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<p>As widely consumed beverage, the stability is crucial to the quality and shelf life of tea beverage. In this study, whey protein isolate (WPI)-beta-cyclodextrin (β-CD) was added to investigate its effect on the stability of jasmine tea beverage by pH, thermal and storage stability. The results showed tea beverages under neutral and acidic conditions are more stable than those under alkaline conditions, and have higher antioxidant activity and total phenol retention rate. The storage stability experiments (25 °C for 30 d, and 4 °C for 150 d) showed the higher the storage temperature, the less stable the tea beverages were. WPI-β-CD addition was beneficial to delaying the degradation of tea polyphenols in the tea beverages, delayed by 6.41% after 150 d of storage. This study provides a theoretical basis for the development of new tea beverage products and the wide application of EGCG.</p><p></p>

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Increasing quality stability of jasmine tea beverage by encapsulation from protein-polysaccharide nanocomplexes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月8日

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  • Hujun Xie,
  • Han Wang,
  • Min Huang,
  • Zhenbang Zhou,
  • Ying Gao,
  • Qing-Qing Cao,
  • Qingbo Jiao,
  • Gerui Ren,
  • Yong-Quan Xu

摘要

As widely consumed beverage, the stability is crucial to the quality and shelf life of tea beverage. In this study, whey protein isolate (WPI)-beta-cyclodextrin (β-CD) was added to investigate its effect on the stability of jasmine tea beverage by pH, thermal and storage stability. The results showed tea beverages under neutral and acidic conditions are more stable than those under alkaline conditions, and have higher antioxidant activity and total phenol retention rate. The storage stability experiments (25 °C for 30 d, and 4 °C for 150 d) showed the higher the storage temperature, the less stable the tea beverages were. WPI-β-CD addition was beneficial to delaying the degradation of tea polyphenols in the tea beverages, delayed by 6.41% after 150 d of storage. This study provides a theoretical basis for the development of new tea beverage products and the wide application of EGCG.