)
  Myoung-gi Lee (1)
  Seok-Yeong Yu (1)
  Won-Byong Yoon (1)
  Ok-Hwan Lee (1)
  
  1. Department of Food Science and Biotechnology, Kangwon National University, Chuncheon, Gangwon, 200-701, Korea
  
• ISSN：2092-6456

文摘

The physicochemical properties of Jerusalem artichoke (Helianthus tuberosus L.) tea infusions produced using drying, roasting, puffing, and extrusion methods were investigated. The surfaces of puffed and extruded artichokes were more porous than the surfaces of dried and roasted artichokes. The water solubility index was highest for tea infusions of extruded and puffed artichokes. The total phenolic contents and antioxidant activities of artichoke tea infusions were in the order of puffed>extruded> roasted>hot air dried. Moderate and fine particle sizes used for tea infusions had the highest browning degrees and antioxidant activities, similar to total phenolic contents. Basic data are provided with implications for further development of processed food products, including tea bags using Jerusalem artichoke.