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在不同的湿度梯度下,Cenchrus fungigraminus的新陈代谢概况和微生物群落结构被化

Xiaohan Hou¹, Xiaohui Chu², Yang Yang¹

¹Faculty of Animal Science and Technology Yunnan Agricultural University, Kunming, China.

Frontiers in bioengineering and biotechnology

|October 1, 2025

概括

在阳光下干燥的Cenchrus fungigraminus草用于料,显著改变了微生物群落. 较低的水分含量 (<50%) 会增加有害细菌,而较高的水分含量 (≥75%) 则有利于有益的乳酸细菌,以提高料质量.

科学领域:

农业科学农业科学
微生物学微生物学
动物营养动物营养

背景情况:

菌 (Cenchrus fungigraminus) 由于生物质高,对云南的化至关重要.
太阳干燥用于调整水分含量,以提高料的适用性.
了解在不同湿度下发酵过程中的微生物和代谢变化至关重要.

研究的目的:

调查不同太阳干时间 (水分水平) 对Cenchrus fungigraminus料的影响.
分析发酵过程中微生物群落和代谢物的变化.
为了确定料质量最佳的水分含量.

主要方法:

新鲜的Cenchrus fungigraminus被晒干,以达到88%,77%,66%和50%的水分水平.
使用16S rRNA高通量测序来评估微生物多样性和社区结构.
基于LC-MS的代谢学分析了代谢途径和代谢物概况.

主要成果:

长时间的阳光干燥减少了水溶性碳水化合物和提取物,也减少了酸不溶性纤维.
低湿度料 (50%) 显示微生物丰富度较高,但有害细菌 (Clostridium) 的增加.
乳酸细菌 (Lactobacillus,Weissella) 的丰富性与水分含量 (≥75%) 有正相关.
氨基酸通路受到上调,而酸代谢在低湿度料中受到下调.

结论:

过度阳光干燥优化纤维,但阻碍有益的微生物,可能危及料.
更高的水分含量 (≥75%) 对于促进益生菌和确保发酵稳定性至关重要.
保持足够的水分是最佳料发酵和Cenchrus fungigraminus的营养价值的关键.

关键词:

这种植物名为Cenchrus fungigraminus.细菌是一种细菌.发酵质量的发酵质量代谢途径的代谢途径含水量含水量含水量

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