甲通过奎尔素,酸和酸减少:分子结构对甲形成和体外发酵的影响
Natalja P Nørskov1, Marco Battelli2, Mihai V Curtasu3
1Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark. natalja.norskov@anivet.au.dk.
Scientific reports
|September 25, 2023
概括
某些植物二次代谢物 (PSM) 有效地降低了小动物的甲产量. 它们的特定分子结构和化学特性是这种抗甲原效应的关键,影响挥发性脂肪酸的产生.
科学领域:
- 农业科学 农业科学
- 生物化学 生物化学
- 环境科学环境科学
背景情况:
- 鲁米纳尔甲 (CH4) 生产是畜牧业温室气体排放的重要来源.
- 植物二次代谢物 (PSM) 显示出减轻CH4排放的潜力.
- 负责抗甲原活性的PSM的特定结构特征需要阐明.
研究的目的:
- 调查八种结构上不同的PSM对体外转动物甲生产的影响.
- 确定哪些PSM及其化学特性在减少甲形成方面最有效.
- 了解PSM结构与它们对挥发性脂肪酸 (VFA) 生产的影响之间的关系.
主要方法:
- 实验室中使用了乳头发酵系统,模拟了乳头状况.
- 八种PSM (酸,酸,酸,甲基素,乙基素,乙基素,素,鲁丁,素) 被添加到玉米料中,其干物质含量为12%.
- 甲产量和总挥发性脂肪酸 (VFA) 度在化48小时后进行测量.
主要成果:
- 奎尔赛丁,酸和酸显著减少了甲产量,分别减少了43%,39%和34%.
- 这三种化合物并没有改变VFA总产量.
- 其他测试的PSM并没有减少甲,但显著影响了VFA配置文件.
结论:
- PSM的抗甲原效力与它们独特的分子结构和化学特性密切相关.
- 脂性,双键的存在,碳基,糖分和聚合物影响CH4的减少和VFA的产生.
- 进一步研究PSM的结构功能关系对于开发有效的甲减排策略至关重要.
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