Institute of Tea Science, Zhejiang University, Hangzhou 310058, China.
Institute of Tea Science, Zhejiang University, Hangzhou 310058, China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou 310058, China.
Int J Food Microbiol. 2022 Aug 2;374:109742. doi: 10.1016/j.ijfoodmicro.2022.109742. Epub 2022 May 23.
To investigate new disposal methods for agricultural waste from tea plantations, the dynamics of chemical composition and microbial populations of tea plant pruning waste during 60 days of ensiling were studied. The results showed that the pH value decreased markedly in the initial stage and then stabilized after Day 21 (approximately 3.9). At the end of ensiling, lactic and acetic acids were enriched in the silage, while most of the characteristic components of tea, including polyphenols, theanine, and caffeine, were well preserved. Microbiological analysis showed that the relative abundance of Lactobacillus increased rapidly from Day 3 (73.2%), reaching 98.6%. In addition, the dynamics of the microbial community during fermentation were related to its chemical composition and fermentation metabolites. In summary, silage can be an effective approach for treating and utilizing agricultural waste from tea plant pruning.
为了探索茶园修剪废弃物的新处理方法，研究了 60 天青贮过程中修剪废弃物化学组成和微生物种群的动态变化。结果表明，初始阶段 pH 值显著下降，第 21 天（约 3.9）后稳定。青贮结束时，青贮料中富集了乳酸和乙酸，而大部分茶叶特征成分，包括多酚、茶氨酸和咖啡因，都得到了很好的保留。微生物分析表明，从第 3 天（73.2%）开始，乳杆菌的相对丰度迅速增加，达到 98.6%。此外，发酵过程中微生物群落的动态变化与其化学组成和发酵代谢物有关。综上所述，青贮可以成为一种有效处理和利用茶园修剪废弃物的方法。
