储存温度对绿茶质量的影响:基于成分变化的评估
Hui Zhu1,2, Tao Sheng1, Yujie Wu1
1Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Engineering Research Center for High Value Utilization of Characteristic Agricultural Products, School of Food and Nutrition, Anhui Agricultural University, Hefei, China.
Journal of the science of food and agriculture
|December 26, 2025
概括
在4°C的最佳绿茶储存条件下,可以保持质量和生物活性. 这种干燥储存方法具有成本效益,非常适合长期保存有益的化合物,如 катехин和theanine.
科学领域:
- 食品科学 食品科学 食品科学
- 农业化学 农业化学
- 生物化学 生物化学
背景情况:
- 绿茶含有有价值的生物活性化合物.
- 存储不当会导致这些活性成分的降解,降低整体质量和价值.
- 了解最佳的储存条件对于保持绿茶的益处至关重要.
研究的目的:
- 研究各种储存温度对黄山毛峰茶 (H-GT) 和卢安瓜茶 (L-GT) 品质的影响.
- 在不同的储存条件下评估物理化学性质,味道相关成分和抗氧化能力的变化.
- 为了确定绿茶长期保存的最佳储存温度.
主要方法:
- 两种类型的绿茶 (H-GT和L-GT) 在-20°C至25°C的温度下存储300天.
- 分析了物理化学性质,与味道相关的成分 (例如,儿茶素,茶氨酸) 和抗氧化活性 (ABTS,FRAP,DPPH试验).
- 动力建模用于评估关键组件的稳定性并确定最佳存储条件.
主要成果:
- 储存温度显著影响绿茶的内在成分和抗氧化活性.
- 总儿茶素含量下降,而神氨酸含量显示出最初的增加,随后下降.
- 在4°C (干燥区) 和-20°C (冷区) 观察到最佳的储存稳定性,有效地保持质量和生物活性.
结论:
- 在4°C的干燥储存区,绿茶的保存性能表现出色.
- 这种4°C的储存条件具有成本效益,是长期储存绿茶的最佳选择.
- 这些发现为绿茶的低温,干燥区储存策略提供了科学基础.
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