一种基于螺旋藻水提液缓解绿茶茶汤褐变的方法

By adding spirulina aqueous extract to green tea infusion, the browning problem of green tea infusion under light conditions is solved by utilizing the interaction between phycocyanin and tea polyphenols and chlorophyll. This achieves stability in the color and active ingredients of the tea infusion, making it suitable for the industrial production of green tea beverages.

CN122397804APending Publication Date: 2026-07-17OCEAN UNIV OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Green tea liquor is prone to significant browning under light conditions, affecting the appearance and quality of the tea and the stability of its functional components. Existing technologies are unable to effectively solve this problem.

Method used

Spirulina aqueous extract was used to extract phycocyanin from spirulina powder through homogenization, stirring and centrifugation. This phycocyanin was then added to green tea infusion. The interaction between phycocyanin and tea polyphenols and chlorophyll inhibited the oxidation of tea polyphenols and the degradation of chlorophyll.

Benefits of technology

It significantly delays the browning of green tea liquor, maintains the color stability and clarity of the tea liquor, and does not affect the flavor and nutritional characteristics of the tea liquor, which is in line with the green trend of the food industry.

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Abstract

本发明公开了一种基于螺旋藻水提液缓解绿茶茶汤褐变的方法,属于食品加工技术领域。通过将螺旋藻粉与水按比例均质、室温提取并离心获得富含藻蓝蛋白的水提液,再以1%‑5%体积比添加至新鲜绿茶茶汤中。该方法在不改变茶汤原有风味和色泽的前提下,显著延缓其氧化褐变过程。实验表明,添加后茶汤在光照6天内色差变化明显低于对照组,褐变时间延长、稳定性提升。本发明工艺简单、绿色环保,不仅为控制绿茶饮品褐变提供了新策略,还实现了螺旋藻副产物的高值化利用,具有良好的应用前景。
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