开发和描述棕色海藻水解剂和发酵剂,这些水解剂和发酵剂有可能减少肠道甲
Goldy De Bhowmick1, Dilip K Rai1, Oyenike Olatunji1
1The Food BioSciences Department, Teagasc Food Research Centre, Ashtown, Dublin, D15 DY05, Ireland.
Scientific reports
|July 2, 2025
概括
发酵和水解的棕色海藻,Ascophyllum nodosum和Himanthalia elongata,显示了减少肠道甲排放的潜力. 这些海藻的提取物抑制了关键的甲原体,表明它们被用作牲畜料添加剂.
科学领域:
- 海洋生物技术 海洋生物技术
- 类动物营养 类动物营养
- 减少甲排放的方法
背景情况:
- 海藻,特别是棕色品种,如Ascophyllum nodosum和Himanthalia elongata,含有具有抗菌性能的生物活性多 (氨酸).
- 这些海藻被探索为牲畜料添加剂,以减轻肠道甲 (CH4) 排放,但口感,消化能力和蛋白质吸收存在挑战.
- 发酵和水解是可以改善料特性的加工方法,并可能增强海藻成分的生物活性.
研究的目的:
- 评估发酵和水解的棕色海藻作为降低牲畜甲 (CH4) 生产的剂物的有效性.
- 评估加工的海藻提取物对重大甲基生物的抗菌活性.
主要方法:
- 爱尔兰的Ascophyllum nodosum和Himanthalia elongata是通过乳酸细菌 (LAB) 的发酵和用西兰酶酶的水解来加工的.
- 经过处理的海藻的分子重量切断值 (MWCO) 分数被测试了针对Methanococcus maripaludis和Methanobrevibacter ruminantium的抗菌活性,使用微型板和井扩散试验.
- 使用GC-MS和LC-MS分析了提取物的化学成分,重点是聚,,,脂肪酸甲基 (FAMEs) 和挥发性化合物.
主要成果:
- 针对M. maripaludis和M. ruminantium的抗菌活性在1mg/mL度下被观察到,对于经过处理的海藻中的MWCO提取物.
- 有效分数包括来自A. nodosum的多分数 (≤100-kDa和50-kDa),A. nodosum的花素提取物 (≤100-kDa) 和H. elongata的素分数 (≤100-kDa).
- 在3kDa的MWCO分量中确定了新的序列,在A. nodosum发酵和H. elongata水解中发现了显著的棕酸水平.
结论:
- 发酵和水解的棕色海藻含有生物活性化合物,具有显著的抑制甲原体的潜力,这表明它们在减少畜牧业的肠道甲排放方面的有用性.
- 特定的多和富含素的部分显示出强大的抗微生物作用,对关键的食者甲基生物有作用.
- 对优化海藻加工和配方的进一步研究是有必要的,以克服挑战并最大限度地将其作为可持续料添加剂的应用.
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